Grandstream Networks GRP260X Series Instruction Manual

Grandstream Networks, Inc.
GRP260X SERIES – ADMINISTRATION GUIDE

GRP260x Series - Administration Guide
Thank you for purchasing Grandstream GRP260X Essential IP Phones.
Part of the GRP series of Carrier-Grade IP Phones, the GRP2601/GRP2602 is an essential 2-line model designed with zero-
touch provisioning for mass deployment and easy management. It features a sleek design and a suite of next-generation
features including 5-way voice conferencing to maximize productivity and dual-band Wi-Fi support (GRP2602 only), EHS
support for Plantronics & Jabra & Sennheiser headsets, and multi-language support. The GRP series includes carrier-grade
security features to provide enterprise-level security, including secure boot, dual firmware images, and encrypted data
storage. For cloud provisioning and centralized management, the GRP260X is supported by Grandstream’s Device
Management System (GDMS), which provides a centralized interface to configure, provision, manage and monitor
deployments of Grandstream endpoints. Built for the needs of desktop workers and designed for easy deployment by
enterprises, service providers, and other high-volume markets, the GRP2601/GRP2602 offers an easy-to-use and easy-to-
deploy voice endpoint.
Part of the GRP series of Carrier-Grade IP Phones, the GRP2603/GRP2604 is an essential 3-line model designed with zero-
touch provisioning for mass deployment and easy management. It features a sleek design and a suite of next-generation
features including 5-way voice conferencing to maximize productivity, full HD audio on both the speaker and handset to allow
users to communicate with the utmost clarity, and EHS support for Plantronics & Jabra & Sennheiser headsets, and multi-
language support. The GRP series includes carrier-grade security features to provide enterprise-level security, including secure
boot, dual firmware images, and encrypted data storage. For cloud provisioning and centralized management, the
GRP2603/GRP2604 is supported by Grandstream’s Device Management System (GDMS), which provides a centralized
interface to configure, provision, manage and monitor deployments of Grandstream endpoints. Built for the needs of desktop
workers and designed for easy deployment by enterprises, service providers, and other high-volume markets, the
GRP2603/GRP2604 offers an easy-to-use and easy-to-deploy voice endpoint.
The GRP260X series delivers superior HD audio quality, rich and leading-edge telephony features, protection for privacy, and
broad interoperability with most 3rd party SIP devices and leading SIP/NGN/IMS platforms. GRP260X series is the perfect
choice for enterprise users looking for a high-quality, feature-rich multi-line executive IP phone with advanced functionalities
and performance.
PRODUCT OVERVIEW
Feature Highlights
The following table contains the major features of the GRP260X phones:
GRP2601
GRP2601P
●4 programmable context-sensitive soft keys.
●10/100M net work ports.
●Integrated PoE (for GRP2601P only).
●5-way conference.
●Electronic Hook Switch (EHS) support for Plantronics & Jabra &
Sennheiser.
GRP2602
●2 SIP account keys with dual-color LED
●4 programmable context-sensitive soft keys.
●10/100M network ports. (1000M for GRP2602G)
●Integrated PoE (for GRP2602P/GRP2602G only).
●5-way conference.
●Electronic Hook Switch (EHS) support for Plantronics & Jabra &
Sennheiser.
●Wi-Fi support (GRP2602W only).

Table 1: GRP260x Features at a glance
Technical Specifications
The following table resumes all the technical specifications including the protocols/standards supported, voice codecs,
telephony features, languages, and upgrade/provisioning settings for the GRP260X series.
GRP2602P
GRP2602W
GRP2602G
GRP2603
GRP2603P
●3 SIP account keys with dual-color LED.
●4 XML programmable context sensitive soft keys
●132 x 64 backlit graphical LCD display
●10/100/1000 Mbps Ethernet ports.
●Integrated PoE (GRP2603P only).
●5-way conference.
●Electronic Hook Switch (EHS) support for Plantronics & Jabra &
Sennheiser.
GRP2604
GRP2604P
●3 SIP account keys with dual-color LED.
●4 XML programmable context sensitive soft keys
●132 x 64 backlit graphical LCD display
●10/100/1000 Mbps Ethernet ports.
●Integrated PoE (GRP2604P only).
●5-way conference.
●Electronic Hook Switch (EHS) support for Plantronics & Jabra &
Sennheiser.
Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, SNMP, 802.1x, TLS,
SRTP, IPV6

Network Interfaces Dual switched auto-sensing 10/100 Mbps Ethernet ports, integrated PoE (GRP2601P only)
Graphic Display 132 x 48 (2.21’’) LCD display
Feature Keys
4 XML programmable context sensitive soft keys, 5 (navigation, menu) keys. 8 dedicated function
keys for: MESSAGE (with LED indicator), TRANSFER, HEADSET, MUTE, SEND/REDIAL,
SPEAKERPHONE, VOL+, VOL
Voice Codec RJ9 headset jack (allowing EHS with Plantronics & Jabra & Sennheiser headsets)
Auxiliary Ports RJ9 headset jack (allowing EHS with Plantronics & Jabra & Sennheiser headsets)
Telephony Features
Hold, transfer, forward, 3-way conference, call park, call pickup, downloadable phonebook (XML,
LDAP, up to 2000 items), call waiting, call log (up to 800 records), off-hook auto dial, auto answer,
click-to-dial, flexible dial plan, hot-desking, personalized music ringtones and music on hold,
server redundancy and fail-over

Base Stand Yes, 1 angle positions available
Wall Mountable Yes, (*wall mount sold separately)

Table 2: GRP2601/GRP2601P Technical Specifications
QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES
encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot.
Multi-language English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese, Russian,
Croatian, Greek, and more
Upgrade/Provisioning Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR-069 or AES
encrypted XML configuration file
Power & Green Energy
Efficiency
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA;
PoE: IEEE802.3af Class 1, 3.84W; IEEE802.3az (EEE) (GRP2601P Only)
Physical Dimension: 208mm (L) x 180mm (W) x 63.4mm (H) (with handset)
Unit weight:650g; Package weight:810g (860g for GRP2601)
Temperature and
Humidity
Operation: 0°C to 40°C
Storage: -10°C to 60°C
Humidity: 10% to 90% Non-condensing
Package Content GRP2601/2601P phone, handset with cord, base stand, universal power supply (GRP2601 only),
network cable, Quick Installation Guide
Compliance
FCC: Part 15 Class B; FCC Part 68 HAC;
CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1;
RCM: AS/NZS CISPR32; AS/NZS 62368.1; AS/CA S004;
IC: ICES-003; CS-03;
Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE,
LLDP, LDAP, TR-069, SNMP, 802.1x, TLS, SRTP, IPV6
Network Interfaces Dual switched auto-sensing 10/100 Mbps (1000 Mbps for GRP2602G) Ethernet ports, integrated
PoE (GRP2602P/GRP2602G only)
Graphic Display 132 x 48 (2.21’’) backlit graphical LCD display
Wi-Fi Yes, Dual band support (GRP2602W only)
Feature Keys
2 SIP account keys with dual-color LED, 4 XML programmable context sensitive soft keys, 5
(navigation, menu) keys. 8 dedicated function keys for: MESSAGE (with LED indicator),
TRANSFER, HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL-
Voice Codec Support for G7.29A/B, G.711µ/a-law, G.726, G.722(wide-band), G723, iLBC, OPUS, in-band, and
out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC, AGC
Auxiliary Ports RJ9 headset jack (allowing EHS with Plantronics & Jabra &Sennheiser headsets)
Telephony Features
Hold, transfer, forward, 3-way conference, call park, call pickup, shared-call-appearance
(SCA)/bridged-line-appearance (BLA), downloadable phonebook (XML, LDAP, up to 2000 items),
call waiting, call log (up to 800 records), off-hook auto dial, auto answer, click-to-dial, flexible dial
plan, hot-desking, personalized music ringtones and music on hold, server redundancy and fail-
over

Table 3: GRP2602/GRP2602P/GRP2602W/GRP2602G Technical Specifications
HD audio Yes, HD handset and speakerphone with support for wideband audio
Base Stand Yes, 1 angle positions available
Wall Mountable Yes, (*wall mount sold separately)
QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES
encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot
Multi-language English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese, Russian,
Croatian, Greek, and more
Upgrade/Provisioning Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR-069 or AES
encrypted XML configuration file
Power & Green Energy
Efficiency
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA;
PoE: IEEE802.3af Class 1, 3.84W; IEEE802.3az (EEE) (GRP2602P Only)
Physical Dimension: 208mm (L) x 180mm (W) x 63.4mm (H) (with handset)
Unit weight: 670g; Package weight:830g (880g for GRP2602)
Temperature and
Humidity Operation: 0°C to 40°C Storage: -10°C to 60°C Humidity: 10% to 90% Non-condensing
Package Content GRP2602 phone, handset with cord, base stand, universal power supply (GRP2602/GRP2602W
only), network cable, Quick Installation Guide
Compliance
FCC: Part 15 Class B; FCC Part 68 HAC;
CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1;
RCM: AS/NZS CISPR32; AS/NZS 62368.1; AS/CA S004;
IC: ICES-003; CS-03;
Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, SNMP, 802.1x, TLS,
SRTP, IPV6
Network Interfaces Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports, integrated PoE (GRP2603P only)
Graphic Display 132 x 64 backlit graphical LCD display
Feature Keys
3 SIP account keys with dual-color LED, 4 XML programmable context sensitive soft keys, 5
(navigation, menu) keys. 9 dedicated function keys for: MESSAGE(with LED indicator), TRANSFER,
HOLD, HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL-
Voice Codec Support for G7.29A/B, G.711µ/a-law, G.726, G.722(wide-band),G723,iLBC, OPUS, in-band, and
out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC, AGC
Auxiliary Ports RJ9 headset jack (allowing EHS with Plantronics & Jabra &Sennheiser headsets)
Telephony Features Hold, transfer, forward, 4-way conference, call park, call pickup, shared-call-
appearance(SCA)/bridged-line-appearance(BLA), downloadable phonebook (XML, LDAP, up to
2000 items), call waiting, call log (up to 800 records), off-hook auto dial, auto answer, click-to-dial,

Table 4: GRP2603/GRP2603P Technical Specifications
flexible dial plan, hot-desking, personalized music ringtones and music on hold, server
redundancy and fail-over
HD audio Yes, HD handset and speakerphone with support for wideband audio
Base Stand Yes, 2 angle positions available
Wall Mountable Yes, (*wall mount sold separately)
QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES
encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot
Multi-language English, Chinese, Korean, Japanese, German, Italian, French, Spanish, Portuguese, Russian,
Croatian, Greek and more
Upgrade/Provisioning Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR-069 or AES
encrypted XML configuration file
Power & Green Energy
Efficiency
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA;PoE: IEEE802.3af
Class 1, 3.84W; IEEE802.3az (EEE) (GRP2603P Only)
Physical Dimension: 214mm (L) x 206mm (W) x 68mm (H) (with handset)
Unit weight: 780g; Package weight: 1090g for GRP2603P &1140g for GRP2603
Temperature and
Humidity Operation: 0°C to 40°C Storage: -10°C to 60°C Humidity: 10% to 90% Non-condensing
Package Content GRP2603 phone, handset with cord, base stand, universal power supply (GRP2603 only), network
cable, Quick Installation Guide
Compliance
FCC: Part 15 Class B; FCC Part 68 HAC;
CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1;
RCM: AS/NZS CISPR32; AS/NZS 62368.1; AS/CA S004;
IC: ICES-003; CS-03;
Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, ARP, ICMP, DNS(A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR-069, SNMP, 802.1x, TLS,
SRTP, IPV6
Network Interfaces Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports, integrated PoE (GRP2603P only)
Graphic Display 132 x 64 backlit graphical LCD display
Feature Keys
3 SIP account keys with dual-color LED, 4 XML programmable context sensitive soft keys, 5
(navigation, menu) keys. 9 dedicated function keys for: MESSAGE(with LED indicator),
TRANSFER, HOLD, HEADSET, MUTE, SEND/REDIAL, SPEAKERPHONE, VOL+, VOL-
Voice Codec Support for G7.29A/B, G.711µ/a-law, G.726, G.722(wide-band),G723,iLBC, OPUS, in-band, and
out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, AEC, CNG, PLC, AGC
Auxiliary Ports RJ9 headset jack (allowing EHS with Plantronics & Jabra & Sennheiser headsets)

Table 5: GRP2604/GRP2604P Technical Specifications
GETTING STARTED
This chapter provides basic installation instructions including the list of the packaging contents and information for obtaining
the best performance with the GRP260X phone.
Equipment Packaging
Telephony Features Hold, transfer, forward, 4-way conference, call park, call pickup, shared-call-
appearance(SCA)/bridged-line-appearance(BLA), downloadable phonebook (XML, LDAP, up to
2000 items), call waiting, call log (up to 800 records), off-hook auto dial, auto answer, click-to-
dial, flexible dial plan, hot-desking, personalized music ringtones and music on hold, server
redundancy and fail-over
HD audio Yes, HD handset and speakerphone with support for wideband audio
Base Stand Yes, 2 angle positions available
Wall Mountable Yes, (*wall mount sold separately)
QoS Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES
encrypted configuration file, SRTP, TLS, 802.1x media access control, secure boot
Multi-language English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, Chinese, Korean,
Japanese, Greek and more
Upgrade/Provisioning Firmware upgrade via FTP/TFTP / HTTP / HTTPS, mass provisioning using GDMS/TR-069 or AES
encrypted XML configuration file
Power & Green Energy
Efficiency
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA;PoE: IEEE802.3af
Class 2, 3.84W-6.49W; IEEE802.3az (EEE) (GRP2604P Only)
Physical Dimension: 208mm (L) x 180mm (W) x 63.4mm (H) (with handset)
Unit weight: 670g; Package weight:830g (880g for GRP2602)
Temperature and
Humidity Operation: 0°C to 40°C Storage: -10°C to 60°C Humidity: 10% to 90% Non-condensing
Package Content GRP2604 phone, handset with cord, base stand, universal power supply (GRP2604 only), network
cable, Quick Installation Guide
Compliance
FCC: Part 15 Class B; FCC Part 68 HAC;
CE: EN 55032; EN 55035; EN 61000-3-2; EN 61000-3-3; EN 62368-1;
RCM: AS/NZS CISPR32; AS/NZS 62368.1; AS/CA S004;
IC: ICES-003; CS-03;
GRP260X
●1 x GRP260X Main Case.
●1 x Handset.
●1 x Phone Stand.
●1 x Ethernet Cable.

Figure 1: GRP260X Package Content
GRP260X Phone Setup
The GRP260X phones can be installed on the desktop using the phone stand or attached to the wall using the slots for wall
mounting.
Figure 2: Phone Stand and Mounting Slots on the GRP260X
Using the Phone Stand
For installing the phone on the table with the phone stand, attach the phone stand to the bottom of the phone where there is
a slot for the phone stand. (Upper half, bottom part).
Using the Slots for Wall Mounting
1. Attach the wall mount spacers to the slot for wall mount spacers on the back of the phone.
2. Attach the phone to the wall via the wall mount hole.
3. Pull out the tab from the handset cradle (See figure below).
4. Rotate the tab and plug it back into the slot with the extension up to hold the handset while the phone is mounted on the
wall (see figure below).
●1 x Power Adapter (Except for GRP260xP).
●1 x Phone cord.
●1 x Quick Installation Guide.
Note
Check the package before installation. If you find anything missing, contact your system administrator.

Figure 3: Tab on the Handset Cradle
Connecting the GRP260X
To set up the GRP260X, follow the steps below:
1. Connect the handset and main phone case with the phone cord.
2. Connect the LAN port of the phone to the RJ-45 socket of a hub/switch or a router (LAN side of the router) using the
Ethernet cable.
3. Connect the 5V DC output plug to the power jack on the phone; plug the power adapter into an electrical outlet. If a PoE
switch is used in step 3, this step could be skipped (For GRP260xP/G).
4. The LCD will display the Grandstream logo. Before continuing, please wait for the date/time display to show up.
5. Using the phone embedded web server or keypad configuration menu, you can further configure the phone using either a
static IP or DHCP.
Using Wi-Fi (GRP2602W only):
– On the LCD menu, navigate to “Settings → Wi-Fi settings” and enable Wi-Fi.
– Select “Wi-Fi Network” and GRP2602W will automatically start scanning within the range.
– A list of Wi-Fi networks will be displayed. Select the desired network, and if required, enter the correct password to connect.
– Users can add and connect to a hidden network by accessing “Wi-Fi” Network” and then press on Add softkey . Then
enter the Network’s information.
Notes:
When the GPR2602W is not connected to any network (including Ethernet and Wi-Fi), a prompt interface will pop up to notify
users about it. Users can quickly enter the “Wi-Fi Network” page by pressing on the Wi-Fi softkey.
For easy deployment, The GRP2602W is preconfigured out of the box to connect to a default SSID named wp_master with a
password (WPA/WPA2 PSK) equal to wp!987@dmin, users can adapt these settings from the web UI as well to make it easier
for deployment on customer site.
The QR code of SSID can be displayed to share with cellphones and other devices.

Figure 4: GRP260X Back Side View
Configuration via Keypad
To configure the LCD menu using the phone’s keypad, follow the instructions below:
Enter MENU options. When the phone is in idle, press the round MENU button or Menu Softkey to enter the
configuration menu.
Navigate to the menu options. Press the arrow keys UP/DOWN keys to navigate in the menu options.
Enter/Confirm selection. Press the round MENU to enter the selected option.
Exit. Press Return Softkey to exit to the previous menu.
Return to Home page.
The MENU options are listed in the following table.
Status
Displays account status, network status, software version number and Hardware
• Network status.
Press to enter the sub menu for IP setting information (DHCP/Static IP/PPPoE), IPv4 address, IPv6
address, MAC address, Subnet Mask, Gateway, DNS and NTP servers.
• Account status.
Shows Account registration status.
• System Status
Press to enter the sub menu for Hardware Information, Software version and IP Geographic
Information.
Settings Settings sub menu contains the following options:
• Account Settings
Enable/Disable SIP account, Configures Account Name, SIP server’s address, SIP User ID, SIP Auth
ID, SIP Password, Outbound Proxy, and Voice Mail Access Number.
• Call Settings
Enable/DisableDND, Enable DisableAuto Answerfor SIP account, Enable/DisableCall Forward
(Forward All/Busy/No Answer).
• Basic Settings 🡪Sounds
Configures account ringtone and adjusts volume settings by pressing left/right arrow key.
• Date Time
Adjusts Time and Date displaying format.
• Time Zone
Choose your Time Zone from the list by scrolling with UP/DOWN keys.
• Language
Selects the language to be displayed on the phone’s LCD. Users could select Automatic for local
language based on IP location if available. By default, it is Auto.
• Keypad Lock
Enables/Disables Keypad lock. Users can choose the Keypad Lock type (All Keys/Functional keys)
and set up the lock password. If users enabled Keypad lock without configuring a password; They
can unlock the phone by pressing on the unlock softkey.

Table 7: Configuration Menu
The following picture shows the keypad MENU configuration flow:
• Headset Type
Choose the headset type of the headset connect to the phone. Users could choose Normal,
Plantronics EHS, Jabra EHS, Sennheiser EHS.
• Advanced settings 🡪Upgrade
Check for upgrade by contacting the firmware upgrade server.
• Syslog
Configures Syslog level, Transport protocol and Syslog Server’s address.
•Security
Enables disables Web and SSH access.
• Alternative Firmware
Press softkey to switch between the dual firmware versions loaded to the phone. The phone will
reboot with the chosen version.
• Factory Reset:
Perform Factory reset to the phone. All device configuration and user data will be lost after factory
reset.
• Ethernet Settings 🡪Internet Protocol
Selects Prefer IPv4 / Prefer IPv6 / IPv4 only or IPv6 only. The default setting is “IPv4 only”.
• IPv4 Setting
Selects IP mode (DHCP/Static IP/PPPoE); Configures PPPoE account ID and password; Configures
static IP address, Netmask, Gateway, Preferred DNS server.
• IPv6 Setting
Selects IP mode (DHCP/Static IP); Configures static IP address, IPv6 Prefix (64 bits), IPv6 Preferred
DNS server.
• VLAN Setting
Enables CDP/LLDP, Configures LLDP TX interval, Enables Manual VLAN Configuration, Configures
Layer 2 QoS 802.1q (VLAN ID/Priority).
• Wi-Fi Settings (GRP2602W only) 🡪Wi-Fi
Enables/disables Wi-Fi;
• Wi-Fi Band
Choose Wi-Fi band (2G , 5G or 2G&5G).
• Wi-Fi Network
Scans and displays available Wi-Fi networks.
Messages
• Instant Messages
Displays received instant messages
• Voicemail
Displays voicemail message information in the following format: Normal/Urgent
Call History Displays Local Call Logs: “All” Calls / “Missed” Calls/ “Dialed” Calls/ “Answered” Calls.
Contacts
Contactssub menu includes the following options:
• Local Phonebook
• Local Group
• LDAP
User could configure phonebooks/groups options here, download phonebook XML to the phone and
search and dial from the local phonebook and search and dial from LDAP phonebook.
Factory Functions
Factory Functions sub menu includes the following options:
• Audio Loopback
Speak to the phone using speaker/handset/headset. If you can hear your voice, your audio is
working fine. Press Return Softkey to exit audio loopback mode.
• Keypad/Led diagnosis
All LEDs will light up Press all the available keys on the phone. The LCD will display the name for the
keys to be pressed to finish the keyboard diagnostic mode. Press Hook button to exit.
• Certification Verification
Verify the certificate loaded on the phone.
Reboot Reboots the phone.

Figure 5: GRP260x LCD settings
Configuration via Web Browser
The GRP260X embedded Web server responds to HTTP/HTTPS GET/POST requests. Embedded HTML pages allow a user to
configure the IP phone through a Web browser such as Google Chrome, Mozilla Firefox, and Microsoft’s IE. To access the Web
GUI:
1. Connect the computer to the same network as the phone.
2. Make sure the phone is turned on and shows its IP address. You may check the IP address by pressing the Up-arrow
button when the phone is in an idle state.
3. Open a Web browser on your computer.
4. Enter the phone’s IP address in the address bar of the browser.
5. Enter the administrator’s login and password to access the Web Configuration Menu.
There are two default passwords for the login page:
Notes
The computer must be connected to the same sub-network as the phone. This can be easily done by connecting the computer
to the same hub or switch as the phone is connected. In absence of a hub/switch (or free ports on the hub/switch), please
connect the computer directly to the PC port on the back of the phone.
If the phone is properly connected to a working Internet connection, the IP address of the phone will display in
MENU🡪Status🡪Network Status. This address has the format: xxx.xxx.xxx.xxx, where xxx stands for a number from 0-255. Users
will need this number to access the Web GUI. For example, if the phone has an IP address of 192.168.40.154, please enter
“http://192.168.40.154” in the address bar of the browser.

When changing any settings, always SUBMIT them by pressing the “Save” or “Save and Apply” button at the bottom of the
page. If the change is saved only but not applied, after making all the changes, click on the “APPLY” button on top of the page
to submit. After submitting the changes in all the Web GUI pages, reboot the phone to have the changes take effect if
necessary (Most of the options do not require a reboot).
Saving Configuration Changes
After users make changes to the configuration, press the “Save” button will save but not apply the changes until the “Apply”
button on the top of the web GUI page is clicked. Or users could directly press the “Save and Apply” button.
Rebooting from Remote Locations
Press the “Reboot” button on the top right corner of the web GUI page to reboot the phone remotely. The web browser will
then display a reboot message. Wait for about 1 minute to log in again.
CONFIGURATION GUIDE
This section describes the options in the phone’s Web GUI. As mentioned, you can log in as an administrator or an end-user.
Status: Displays the Account status, Network status, and System Info of the phone.
Account: To configure the SIP account.
Phone Settings: To configure phone general settings, Call Settings, Ringtone, and Multicast Paging.
Network Settings: To configure network settings.
Programmable keys: Configures idle and call screen softkeys And the Multi-purpose keys settings for the GRP2604 only.
System Settings: Configures Time and Language settings, Security Settings, Preferences, TR-069.
Maintenance: To configure upgrading and provisioning, System Diagnostics, Outbound Notifications, and Voice
monitoring.
Application: Configures Web Service settings, Contacts, LDAP, and Call History.
External Service: Configures GDS Settings, Call Center, BroadSoft XSI.
Status Page Definitions
User Level User Password Web Pages Allowed
End User Level user 123 Only Status and Basic
Settings
Administrator
Level admin Random password available on the sticker at the back of the unit. Browse all pages
Status 🡪 Account Status
Account
Account index.
●For GRP2601/GRP2601P: 2 SIP accounts
●For GRP2602/GRP2602P/GRP2602W: 4 SIP accounts
●For GRP2603/GRP2603P: 6 SIP accounts
●For GRP2604/GRP2604P: 6 SIP accounts
SIP User ID Displays the configured SIP User ID for the account.
SIP Server Displays the configured SIP Server address, URL or IP address, and port of the SIP server.

SIP Registration Displays SIP registration status for the SIP account.
Status 🡪 Network Status
MAC Address Global unique ID of device, in HEX format. The MAC address will be used for provisioning and can
be found on the label coming with original box and on the label located on the back of the device.
IP Setting The configured address type: DHCP, Static IP or PPPoE.
IPv4 Address The IPv4 address obtained on the phone.
IPv6 Address The IPv6 address obtained on the phone.
OpenVPN® IP The OpenVPN® IP obtained on the phone.
Subnet Mask The subnet mask obtained on the phone.
Gateway The gateway address obtained on the phone.
DNS Server 1 The DNS server address 1 obtained on the phone.
DNS Server 2 The DNS server address 2 obtained on the phone.
PPPoE Link Up PPPoE connection status.
NAT Type The type of NAT connection used by the phone.
NAT Traversal Display the status of NAT connection for each account on the phone.
Status 🡪 System Info
Product Model Product model of the phone.
Part Number Product part number.
Software Version
●Boot:boot version number.
●Core:core version number.
●Base:base version number.
●Prog:program version number. This is the main firmware release number, which is always used
for identifying the software system of the phone.
●Locale:locale version number.
IP Geographic
Information
●Language:displaying language.
●Recommend Time Zone:represent the time zone detected by IP address
System Up Time System up time since the last reboot.
System Time Current system time on the phone system.
System Time-Zone Displays the time zone that is configured by user
Service Status GUI, Phone and CPE service status.

Table 8: Status page definitions
Account Page Definitions
System Information Download system information
User Space Shows the percentage of the user space used and the status of the Database
Core Dump Shows the status of the core dump and the core dump files generated if any. It also gives the ability
to generate GUI/Phone core dump files manually.
Special Feature OpenVPN® Support:displaying if the phone supports OpenVPN®.
Account x 🡪 General Settings
Account Register
Account Active Indicates whether the account is active.
The default setting is “No”.
Account Name The name associated with each account to be displayed on the LCD. (e.g.,
MyCompany)
SIP Server The URL or IP address, and port of the SIP server. This is provided by your VoIP
service provider (e.g., sip.mycompany.com, or IP address)
Secondary SIP Server The URL or IP address, and port of the SIP server. This will be used when the
primary SIP server fails
SIP User ID User account information, provided by your VoIP service provider.
SIP Authentication ID SIP service subscriber’s Authenticate ID used for authentication. It can be identical
to or different from the SIP User ID.
SIP Authentication Password
The account password required for the phone to authenticate with the SIP server
before the account can be registered.
After it is saved, this will appear as hidden for security purpose.
Name The SIP server subscriber’s name (optional) that will be used for Caller ID display
(e.g., John Doe).
TEL URI
If the phone has an assigned PSTN telephone number, this field should be set to
“user=phone”. A “user=phone” parameter will be attached to the Request-URI and
“To” header in the SIP request to indicate the E.164 number. If set to “Enable”, “tel:”
will be used instead of “sip:” in the SIP request.
Voice Mail Access Number Allows users to access voice messages by pressing the MESSAGE button on the
phone. This value is usually the VM portal access number.
BLF Server Configures the BLF server (optional) used for SUBSCRIBE requests.
Account Display When set to “Username”, the LCD will display the Username if it is not empty and
when set to “User ID”, the LCD will display the User ID if it is not empty.
UCM User Password Input UCM user login password to connect UCM user settings.

Network Settings
DNS Mode
This parameter controls how the Search Appliance looks up IP addresses for
hostnames. If “Use Configured IP” is selected, please fill in Primary IP, Backup IP 1
and Backup IP 2.
●A Record
●SRV
●NAPTR/SRV
●Use Configured IP
Max Number Of Sip Request Retries
Sets the maximum number of retries for the device to send requests to the server. In
DNS SRV configuration, if the destination address does not respond, all request
messages are resent to the same address according to the configured retry times.
Valid range: 1-10.
DNS SRV Failover Mode
Configures the preferred IP mode for DNS SRV. If set to “default”, the first IP from
the query result will be applied. If set to “Saved one until DNS TTL”, previous IP will
be applied before DNS timeout is reached. If set to “Saved one until no response”,
previous IP will be applied even after DNS timeout until it cannot respond.
●Default
If the option is set with “default”, it will again try to send register messages to one IP
at a time, and the process repeats.
●Saved one until DNS TTL
If the option is set with “Saved one until DNS TTL”, it will send register messages to
the previously registered IP first. If no response, it will try to send one at a time for
each IP. This behavior lasts if DNS TTL (time-to-live) is up.
●Saved one until no responses
If the option is set with “Saved one until no responses”, it will send registered
messages to the previously registered IP first, but this behavior will persist until the
registered server does not respond.
●Failback follows failback expiration timer
If "Failback follows failback expiration timer" is selected, the device will send all SIP
messages to the current failover SIP server or Outbound Proxy until the failback
timer expires.
Failback Expiration (m)
Specifies the duration (in minutes) since failover to the current SIP server or
Outbound Proxy before making failback attempts to the primary SIP server or
Outbound Proxy.
Register Before DNS SRV Failover Configures whether to send REGISTER requests to the failover SIP server or
Outbound Proxy before sending INVITE requests in the event of a DNS SRV failover.
Primary IP Configures the primary IP address where the phone sends DNS query to when “Use
Configured IP” is selected for DNS mode.
Backup IP 1 Configures the backup IP 1 address where the phone sends DNS query to when “Use
Configured IP” is selected for DNS mode.
Backup IP 2 Configures the backup IP 2 address where the phone sends DNS query to when “Use
Configured IP” is selected for DNS mode.
NAT Traversal Configures whether NAT traversal mechanism is activated. Please refer to user
manual for more details.
If set to “STUN” and STUN server is configured, the phone will route according to the
STUN server. If NAT type is Full Cone, Restricted Cone or Port-Restricted Cone, the

phone will try to use public IP addresses and port number in all the SIP&SDP
messages.
The phone will send empty SDP packet to the SIP server periodically to keep the
NAT port open if it is configured to be “Keep-alive”. Configure this to be “No” if an
outbound proxy is used. “STUN” cannot be used if the detected NAT is symmetric
NAT. Set this to “VPN” if OpenVPN is used.
Support rport (RFC3581)
Configures to use symmetric response routing. If it is used, the "rport" field
will be added to the Via header field in the SIP Request, and the information will be
extracted from the SIP 200OK Response for SIP Register to rewrite the SIP Contact
information and apply it in subsequent SIP Requests.
Proxy-Require A SIP Extension to notify the SIP server that the phone is behind a NAT/Firewall.
Use SBC Configures whether a SBC server is used. Note: If enabled, make sure an outbound
proxy is set up.
Account x 🡪 SIP Settings
Basic Settings
SIP Registration Selects whether the phone will send SIP Register messages to the proxy/server. The
default setting is “Enabled”.
UNREGISTER on Reboot
●If set to “No”, the phone will not unregister the SIP user’s registration information
before new registration.
●If set to “All”, the SIP Contact header will use “*” to clear all SIP user’s
registration information.
●If set to “Instance”, the phone only needs to clear the current SIP user’s info.
REGISTER Expiration
Specifies the frequency (in minutes) in which the phone refreshes its registration
with the specified registrar.
The maximum value is 64800 minutes (about 45 days). The default value is 60
minutes.
SUBSCRIBE Expiration
Specifies the frequency (in minutes) in which the phone refreshes its subscription
with the specified registrar.
The maximum value is 64800 minutes (about 45 days). The default value is 60
minutes.
Re-Register before Expiration Specifies the time frequency (in seconds) that the phone sends re-registration
request before the Register Expiration. The default value is 0.
Registration Retry Wait Time Specifies the interval to retry registration if the process is failed. The valid range is 1
to 3600. The default value is 20 seconds.
Add Auth Header on Initial REGISTER If enabled, the phone will add Authorization header in initial REGISTER request.
Default is “Disabled”.
Enable OPTIONS Keep Alive
Configures whether to enable SIP OPTIONS to track account registration status. If
enabled, the phone will send periodic OPTIONS messages to server to track the
connection status with the server.
Default is “Disabled”.
OPTIONS Keep Alive Interval
Configures the time interval the phone sends OPTIONS message to the server. If set
to 30 seconds, it means the phone will send an OPTIONS message to the server
every 30 seconds.

OPTIONS Keep Alive Max Lost Configures the maximum number of times the phone will try to send OPTIONS
message consistently to server without receiving a response. If set to “3”, the phone
will send OPTIONS message 3 times. If no response from the server, the phone will
re-register.
SUBSCRIBE for MWI
When set to “Yes”, a SUBSCRIBE for Message Waiting Indication will be sent
periodically.
The default setting is “No”.
SUBSCRIBE for Registration When set to “Yes”, a SUBSCRIBE for Registration will be sent out periodically.
The default setting is “No”.
Use Privacy Header
Configures whether the “Privacy Header” is present in the SIP INVITE message.
●Default:the phone will add “Privacy Header” when special feature is not “Huawei
IMS”.
●Yes:the phone will always add “Privacy Header”.
●No:the phone will not add “Privacy Header”.
The default setting is “default”.
Use P-Preferred- Identity Header
Configures whether the “P-Preferred-Identity Header” is present in the SIP INVITE
message.
●Default:the phone will add “P-Preferred-Identity header” when special feature is
not “Huawei IMS”.
●Yes:the phone will always add “P-Preferred-Identity header”.
●No:the phone will not add “P-Preferred-Identity header”.
Use X-Grandstream-PBX Header Configures to use X-Grandstream-PBX header in SIP request.
Default setting is “Yes”.
Use P-Access-Network-Info Header Configures to use P-Access-Network-Info header in SIP request.
Default setting is “Yes”.
Use P-Emergency-Info Header Configures to use P-Emergency-Info header in SIP request.
Default setting is “Yes”.
Use P-Asserted-Identity Header Configure whether the "P-Asserted-Identity Header" is present in the SIP REGISTER
message.
Use P-Early-Media Header Configure if the "P-Early-Media Header" support is enabled.
Use Zoom E911 X-switch-info SIP
Header
Configure whether the "Zoom E911 X-switch-info SIP Header" is present in the SIP
REGISTER message.
Use MAC Header
●IfRegister Only, all outgoing SIP message will include the MAC header.
●IfYes to all SIP, all outgoing SIP messages will include the MAC header.
●IfNo, the phone’s MAC header will not be included in any outgoing SIP messages.
The default setting is “No”.
Add MAC in User-Agent
●IfYes except REGISTER, all outgoing SIP messages will include the phone’s MAC
address in the User-Agent header, except for REGISTER and UNREGISTER.
●IfYes to All SIP, all outgoing SIP messages will include the phone’s MAC address
in the User-Agent header.
●If No, the phone’s MAC address will not be included in the User-Agent header in
any outgoing SIP messages.
The default setting is “No”.

SIP Transport Selects the network protocol used for the SIP transport.
The default setting is “UDP”.
Enable TCP Keep-alive Configures whether to enable TCP Keep-alive for the TCP connection between the
terminal and the SIP server.
SIP Listening Mode
Configures whether or not to listen to multiple SIP protocols.
●If set to “Dual“, phone will listen to TCP when UDP is selected.
●If set to “Dual (Secured)“, phone will listen to TLS/TCP when UDP is selected. If
“TCP” or “TLS/TCP” is selected, UDP will be listened too.
●If set to “Dual (BLF Enforced)“, phone will try to enforce BLF subscriptions to use
TCP protocol by adding ‘transport=tcp’ to the Contact header.
The default setting is “Transport Only”.
Local SIP Port Configures the local SIP port used to listen and transmit.
SIP URI Scheme when using TLS Specifies if “sip” or “sips” will be used when TLS/TCP is selected for SIP Transport.
The default setting is “sips”.
Use Actual Ephemeral Port in
Contact with TCP/TLS
Configures whether the actual ephemeral port in contact with TCP/TLS will be used
when TLS/TCP is selected for SIP Transport.
The default setting is “No”.
Support SIP Instance ID Configures whether SIP Instance ID is supported or not.
The default setting is “Yes”.
SIP T1 Timeout
SIP T1 Timeout is an estimate of the round-trip time of transactions between a
client and server. If no response is received the timeout is increased and request re-
transmit retries would continue until a maximum amount of time define by T2. The
default setting is 0.5 seconds.
SIP T2 Timeout
SIP T2 Timeout is the maximum retransmit time of any SIP request messages
(excluding the INVITE message). The re-transmitting and doubling of T1 continues
until it reaches the T2 value. Default is 4 seconds.
Outbound Proxy Mode
Configures whether to put the Outbound Proxy in the Route header, or if SIP
messages should always be sent to Outbound Proxy.
1. In route
2. Not in route
3. Always send to
Default is “in route”.
Enable 100rel
When enabled, the 100rel tag is appended to the value of the Supported header of
the initial signaling messages.
The default setting is “No”.
Use Route Set in Notify (Follow RFC
6665)
Configures whether to use route set in NOTIFY (follow RFC 6665).
●If enabled, the Request URI of the refresh subscription will use the URI in the
received NOTIFY Contact (RFC 6665).
●If disabled, the URI in the previously subscribed 200 OK Contact will be used.
Session Timer
Enable Session Timer Configures whether to enable session timer function. It enables SIP sessions to be
periodically “refreshed” via a SIP request (UPDATE, or re-INVITE). If there is no
refresh via an UPDATE or re-INVITE message, the session will be terminated once
the session interval expires. If set to “Yes”, the phone will use the related

parameters when sending session timer according to “Session Expiration”. If set to
“No”, session timer will be disabled.
The default setting is “No”.
Session Expiration
Session Expiration is the time (in seconds) where the session is considered timed
out, provided no successful session refresh transaction occurs beforehand.
The default setting is 180. The valid range is from 90 to 64800.
Min-SE The minimum session expiration (in seconds). The default value is 90 seconds. The
valid range is from 90 to 64800.
Caller Request Timer
If set to “Yes” and the remote party supports session timers, the phone will use a
session timer when it makes outbound calls.
The default setting is “No”.
Callee Request Timer
If set to “Yes” and the remote party supports session timers, the phone will use a
session timer when it receives inbound calls.
The default setting is “No”.
Force Timer
If set to “Yes”, the phone will use the Session Timer even if the remote party does
not support this feature. Otherwise, Session Timer is enabled only when the remote
party supports it.
The default setting is “No”.
UAC Specify Refresher
As a caller, select UAC to use the phone as the refresher, or select UAS to use the
callee or proxy server as the refresher. When set to “Omit”, the refresh object is not
specified.
The default setting is “UAC”.
UAS Specify Refresher
As a callee, select UAC to use caller or proxy server as the refresher, or select UAS
to use the phone as the refresher.
The default setting is “UAC”.
Force INVITE Select “Yes” to force using the INVITE method to refresh the session timer.
The default setting is “No”.
Account x 🡪 Codec Settings
Audio
Preferred Vocoder
(Choice 1 – 8)
Multiple vocoder types are supported on the phone, the vocoders in the list is a
higher preference. Users can configure vocoders in a preference list that is included
with the same preference order in SDP message.
Codec Negotiation Priority
Configures the phone to use which codec sequence to negotiate as the callee. When
set to “Caller”, the phone negotiates by SDP codec sequence from received SIP
Invite. When set to “Callee”, the phone negotiates by audio codec sequence on the
phone. The default setting is “Callee”.
Use First Matching Vocoder in 200OK
SDP
When set to “Yes”, the device will use the first matching vocoder in the received
200OK SDP as the codec. The default setting is “No”.
iLBC Frame Size Selects iLBC packet frame size. Users can choose from 20ms and 30ms. The default
setting is “30ms”.
iLBC Payload Type Specifies iLBC payload type. Valid range is 96 to 127. Cannot be the same as Opus
or DTMF payload type. Valid range is 96 to 127. The default setting is “97”.