Grandstream Networks GXP16 Series User manual

Grandstream Networks, Inc.
GXP16XX Series
GXP16XX – User Guide

GXP16xx Series - User Guide
Thank you for purchasing Grandstream Small Business IP phone GXP1610/GXP1615/GXP1620/ GXP1625/GXP1628/GXP1630.
GXP16xx series is a next generation small-to-medium business IP phone: the GXP1620/GXP1625 features 2 lines with 2 SIP
accounts, superior HD wideband audio, 132 x 48 backlit graphical LCD; the GXP1610/GXP1615 supports 2 lines with 2 SIP
accounts, 132 x 48 graphical LCD; GXP1630 supports 3 lines with 3 SIP accounts, 132×64 backlit graphical LCD. The
GXP1610/GXP1615/ GXP1620/GXP1625/GXP1628/GXP1630 delivers rich features of 3 XML programmable context-sensitive
softkeys, dual network ports with PoE (GXP1615 / GXP1625 / GXP1628 / GXP1630 only), EHS (Electronic Hook-Switch) with
Plantronics headsets, 3-ways conference on GXP1610/GXP1615/GXP1620/GXP1625/ GXP1628 and up to 4-way conference on
GXP1630, superb full-duplex hands-free speakerphone with advanced acoustic echo cancellation, advanced security
protection for privacy, and compatible with Grandstream UCM Features. It is a perfect choice for small-to-medium businesses
looking for a high quality, feature rich IP phone with affordable cost.
PRODUCT OVERVIEW
Caution
Changes or modifications to this product not expressly approved by Grandstream, or operation of this product in any way other
than as detailed by this User Manual, could void your manufacturer warranty.
Warning
Please do not use a different power adaptor with the GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 as it may cause
damage to the products and void the manufacturer warranty.
This document is subject to change without notice. The latest electronic version of this user manual is available for download
here: https://www.grandstream.com/support
FCC Caution
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to
operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not
cause harmful interference, and (2) this device must accept any interference received, including interference that may cause
undesired operation.
Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be
determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.

Feature Highlights (GXP1610/GXP1615/GXP1620/GXP1625/GXP1628)
132*48-pixel backlit graphical LCD display (GXP1610/GXP1615 do not support backlit).
2 dual-color line keys, 3 XML programmable context-sensitive soft keys, 8 BLF keys (GXP1628 only), 3-way conference,
multi-language support.
HD wideband audio (GXP1620/GXP1625/GXP1628 only), superb full-duplex hands-free speakerphone with advanced
acoustic echo cancellation and excellent double-talk performance.
LDAP Directory with the option to display all contacts on the LCD Menu.
Large phonebook (up to 1000 contacts) and call history (up to 200 records).
Automated personal information service, personalized music ring tone/ring back tone, flexible customizable screen
content & format using XML, and advanced Web and enterprise applications.
Dual switched 10/100 Mbps ports on GXP1610/GXP1615/GXP1620/GXP1625, dual switched auto-sensing 10/100/1000
Mbps Ethernet ports on GXP1628, integrated PoE on GXP1615/GXP1625/GXP1628.
Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for advanced security
protection, 802.1x for media access control.
Perfectly compatible with Grandstream UCM Features.
Innovative UI design (easy and useable multi-language support).
Use with Grandstream UCM6xxx series IP PBX appliance for Zero-Config provisioning, 1-touch call recording and more.
Feature Highlights (GXP1630)
132*64-pixel backlit graphical LCD display.
3 dual-color line keys, 3 XML programmable context-sensitive soft keys, 8 BLF keys, 4-way conference, multi-language
support.
HD wideband audio, superb full-duplex hands-free speakerphone with advanced acoustic echo cancellation and excellent
double-talk performance.
LDAP Directory with the option to display all contacts on the LCD Menu.
Large phonebook (up to 1000 contacts) and call history (up to 200 records).
Automated personal information service, personalized music ring tone/ring back tone, flexible customizable screen
content & format using XML, and advanced Web and enterprise applications.
Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports with integrated PoE.
Automated provisioning using TR-069 or encrypted XML configuration file, SRTP and TLS for advanced security
protection, 802.1x for media access control.
Perfectly compatible with Grandstream UCM Features.
Innovative UI design (easy and useable multi-language support).
Use with Grandstream UCM6xxx series IP PBX appliance for Zero-Config provisioning, 1-touch call recording and more.
GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 Technical Specifications
Protocols
/Standar
ds
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, FTP/FTPS, ARP/RARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP
Network
Interface
s
Dual switched 10/100 Mbps ports, integrated PoE (GXP1615 only)
Graphic
Display 132*48LCD display

Feature
Keys
2 line keys with dual-color LED and 2 SIP accounts. 3 XML programmable context sensitive soft keys. 5
(navigation, menu) keys. 13 dedicated function keys for PAGE/INTERCOM, PHONEBOOK, MESSAGE, HOME,
HOLD, RECORD, MUTE, HEADSET, TRANSFER, CONFERENCE, SEND and REDIAL, SPEAKERPHONE, VOLUME
Voice
Codecs
Support for G.711µ/a, G.722 (wide-band), G.723.1, G.726-32, G.729 A/B, iLBC, in-band and out-of-band DTMF
(In audio, RFC2833, SIP INFO)
Telephon
y
Features
Hold, transfer, forward (unconditional/no-answer/busy), 3-way conference, call park/pickup, downloadable
phone book (XML, LDAP, up to 1000 items), call waiting, call history (up to 200 records), off-hook auto dial,
auto answer, click-to-dial, flexible dial plan, Hot Desking, personalized music ringtones, server redundancy &
fail-over
Headset
Jack RJ9 headset jack (allowing EHS with Plantronics headsets)
Base
Stand Yes, allow 2 angle positions available, Wall Mountable
QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
Security User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted
configuration file, TLS, SRTP, HTTPS, 802.1x media access control
Multi-
language
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditionalChinese,
Korean, Japanese, and more
Upgrade
/Provisio
ning
Firmware upgrade via TFTP / HTTP / FTP/FTPS /HTTPS, mass provisioning using TR-069 or AES encrypted XML
configuration file
Power &
Green
Energy
Efficienc
y
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA
Temperat
ure and
Humidity
Operation: 0°C to 40°C
Storage: -10°C to 60°C
Humidity: 10% to 90% Non-condensing
Physical
Dimension: 209mm（L）x 184.5mm（W）x 76.2mm（H） (with handset)
Unit Weight: 0.74kgPackage Weight: 1.1kg
Package
Content
GXP1610/GXP1615 phone, handset with cord, base stand, universal power supply, network cable, Quick
Installation Guide, brochure, GPL license
Complian
ce
FCC : Part 15 (CFR 47) Class B
CE : EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1
RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1
Table 1: GXP1610/GXP1615 Technical Specifications

Protoc
ols/Sta
ndards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, FTP/FTPS, ARP/RARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP
Networ
k
Interfac
es
Dual switched 10/100 Mbps ports, integrated PoE (GXP1625 only)
Graphic
alDispl
ay
132*48pixel backlit graphical LCD display
Feature
Keys
2 line keys with dual-color LED and 2 SIP accounts. 3 XML programmable context sensitive soft keys. 5
(navigation, menu) keys. 13 dedicated function keys for MUTE, HEADSET, TRANSFER, CONFERENCE, SEND and
REDIAL, SPEAKERPHONE, VOLUME, PHONEBOOK, MESSAGE, HOLD, PAGE/INTERCOM, RECORD, HOME
Voice
Codecs
Support for G.711µ/a, G.722 (wide-band), G.723 (pending), G.726-32, G.729 A/B, in-band and out-of-band DTMF
(In audio, RFC2833, SIP INFO)
Teleph
ony
Feature
s
Hold, transfer, forward (unconditional/no-answer/busy), call park/pickup, 3-way conference, shared-call-
appearance (SCA) / bridged-line-appearance (BLA), downloadable phone book (XML, LDAP, up to 1000 items),
call waiting, call history (up to 200 records), off-hook auto dial, auto answer, click-to-dial, flexible dial plan, Hot
Desking, personalized music ringtones, server redundancy & fail-over.
Headse
t Jack RJ9 headset jack (allowing EHS with Plantronics headsets)
HD
Audio Yes, HD handset and speakerphone with support for wideband audio
Base
Stand Yes, 2 angle positions available, Wall Mountable
QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
Securit
y
User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted
configuration file, TLS, SRTP, HTTPS, 802.1x media access control
Multi-
langua
ge
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditionalChinese,
Korean, Japanese, and more
Upgrad
e/Provi
sioning
Firmware upgrade via TFTP / HTTP /FTP/FTPS / HTTPS, mass provisioning using TR-069 or AES encrypted XML
configuration file
Power
&
Green
Energy
Efficien
cy
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA
PoE IEEE802.3 afClass 2, 3.84W-6.49W (GXP1625 only)

Temper
ature
and
Humidi
ty
Operation: 0°C to 40°C
Storage: -10°C to 60°C
Humidity: 10% to 90% Non-condensing
Physica
l
Dimension: 209mm（L）x 184.5mm（W）x 76.2mm（H） (with handset)
Unit Weight: 0.73kg Package Weight: 1.1kg
Packag
e
Conten
t
GXP1620/GXP1625 phone, handset with cord, base stand, universal power supply, network cable, Quick
Installation Guide, brochure, GPL license
Compli
ance
FCC : Part 15 (CFR 47) Class B
CE : EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1
RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1
Table 2: GXP1620/GXP1625 Technical Specifications
Protoc
ols/Sta
ndards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, FTP/FTPS, ARP/RARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP
Networ
k
Interfac
es
Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports, integrated PoE
Graphic
alDispl
ay
132 x 48 backlit graphical LCD display
Feature
Keys
2 line keys with dual-color LED and 2 SIP accounts. 3 XML programmable context sensitive soft keys. 5
(navigation, menu) keys. 8 BLF keys. 13 dedicated function keys for PAGE/INTERCOM, PHONEBOOK, MESSAGE,
HOME, HOLD, RECORD, MUTE, HEADSET, TRANSFER, CONFERENCE, SEND and REDIAL, SPEAKERPHONE,
VOLUME
Voice
Codecs
Support for G.711µ/a, G.722 (wide-band), G.723 (pending), G.726-32, G.729 A/B, in-band and out-of-band DTMF
(In audio, RFC2833, SIP INFO)
Teleph
ony
Feature
s
Hold, transfer, forward (unconditional/no-answer/busy), call park/pickup, 3-way conference, shared-call-
appearance (SCA) / bridged-line-appearance (BLA), downloadable phone book (XML, LDAP, up to 1000 items),
call waiting, call history (up to 200 records), off-hook auto dial, auto answer, click-to-dial, flexible dial plan, Hot
Desking, personalized music ringtones, server redundancy & fail-over.
Headse
t Jack RJ9 headset jack (allowing EHS with Plantronics headsets)
HD
Audio Yes, HD handset and speakerphone with support for wideband audio
Base
Stand Yes, 2 angle positions available, Wall Mountable

QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
Securit
y
User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted
configuration file, TLS, SRTP, HTTPS, 802.1x media access control
Multi-
langua
ge
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditionalChinese,
Korean, Japanese, and more
Upgrad
e/Provi
sioning
Firmware upgrade via TFTP / HTTP / FTP/ FTPS / HTTPS, mass provisioning using TR-069 or AES encrypted XML
configuration file
Power
&
Green
Energy
Efficien
cy
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA
PoE IEEE802.3 afClass 2, 3.84W-6.49W
Temper
ature
and
Humidi
ty
Operation: 0°C to 40°C
Storage: -10°C to 60°C
Humidity: 10% to 90% Non-condensing
Physica
l
Dimension: 220.5mm (L) x 192.5mm (W) x 76.0mm (H) (with handset)
Unit weight: 0.8kg; Package weight: 1.2kg
Packag
e
Conten
t
GXP1628 phone, handset with cord, base stand, universal power supply, network cable, Quick Installation Guide,
brochure, GPL license, BLF label cards
Compli
ance
FCC : Part 15 (CFR 47) Class B
CE : EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1
RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1
Table 3: GXP1628 Technical Specifications
Protoc
ols/Sta
ndards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, RTCP-XR, HTTP/HTTPS, FTP/FTPS, ARP/RARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, PPPoE, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, LDAP, TR-069, 802.1x, TLS, SRTP
Networ
k
Interfac
es
Dual switched auto-sensing 10/100/1000 Mbps Ethernet ports, integrated PoE
Graphic
alDispl
ay
132 x 64 backlit graphical LCD display

Feature
Keys
3 line keys with dual-color LED and 3 SIP accounts. 3 XML programmable context sensitive soft keys. 5
(navigation, menu) keys. 8 BLF keys. 13 dedicated function keys for PAGE/INTERCOM, PHONEBOOK, MESSAGE,
HOME, HOLD, RECORD, MUTE, HEADSET, TRANSFER, CONFERENCE, SEND and REDIAL, SPEAKERPHONE,
VOLUME
Voice
Codecs
Support for G.711µ/a, G.722 (wide-band), G.723.1, G.726-32, G.729 A/B, iLBC, in-band and out-of-band DTMF (In
audio, RFC2833, SIP INFO)
Teleph
ony
Feature
s
Hold, transfer, forward (unconditional/no-answer/busy), call park/pickup, 4-ways conference, shared-call-
appearance (SCA) / bridged-line-appearance (BLA), downloadable phone book (XML, LDAP, up to 1000 items),
call waiting, call history (up to 200 records), off-hook auto dial, auto answer, click-to-dial, flexible dial plan, Hot
Desking, personalized music ringtones, server redundancy & fail-over.
Headse
t Jack RJ9 headset jack (allowing EHS with Plantronics headsets)
HD
Audio Yes, HD handset and speakerphone with support for wideband audio
Base
Stand Yes, 2 angle positions available, Wall Mountable
QoS Layer 2 QoS (802.1Q, 802.1P) and Layer 3 (ToS, DiffServ, MPLS) QoS
Securit
y
User and administrator level access control, MD5 and MD5-sess based authentication, 256-bit AES encrypted
configuration file, TLS, SRTP, HTTPS, 802.1x media access control
Multi-
langua
ge
English, German, Italian, French, Spanish, Portuguese, Russian, Croatian, simplified and traditionalChinese,
Korean, Japanese, and more
Upgrad
e/Provi
sioning
Firmware upgrade via TFTP / HTTP / FTP/ FTPS / HTTPS, mass provisioning using TR-069 or AES encrypted XML
configuration file
Power
&
Green
Energy
Efficien
cy
Universal Power Supply Input 100-240VAC 50-60Hz; Output +5VDC, 600mA
PoE IEEE802.3 afClass 2, 3.84W-6.49W
Temper
ature
and
Humidi
ty
Operation: 0°C to 40°C
Storage: -10°C to 60°C
Humidity: 10% to 90% Non-condensing
Physica
l
Dimension: 222.5mm (L) x 192.5mm (W) x 76.0mm (H) (with handset)
Unit weight: 0.8kg; Package weight: 1.2kg
Packag
e
Conten
t
GXP1630 phone, handset with cord, base stand, universal power supply, network cable, Quick Installation Guide,
brochure, GPL license, BLF label cards

Compli
ance
FCC : Part 15 (CFR 47) Class B
CE : EN55022 Class B, EN55024, EN61000-3-2, EN61000-3-3, EN60950-1
RCM: AS/ACIF S004; AS/NZS CISPR22/24; AS/NZS 60950; AS/NZS 60950.1
Table 4: GXP1630 Technical Specifications
INSTALLATION
Equipment Packaging
Main Case 1
Handset 1
Phone Cord 1
5V DC Power Adaptor 1
Ethernet Cable 1
Phone Stand 1
Quick Installation Guide 1
BLF Name Cards (GXP1628/GXP1630 only) 1
Table 5: GXP16XX Equipment Packaging
Connecting Your Phone
Figure 1: GXP16xx Back View (Use GXP162x as an example)

Slots for
Phone
Stand
Slots for the phone stand if placing the phone on a flat surface
PC Port 10/100M Ethernet to connect PC on GXP1610/GXP1615/GXP1620/GXP1625, auto-sensing 10/100/1000M
Ethernet to connect PC on GXP1628 and GXP1630
LAN Port
10/100M Ethernet to connect LAN on GXP1610/GXP1615/GXP1620/ GXP1625, auto-sensing 10/100/1000M
Ethernet to connect LAN on GXP1628 and GXP1630, integrated PoE (GXP1615/GXP1625/GXP1628/GXP1630
only)
DC 5V
Power
Port
5V/600mA power port to connect to power adaptor
HEADSET
Port To connect to RJ9 or EHS headphones
HANDSE
T Port To connect handset RJ9
Cord Slot To place and fix the phone cords
Table 6: GXP16XX Connectors
Stand Installation
Figure 2: GXP16xx Stand Installation
1. Insert the hooks on the top of the stand into the slots, you have option to use either upper slots OR lower slots.
2. After both hooks are in the slots, firmly slide the entire stand upward to lock them in place.
Wall Mount Installation

Figure 3: GXP16xx Wall Mount installation
1. Insert all 4 hooks into the slots.
2. Firmly slide the wall mount upward to lock it in place.
To set up the GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630, follow the steps below:
1. Attach the phone stand or wall mount to the back of the phone where there are slots.
2. Connect the handset and main phone case with the phone cord.
3. Connect the LAN port of the phone to the RJ45 socket of a hub/switch or a router (LAN side of the router) using the
Ethernet cable.
4. Connect the 5V DC output plug to the power jack on the phone; plug the power adapter into an electrical outlet. If PoE
switch is used in step 3, this step could be skipped.
5. The LCD will display provisioning or firmware upgrade information. Before continuing, please wait for the date/time
display to show up.
6. Using the keypad configuration menu or phone’s embedded Web server (Web GUI) by entering the IP address in Web
browser, you can further configure the phone.
Safety Compliances
The GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 phone complies with FCC/CE and various safety standards. The
GXP1610/GXP1620/GXP1625/GXP1628/GXP1630 power adapter is compliant with the UL standard. Use the universal power
adapter provided with the GXP1610/GXP1620/GXP1625/ GXP1628/GXP1630 package only. The manufacturer’s warranty does
not cover damages to the phone caused by unsupported power adapters.
Warranty
If the GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 phone was purchased from a reseller, please contact the
company where the phone was purchased for replacement, repair, or refund. If the phone was purchased directly from
Grandstream, contact the Grandstream Support for an RMA (Return Materials Authorization) number before the product is
returned. Grandstream reserves the right to remedy warranty policy without prior notification.
Use the power adapter provided with the phone. Do not use a different power adapter as this may damage the phone. This type
of damage is not covered under warranty.

GETTING TO KNOW THE GXP16XX SERIES
Idle Screen
GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 screen displays differently depending on whether the phone is idle
or in use (active). User can show/hide softkeys and customize the main screen softkey by assigning a multi-purpose function
Figure 4: GXP16xx Idle Screen
The following table describes the items displayed on the GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 idle
screen.
Date and Time Displays the current date and time. It can be synchronized with Internet time
servers.
Network Icon Shows the status of network. It will indicate whether the network is down or
starting.
Status Icon Shows the status of the phone for registration status, call features and etc., using
icons as shown in the next table.
Softkeys in Idle Screen
The softkeys are context sensitive and will change depending on the status of the
phone. Typical functions assigned to softkeys are:
NextScr
Toggles between different idle screens. For example, for GXP1610 / GXP1615 /
GXP1620 / GXP1625 / GXP1628 / GXP1630, pressing most left soft key (switch
screen) will toggle among default idle screen, IP address and Account information.
Redial
Redial the last dialed number when there is existed dialed call log.
FwdAll
Unconditionally forwards the phone line (account 1) to another phone.
Missed
Shows up unanswered calls to this phone.
Note: The ability to customize the 3rd softkey on the idle screen was added starting
firmware 1.0.7.49.

Softkeys in Call Screen
The softkeys are context-sensitive and will change depending on the call status of
the phone. Here are the main softkeys in call screen.
Redial
Redials the last dialed number after off hook when there is existing call log.
Dial
Dials the call out after off hook and entering the number.
Answer
Answers the incoming call when the phone is ringing.
Reject
Rejects the incoming call when the phone is ringing.
EndCall
Ends the active call.
Transfer
Transfer softkey will show up after pressing TRAN button and entering transfer
target number. Press Transfer softkey to do blind transfer.
Split
In auto-attended transfer mode, after establishing the second call, press Split to
quit transfer and go back to normal talking status.
ConfCall
Conferences the active calls.
ReConf
Re-establish the conference among the calls on hold.
Special Softkeys
(Only for
GXP1610/GXP1615/GXP1620/GXP
1625/GXP1628/GXP1630 when
integrated with UCM6xxx)
CallPark
When the phone dials out, the CallPark softkey will display on screen. To park the
call, press it to park the call on available parking lot.
RecOn
During an active call, the RecOn softkey will display on screen. Press it to trigger
UCM call recording.
RecOff
During an active call, after RecOn softkey is pressed and call recording starts, RecOff
softkey will appear on screen. Press it to stop call recording on UCM.
Note: Please refer to UCM6xxx User Manuals for the UCM configurations.
Table 7: LCD Display Definitions

Registration Status.
Solid: Registered
Hollow: Unregistered
Missed Call(s) Notification Status.
OFF – No missed call
ON – New missed call
Handset Status.
OFF – handset on hook
ON – handset off hook
Speaker Status.
OFF – speaker off
ON – speaker on
Headset Status.
OFF – headset off
ON – headset on
Mute Status.
OFF – The active call is not muted
ON – The active call is muted
Call Forward Status.
OFF – Call Forward feature disabled
ON – Call Forward feature enabled
DND Status.
OFF – Do Not Disturb disabled
ON – Do Not Disturb enabled
SRTP Status.
OFF – SRTP is not used
ON – SRTP is being used
Table 8: GXP16XX LCD Icons
Using the Keypad

Figure 5: GXP16xx Front View (GXP1620 as example)
LINE Key
Switch between line 1 and line 2.
Solid Green：Calling, Talking.
Flash Green：Call on hold.
Flash Red：Incoming call.
Softkeys The softkeys are context sensitive and will change depending on the status of the phone.
Messages.
Press to view messages.
Phonebook.
Press to view Contacts.
Home.
Press to go to idle screen, when stay in submenu.
Page/Intercom.
If the intercom number has set, call this number directly.
If the intercom number has not set, press this key will have no effect.
Hold. Place active call on hold or resume the call on hold.
Record.
Press to enable/disable record feature in an active call or on conference.

Standard Keypad
To dial phone numbers.
Press numeric keys “0-9” to enter phone numbers.
Press “*” to enter voice menu or input special characters or long press it to lock the keypad.
Press “#” to dial out numbers or input special characters.
Navigation Keys.
When entered the menu:
Press the UP/DOWN keys to scroll through menu options.
Press the LEFT key to go back to the previous menu.
The RIGHT key has no function.
In Idle:
Press the UP key to view missed calls.
Press the DOWN key to view dialed calls.
Press the RIGHT key to view answered calls.
Menu/OK Key.
In Idle:
Press to enter the main menu.
Confirm the current selection or the inputted info.
Off hook:
Switch between outgoing call and paging call.
Mute.
To mute/unmute an active call.
When DND is on: Enable/disable DND when the phone is in idle.
Headset.
Press to switch between headset and handset mode in an active call.
Transfer.
Transfer an active call to another number.
Conference.
Establish 3-way conference with other 2 parties.
Send.
Send. Enter the digits and then press Send to dial out.
Redial. Redial when there is a previously dialed call.

Speaker.
Press to switch between speaker and handset mode in an active call.
Message Waiting Indicator
Message Waiting Indicator.
The LED Indicator will flash in red when there is new voice mail.
Table 9: GXP16XX Front View Definitions
Characters Input
Each key on a GXP16XX except for key 1 corresponds to one number and a group of three letters, Users need to tap on a key
multiple times until the wanted number or letter appears (Both lower and upper case available), While key 1 is used to input
special characters and number 1.
Refer to below table for each key and character input:
Key Description Key Description Key Description
11 Space . : / ‘ ` @ * + – = , | & ? ! % ( ) ~ _ < > { } [ ] ^ 22 A B C a b c 33 D E F d e f
44 G H I g h i 55 J K L j k l 66 M N O m n o
77 P Q R S p q r s 88 T U V t u v 99 W X Y Z w x y z
**00##
Making Phone Calls
Handset, Speaker and Headset Mode
The GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 allows users to switch among handset, speaker or headset
when making calls. Press the Hook Switch to switch to handset; press the Headset button to switch to headset; or press the
Speaker button to switch to speaker.
SIP Accounts and Lines
GXP1630 supports up to 3 independent SIP accounts, GXP1610/GXP1615/GXP1620/GXP1625/GXP1628 can support up to 2
independent SIP accounts. Each account is capable of independent SIP servers, user and NAT settings. Each of the LINE button
is “virtually” mapped to an individual SIP account. In off hook state, select an idle line and the dial tone will be heard.
To make a call, select the line you wish to use. The corresponding LINE LED will light up in green. The user can switch lines
before dialing any number by pressing the LINE buttons.
For example: If 2 independent accounts are registered on GXP1610/GXP1615/GXP1620/GXP1625/GXP1628, when LINE 1 is
pressed, the LINE 1 LED will light up in green. If LINE 2 is pressed, the LINE 2 LED will light up in green and the subsequent call
will be made through SIP account 2.
Incoming calls to a specific account will attempt to use its corresponding LINE if it is not in use.When the “virtually” mapped
line is in use, the GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 will flash the other available LINE in red. A line is
ACTIVE when it is in use and the corresponding LED is red.
Completing Calls
There are several ways to complete a call.

On hook dialing
Enter the number when the phone is on hook and then send out.
1. When the phone is in idle, enter the number to be dialed out.
2. Take handset off hook; or Press Speaker button; or Press Headset button with headset plugged in; or Select an available
LINE key.
3. The call will be dialed out.
Off hook and dial
Off hook the phone, enter the number and send out.
1. Take handset off hook; or
2. Press Speaker button; or Press Headset button with headset plugged in; or Press an available LINE key to activate speaker.
3. You shall hear dial tone after off hook.
4. Enter the number.
5. Press SEND key or # to dial out.
Predictive dialing
While dialing, the phone will predict, and list candidates of the target number based on the entered digits. If the target
number exists in the contacts/call log, the phone will display a list of matched numbers and the user could select the number
using the Up/Down key and dial out.
Redial
Redial the last dialed number.
1. Take handset off hook; or Press Speaker button; or Press Headset button with headset plugged in; or Press an available
LINE key to activate speaker; or When the phone is in idle.
2. Press SEND key, or the REDIAL soft key.
Via Call History
Dial the number logged in phone’s call history.
1. Press MENU button to bring up the main menu.
2. Enter Call History.
3. Select the entry you would like to call using the navigation arrow keys.
4. Press SEND button to dial out.
Via Contacts
Dial the number from the Contacts
1. Press Contacts button.
2. Under Contacts, enter Local Phonebook/ Broadsoft Phonebook using the navigation arrow key.
3. Select the contact you would like to call using the navigation arrow key.
4. Press SEND button to dial the selected contact.

Speed Dial from Line Key
Dial the number configured as Speed Dial on Line Key.
1. Go to phone’s Web GUI🡪Settings🡪Programmable Keys, configure the Line Key’s Key Mode as Speed Dial. Select the
account to dial from, enter the Name and User ID (the number to be dialed out) for the Line Key. Click on “Update” at the
bottom of the Web GUI page.
2. Off hook the phone, or directly press the Speed Dial key to dial out.
Call Return
Dial the last answered call.
1. Go to phone’s Web GUI🡪Settings🡪Programmable Keys, configure the Line Key’s Key Mode as Call Return. Select the
account to dial from, no Name or User ID has to be set on for Call Return.
2. Off hook the phone, or directly press the Call Return key to dial out.
Via Paging/Intercom
1. Take handset off hook; or Press Speaker button; or Press Headset button with headset plugged in; or Press an available
LINE key to activate speaker.
2. You shall hear dial tone after off hook.
3. Press MENU button to switch the call screen from “Dialing” to “Paging”.
4. Enter the number.
5. Press SEND key or # to dial out.
Via Intercom Hard Button
Dial pre-configured intercom number.
1. Go to phone’s Web GUI🡪Settings🡪Call Features, configure the Intercom User ID as the destination number of intercom
call.
2. When phone is in idle, press in Intercom Hard Button to dial pre-configured number.
Notes:
After entering the number, the phone waits for the No Key Entry Timeout (Default timeout is 4 seconds, configurable via
Web GUI) before dialing out. Press SEND or # key to override the No Key Entry Timeout.
If digits have been entered after handset is off hook, the SEND key will works as SEND instead of REDIAL.
By default, # can be used as SEND to dial the number out. Users could disable it by setting “User # as Dial Key” to “No”
from Web GUI🡪Account X🡪Call Settings.
For Paging/Intercom, if the SIP Server/PBX supports the feature and has Paging/Intercom feature code set up already,
users do not necessarily need toggle to paging mode in the call screen. Simply dial the feature code with extension as a
normal call.
When dial out via paging, user can see the “call-info” header contains “answer-after=0” and “the “alert-info” header
contains “info=alert-autoanswer;delay=0” in the outgoing INVITE.
Making Calls Using IP Addresses
Direct IP Call allows two phones to talk to each other in an ad-hoc fashion without a SIP proxy. VoIP calls can be made
between two phones if:
Both phones have public IP addresses; or
Both phones are on the same LAN/VPN using private or public IP addresses; or

Both phones can be connected through a router using public or private IP addresses (with necessary port forwarding or
DMZ).
To make a direct IP call, please follow the steps below:
1. Press MENU button to bring up main menu.
2. Select “Direct IP Call” using the navigation arrow keys.
3. Press MENU to enter the Direct IP Call mode.
4. Input the 12-digit target IP address (Please see example below).
5. Press the “More” softkey to make sure the softkey selection “IPv4” or “IPv6” is correctly selected depending on your
network environment.
6. Press “OK” softkey to dial.
For example:
If the target IP address is 192.168.1.60 and the port is 5062 (i.e., 192.168.1.60:5062), input the following: 192*168*1*60#5062.
The * key represents the dot (.), the # key represents colon (:). Wait for about 4 seconds and the phone will initiate the call.
Quick IP Call Mode
The GXP1610/GXP1615/GXP1620/GXP1625/GXP1628/GXP1630 also supports Quick IP Call mode. This enables the phone to
make direct IP calls using only the last few digits (last octet) of the target phone’s IP address. This is possible only if both
phones are under the same LAN/VPN. This simulates a PBX function using the CSMA/CD without a SIP server. Controlled static
IP usage is recommended.
To enable Quick IP Call Mode, go to phone’s Web GUI🡪Settings🡪Call Features, set “Use Quick IP – call mode” to “Yes”.
Clicking on “Save and Apply” on the bottom of Web GUI page to take the change. To make Quick IP Call, take the phone off
hook first. Then dial #xxx where x is 0-9 and xxx<255. Press # or SEND and a direct IP call to aaa.bbb.ccc.XXX will be
completed. “aaa.bbb.ccc” is from the local IP address regardless of subnet mask. The number #xx or #x are also valid. The
leading 0 is not required (but it is OK).
For example:
192.168.0.2 calling 192.168.0.3 — dial #3 followed by # or “SEND”.
192.168.0.2 calling 192.168.0.23 — dial #23 followed by # “SEND”.
192.168.0.2 calling 192.168.0.123 — dial #123 followed by # “SEND”.
192.168.0.2: dial #3 and #03 and #003 results in the same call — call 192.168.0.3.
Notes:
The # will represent colon “:” in direct IP call rather than SEND key as in normal phone call.
If you have a SIP server configured, direct IP call still works. If you are using STUN, direct IP call will also use STUN.
Configure the “Use Random Port” to “No” when completing direct IP calls. The option “Use Random Port” is under
phone’s Web GUI Settings 🡪 General Settings page.
Answering Phone Calls
Receiving Calls
Single incoming call. Phone rings with selected ring tone. The corresponding LINE key will flash in red. Answer call by
taking handset off hook, or using Speaker/Headset, or pressing the flashing LINE key.
Multiple incoming calls. When another call comes in while having an active call, the phone will produce a Call Waiting
tone (stutter tone). The other LINE key will flash in red. Answer the incoming call by pressing the flashing LINE key. The
current active call will be put on hold automatically.