Grandstream Networks WP820 Instruction Manual

Grandstream Networks, Inc.
WP820
Administration Guide

WP820 – Administration Guide
WELCOME
Thank you for purchasing Grandstream WP820. This powerful Enterprise Portable Wi-Fi Phone features dual-band
802.11a/b/g/n Wi-Fi, supports Wi-Fi roaming, and integrated Bluetooth. The combination of advanced telephony features and
durability make it ideal for mobilizing your VoIP network in residences, warehouses, retail stores, hotels and many more
environments. Due to a durable design, this sleek phone is drop safe from 1.2 meters, with 150 hours standby time and 7.5
hours talk time making it an ideal addition for homes and businesses alike.
PRODUCT OVERVIEW
Feature Highlights
The following table contain the major features of the WP820:
Table 1: WP820 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 Base station WP820.
●2 SIP accounts and 2 lines.
●3-way audio conference calls.
●Dual-band 802.11a/b/g/n Wi-Fi.
●Wi-Fi roaming and integrated Bluetooth.
●150 hours standby time.
●7.5 hours talk time.
Protocols/Standards SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,NAPTR),
DHCP, SSH, TFTP, NTP, STUN, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP, IPv6
Voice Codecs and Capabilities Support for G.711μ/a, G.729A/B, G.722 (wide-band), iLBC, Opus, in-band, and out-of-band DTMF
(In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC, ANS
Wi-Fi Yes, integrated dual-band Wi-Fi 802.11 a/b/g/n (2.4GHz & 5GHz)
Wi-Fi Encryption WEP, WPA/WPA2, WPA Enterprise
Graphic Display 2.4-inch (240×320) TFT color LCD

Table 2: WP820 Technical Specifications
Peripherals 3 soft keys, dial, hang up, speakerphone, phonebook, backlit keypad, proximity sensor, accelerator,
vibration motor, volume button and navigation keys
Push-to-Talk Customizable button for push-to-talk, panic call and other related functions
Bluetooth Yes, Bluetooth v4.2
Auxiliary Ports 3.5 mm headset jack, Micro-USB port for charging, dual-MIC, dual-color LED.
Telephony Features
Hold, transfer, forward, 3-way audio conference, downloadable phonebook (XML, up to 1000
items), call waiting, call log (up to 100 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, push to talk
Security User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES
based secure configuration file, SRTP, TLS, 802.1x media access control
HD Audio Yes, both on handset and speakerphone with support for wideband audio, HAC supported
QoS 802.11e (WMM) and Layer 3 (ToS, DiffServ, MPLS) QoS
Multi-language English, Arabic, Chinese, Czech, Dutch, German, French, Hebrew, Italian, Japanese, Polish,
Portuguese, Russian, Spanish, Turkish, and Hungarian.
Upgrade/ Provisioning Firmware upgrade via TFTP/HTTP/HTTPS, manual upload, mass provisioning using TR-069 or
encrypted XML configuration file, manual upload, USB upgrade
Power & Green Energy
Efficiency
Universal power adapter included
Input: 100-240VAC; Output: +5VDC, 1A (5W)
1500mA Li-ion battery, 150h standby time and 7.5h talk time
Physical
Handset dimensions: 168.5 x 52.5 x 21.8mm
Charger cradle dimensions : 76 x 73 x 81mm
Handset weight: 161g
Handset package weight (not including QIG): 456g
Temperature and Humidity
Operating Temperature: 0~45°C; Operating Humidity: 10~90%(non-condensing)
Storage Temperature: -20~60°C; Storage Temperature:10~90%(non-condensing)
Package Contents
Handset unit, universal power supply, charger cradle, belt clip, 1 Li-ion battery.
Quick Installation Guide.
Durability Drop-safe from 1.2 meters height
Compliance FCC, CE, RCM, IC

GETTING STARTED
This chapter provides basic installation instructions including the list of the packaging contents and also information for
obtaining best performance with the WP820.
Equipment Packaging
Table 3: Equipment Packaging
Figure 1: WP820 Package Content
Setting up the WP820
Charging Station
Plug the power adapter into a power source socket to start using the charging station.
WP820
●1x Handset unit
●1x Universal power supply 5V
●1x Charger cradle
●1x Belt clip
●1x Rechargeable battery
●1x Quick Installation Guide
●1x GPL Statement
Important
Check the package before installation. If you find anything missing, contact your system administrator.

Figure 2: Charging Station
Handset
Please refer to the following steps in order to setup your WP820:
1. Open the battery cover.
2. Insert the battery with the electrodes in the bottom left corner.
3. Close the battery cover.
Figure 3: WP820 Handset Setup
Battery Information
Technology: Rechargeable Li-ion Battery
Voltage: 3.8V (Nominal Voltage 3.8V / Limited charge Voltage: 4.35 V)
Capacity: 1500mAh
Standby time: up to 150 hours
Talk time: up to 7.5 hours’ active talk time
In order to get the best performance of your WP820, we recommend using original battery provided in the package. The
specifications may differ depending on the age and capacity of the battery used.
Note
Please charge the battery fully before using the handset for the first time. (For more information about the battery, please refer
to Battery Information.
Note
WP820 Wi-Fi phone generates a warning tone when device’s battery level becomes 15% and 5%.
WP820 auto boots up once placed on charger when device was powered off abnormally (Battery too low, battery removed
suddenly, etc..).
Important Note

WP820 Handset Keys Description
The WP820 enhances communication and combines usability and scalability in industries such as warehousing, catering, and
retail as well as in factory settings. The following screenshot describe the WP820 LCD screen and the main hardware
components.
Figure 4: WP820 Description
The following table describes the WP820 keypad keys.
Key Description
1. Proximity sensor
The proximity senor can detect the presence of a human ear. Thissensingis done for two
purposes: Reduce display power consumption by turning off the LCD backlight and to avoid
inadvertent touches.
2. Earphone Delivers audio output.
3,
4
Volume up / Down
Keys Configure the handset and ringtone volume.
5. PTT Key
PTT (Push-to-Talk) button to initiate PTT call.
Note: PTT button can also be configured from Web GUI to have other functions such as:
SAFE/Panic Call & Mute/Unmute during calls.
6. Hands-free / Speaker
key Switches between Handset and Hands-free / Speaker modes.
7.
Arrow key
combination (Up,
Down, Left, Right)
Allows navigation of the cursor through the displayed menu options.
8. Off-hook / Dial key Enters dialing mode, or dials number entered.
Be careful when inserting the battery into your handset to avoid any risk of short-circuit, which lead to damage your battery
and/or the handset itself. Do not use damaged batteries which can increase the risk of serious harm.

9. Alphanumeric Keypad Provides the digits, letters, and special characters in context-sensitive applications. For +
sign, press and hold key 0.
1
0. * / Mute key Activates or deactivates the mute feature when keep pressing on * in idle screen.
1
1. LED indicator 1dual-color LED indicator indicating: power, call, battery, message waiting …
1
2. 3.5 mm headset jack Phone connector for the headphones/headsets.
1
3. Color LCD Screen 2.4-inch (240×320) TFT color LCD
1
4. Softkeys
Correspond to functions displayed on the LCD. These functions change depending on the
current context, and they can be customized on Home screen and Call screen from the Web
GUI.
1
5. Contacts Access to contacts list.
1
6. Menu/OK key Selects the option chosen by the cursor or enters the main menu from the home screen.
1
7.
On-hook or Power
key Terminates calls or turns the handset on / off.
1
8. # / Lock key
Locks keypad against unintentional entries when keep pressing #.
Press and hold # key for approximately 2 seconds to lock the keys.
Press Unlock softkey and then # to unlock the keys.
1
9. Microphone Picks up audio earpiece and hands-free calls.
Table 4: WP820 Description
WP820 Icons Description
Following table contains description of each icon that might be displayed on the screen of the WP820.
Battery status
Charging
Wi-Fi not enabled/configured
Wi-Fi signal status

Table 5: WP820 Icons Description
Outgoing Call notification
Missed Call notification
Incoming Call notification
Voicemail notification (Urgent)
Voicemail notification (Normal)
Mute enabled icon
DND enabled icon
Bluetooth enabled icon
Bluetooth connected icon
SRTP & TLS enabled icon
Contacts
SMS
Call History
Voice Mail
Diagnosis
Settings
Applications
Status
Broadsoft XSI
Note

WP820 LED Status
Red Fast Flashing Upgrading
Green Slow Flashing Incoming call
Green Blinking Charging but not full
Green Solid Charging (full)
Red Slow Flashing
Missed call (s)
New voicemail (s)
New SIP Message (s)
Red Solid Network disconnected
LED OFF Normal
Table 6: WP820 LED Status
WP820 Handset Menu
The handset has an easy-to-use menu structure. Every menu opens a list of options. To open the main menu, unlock first the
handset and press “Menu” (softkey in the middle). Press Arrow keys to navigate to the menu option you require. Then press
“Select” (left softkey) or OK/Selection key to access further options or confirm the setting displayed.
To go to the previous menu item, press “Back” (right softkey). You can press Power key at any time to cancel and return to
standby mode.
SRTP & TLS enabled icon will be displayed only in case signaling and media are both encrypted.

Figure 5: WP820 Menu Structure
Contacts Display the list of the registered contacts and also the groups contacts with the ability of searching, adding, or editing
the entries and also deleting the selected contacts. The maximum number of contacts is 1000.
Call History Display the call history: Missed Calls, Accepted Calls, Outgoing Calls or All Calls. You can add contacts to Shared
Contacts directly from call logs.
SMS SMS stands for Short Message Service and referred to as a "text message". With a SMS, you can send a message by
pressing “New” of up to 160 characters to another device or check the received ones.
Voice Mail ●Play Message: Play voice mail messages received.
●Set Voice Mail: Configure voice mail parameters.
Diagnostics
●LCD diagnosis
●LCD off
●LED diagnosis
●Keypad diagnosis
●Audio loopback
●Acceleration sensor
●Sensor calibration
●Proximity sensor
●Vibrator
●Certificate Verification
●Traceroute
●Ping
●NSLookup
●One-click Debugging

Figure 7: WP820 Menu Structure
Connecting WP820 to Wi-Fi network
The WP820 supports dual-band 802.11a/b/g/n Wi-Fi, please refer to the following steps in order to connect your WP820 to
the Wi-Fi networks:
1. On LCD menu, press Menu key and navigate to Settings → Network Settings → Wi–Fi.
2. Set Wi-Fi to “On“ and navigate to “Wi-Fi Settings“. A list of Wi-Fi networks will be displayed.
3. Select the desired network to connect to. (Enter the correct password to connect if requested).
WP820 will display Wi-Fi icon on the main LCD menu if the con nection to the Wi-Fi network is successful.
Figure 6: Wi-Fi Settings
Settings
●Account: Configure/View SIP accounts settings and account ringtone.
●Call settings: Configure the account auto answer, call forward, DND and speed dial settings.
●Network Settings: Configure the networks settings including Wi-Fi settings and additional networks settings.
●Bluetooth Settings: Configure the Bluetooth settings including discovery, pairing and connection actions.
●Basic Settings: Configure the basic settings including voice settings, display settings, Gestures and button
customization, language settings and date/time settings.
●Advanced Settings: Configure the advanced settings including system upgrade, PTT/Paging settings, system
security settings, syslog settings and factory reset / reboot.
Applications ●Alarm Clock: Configures the alarm clock settings
●Calculator: performs arithmetic operations on numbers.
Broadsoft XSI Broadsoft account.
Status
Displays account status, system info, Network status and network statistics
●Account status
●System Info: Press to enter the sub menu for Running memory, Storage status, MAC address, System version,
Recovery version, U-boot version, Kernel version, Hardware version, PN number, Country code and Running time.
●Network status: Press to enter the sub menu for MAC address, IP setting information (DHCP/Static IP), IPv4
address, IPv6 address, Subnet Mask, Gateway, DNS server.
●Network Statistics: Press to enter the sub menu for Network SSID, BSSID, IP address, Signal strength, Connection
speed, Channel, Frequency, Tx packets, Tx error packets, Tx error rate, Tx drop packets, Tx drop rate, Rx packets,
Rx error packets, Rx error rate, Rx drop packets, Rx drop rate.
●Battery: Displays the battery status and the battery usage details.
Note:
If 5GHz and 2.4Ghz are both available, the WP820 will use 5GHz, but it may switch to 2.4GHz if the signal of 5GHz is poor. Users
may also specify the Wi-Fi Band in order to fix it or to keep it Dual Band.
Note

Obtain WP820 IP Address
In order to know which IP address is assigned to your WP820, please follow below steps:
1. Unlock first your WP820 and press “Menu”(Middle softkey) or Ok button to view operation menu.
2. Press Arrow (Up, Down, Left, Right) keys to move the cursor to Status icon , then press “Select” (left softkey) or Ok
button.
3. Access Network Status menu to obtain the IP address of the WP820.
Figure 7: Obtaining IP Address
WP820 WEB GUI ACCESS CONFIGURATION
The WP820 can be configured using:
Web GUI embedded on the WP820 using PC’s web browser.
LCD Configuration Menu using the WP820 keypad.
Note: From the Web GUI, you can configure all the functions supported by the WP820; while via keypad menu, you can access
limited configuration.
Configuration via Web Browser
The WP820 embedded Web server responds to HTTP/HTTPS GET/POST requests. Embedded HTML pages allow a user to
configure the WP820 through a Web browser such as Google Chrome, Mozilla Firefox.
Note: Please note that Microsoft’s IE 9 and below are not supported, also the records from the web cannot be played with
IE10, Edge and Safari. We highly recommend using Google Chrome or Mozilla Firefox.
Accessing the Web UI
1. Connect the computer to the same network as WP820.
2. Make sure the WP820 is booted up and powered correctly.
3. You may check WP820 IP address via a subscribed WP820 on its LCD menu Settings 🡪 Network Status. Please see
[WP820 Network Status]
4. Open Web browser on your computer and enter the WP820 IP address in the address bar of the browser.
5. Enter the administrator’s username and password to access the Web Configuration Menu.
If you receive a Wi-Fi association reject message from AP, it will show Disabled on available WI-FI networks, and this is not set
or configured at WP820 side, the possible reasons are: blacklisted by AP, open band steering or load balance on AP, reach max
connection limit of AP, etc…
Note

Web GUI Languages
Currently the WP820 web GUI supports English, Chinese languages.
Users can select the displayed language in web GUI login page, or at the upper right of the web GUI after logging in
Figure 8: WP820 Web GUI Language
Saving the Configuration Changes
When changing any settings, always submit them by pressing Save and Apply buttons. If using the Save button, after making
all the changes, click on the Apply button on top of the page to submit.
Web UI Access Level Management
There are two default passwords for the login page:
User Level Userna
me
Passwo
rd Web Pages Allowed
End User Level user 123 Only Status, Phone Settings, System Settings, Maintenance and System Application
with limited options.
Administrator
Level admin admin All pages
Table 8: Web UI Access Level Management
Changing User Level Password
1. Access the Web GUI of your WP820 using the admin’s username and password. (Default username and password are:
admin/admin).
2. Press Login to access your settings.
3. Go to System Settings 🡪 Security Settings.
4. In User Info Management, locate user password section:
Type in the admin password in the Current Admin Password field.
Type in your new user password in New User Password field.
The computer must be connected to the same sub-network as the WP820. This can be easily done by connecting the
computer to the same hub or switch as the WP820.
The default administrator username and password are “admin”; the default end-user username is “user“ and the password
is “123”.
If ‘Disable web UI access’ parameter is enabled under Advanced settings 🡪 System security; web UI access will be
disabled.

Type in again same entered password in Confirm New User Password field.
5. Press Save and Apply buttons to save your new settings.
Figure 9: User Level Password
Notes:
DO NOT USE same password for both user and admin accounts.
The password is case sensitive with maximum length of 25 characters.
Changing Admin Level Password
1. Access the Web GUI of your WP820 using the admin’s username and password. (Default username and password is:
admin/admin).
2. Press Login to access your settings.
3. Go to System Settings 🡪 Security Settings.
4. In User Info Management, locate admin password section:
1. Type in the admin password in the Current Admin Password field
2. Type in your new user password in New Admin Password field.
3. Type in again same entered password in Confirm New Admin Password field.
5. Press Save and Apply buttons to save your new settings.
Figure 10: Admin Level Password
Important
DO NOT USE same password for both user and admin accounts.
The password is case sensitive with maximum length of 25 characters.

Changing HTTP / HTTPS Web Access Port
1. Access the Web GUI of your WP820 using the admin’s username and password. (Default username and password are:
admin/admin).
2. Press Login to access your settings.
3. Go to System Settings 🡪 Security Settings.
4. In Web/SSH Access page, select the access method depending on desired protocol (HTTP or HTTPS)
5. Locate HTTP / HTTPS Web Port field and change it to your desired/new HTTP / HTTPS port.
Note: By default, the HTTP port is 80 and HTTPS is 443.
6. Press Save and Apply buttons to save your new settings.
Figure 11: Web/SSH access
WP820 WEB GUI SETTINGS
This section describes the options in the WP820 Web UI. As mentioned, you can log in as an administrator or an end user.
Status: Display account status, network status and system info.
Account: Configure accounts with general settings, SIP settings, codec settings, call settings and advanced settings.
Phone Settings: Configure general settings, call settings, ringtone, Video Settings, PTT/multicast paging and Wallpaper
setting.
Network Settings: Bluetooth, Wi-Fi settings, OpenVPN® settings and advanced network settings.
System Settings: Time/language settings, security settings, preferences settings and TR069 settings.
Maintenance: Configure upgrade and provisioning settings, system diagnosis and event notification settings.
Application: Configure phonebook settings and call recording settings.
Note
After modifying the connection method or port, the web GUI will be automatically logged out and redirected to the new address

Value-added Service: Configure GDS settings.
Status Page Definitions
Status/Account Status
Account Displays list of configured accounts.
Number Displays the numbers of the configured accounts.
SIP
Server Displays list of SIP Server user by the configured accounts.
Status Shows the status of SIP registration. If the SIP account is successfully registered, it will display “Registered” with
green background. If the SIP account is not registered, it will display “Unregistered” with grey background.
Table 9: Status/Account Status
Status/Network Status
MAC
Address
Shows Device ID in hexadecimal format. This is needed by network administrators for troubleshooting. The MAC address
will be used for provisioning and can be found on the label on original box and on the label located on the bottom panel of the
device.
NAT Type Indicates type of NAT for each Profile. (Based on STUN protocol.)
IPv4
Address
Type Indicates the configured address type: DHCP or Static IP
IPv4
Address Displays assigned IP address. Example: 192.168.5.110
Subnet
Mask Displays assigned subnet mask. Example: 255.255.255.0
Default
Gateway Displays assigned default gateway. Example: 192.168.5.1
DNS
Server 1 Shows assigned DNS server address 1. Example: 8.8.8.8
DNS
Server 2 Shows assigned DNS server address 2. Example: 8.8.4.4
IPv6
IPv6Addr
ess Type Indicates the configured address type: DHCP or Static IP
IPv6
Address Displays assigned IP address.
IPv6 DNS
Server 1 Shows assigned DNS server address 1.

Table 10: Status/Network Status
Status/System Info
Product Model Product model of the phone.
Hardware Revision Hardware version number.
Part Number Product part number.
System Version Firmware version.
Recovery Version Recovery image version.
Boot Version Booting code version.
Kernel Version Kernel version.
CPE Version CPE version.
System Up Time System up time since last reboot.
LCD Serial Number LCD Serial Number.
DDR Serial Number DDR Serial Number.
Factory Serial Number Factory Serial Number.
Table 11: Status/System Info
Account Page Settings
Account/General Settings
IPv6 DNS
Server 2 Shows assigned DNS server address 2.
IPv6
DUID Shows the IPv6 DUID
Account Settings
Account Active
This field indicates whether the account is active.
The default setting is “Yes”. The default value for Account 2 is
“No”.
Account Name Configure the name associated with each account to be displayed on
the LCD.
SIP Server Configures the URL or IP address, and port of the SIP server. This is
provided by your VoIP service provider (ITSP).
Secondary SIP Server Configures the URL or IP address, and port of the SIP server. This
will be used when the primary SIP server fails.
SIP User ID
Configures the user account information, provided by your VoIP
service provider (ITSP). It is usually in the form of digits similar to
phone number or actually a phone number.
SIP Authentication ID Configures the SIP service subscriber’s ID used for authentication.
It can be identical to or different from the SIP User ID.
SIP Authentication Password
Configures the account password required for the phone to
authenticate with the ITSP (SIP) server before the account can be

registered. After it is saved, this will appear as hidden for security
purpose.
Display Name Configures the SIP server subscriber’s name (optional) that will be
used for Caller ID display.
Tel URI
Indicates E.164 number in “From” header by adding “User=Phone”
parameter or
using “Tel:” in SIP packets if the base has an assigned PSTN
Number.
●Disabled: Will use “SIP User ID” information in the Request-
Line and “From” header.
●User=Phone: “User=Phone” parameter will be attached to the
Request-Line and “From” header in the SIP request to indicate
the E.164 number. If set to "Enable".
●Enabled: "Tel:" will be used instead of "sip:" in the SIP request.
Please consult your carrier before changing this parameter. Default
is Disabled.
Voice Mail Access Number Defines the voice mail portal access number to allow users
accessing their voice messages.
Network Settings
Outbound Proxy
Configures the IP address or Domain name of the Primary
Outbound Proxy, Media Gateway, or Session Border Controller. It is
used by the phone for Firewall or NAT penetration in different
network environments. If a symmetric NAT is detected, STUN will
not work and ONLY an Outbound Proxy can provide a solution.
Secondary Outbound Proxy
Configures the IP address or Domain name of the Secondary
Outbound Proxy, Media Gateway, or Session Border Controller.
Secondary outbound proxy will be used when the primary outbound
proxy fails.
DNS Mode
Selects DNS mode to use for the client to look up server. One mode
can be chosen.
●A Record: resolves IP Address of target according to domain
name.
●SRV: DNS SRV resource records indicate how to find services
for various
3. protocols.
●NAPTR/SRV: Naming Authority Pointer according to RFC
2915.
Default is A Record.
DNS SRV Fail-over Mode The option will decide which IP is going to be used in sending
subsequent SIP packets (ex: Register refresh requests) after the list
of IPs for SIP server host is resolved with DNS SRV.
●Default (prefer server with lowest SRV priority): The phone
will always prefer to send SIP requests to the available server
having the lowest priority, and in case it is down it contacts the
next one, but once the server having lowest priority is UP again,
the phone will switch over to this one.
●Saved one until DNS TTL (Stay on responding IP until DNS
timeout): On this mode, the phone will resolve DNS SRV
records and tries to send the request to the server having lowest
priority and if it does not respond, it will move on to the next IP
until one of the servers responds, once this happen the phone

Table 12: Account/General Settings
Account/SIP Settings
will keep contacting this responding IP until DNS timeout (30
minutes) before starting over.
●Saved one until no response (Stay on responding IP until its
failure): On this mode, the phone will send SIP requests to the
last responding IP, and it does not failover/switchover to the
next one until this responding server is down.
Note: WP820 now supports failover and redundancy requests
coming from Cisco/BW systems.
NAT Traversal
Specifies which NAT traversal mechanism will be enabled on the
phone. It can be selected from the dropdown list:
●NAT NO
●STUN
●Keep-alive
●Auto
●OpenVPN
If the outbound proxy is configured and used, it can be set to “NAT
NO”.
If set to "STUN" and STUN server is configured, the phone will
periodically send STUN message to the SUTN server to get the
public IP address of its NAT environment and keep the NAT port
open. STUN will not work if the NAT is symmetric type.
If set to “Keep-alive”, the phone will send the STUN packets to
maintain the connection that is first established during registration
of the phone. The “Keep-alive” packets will fool the NAT device
into keeping the connection open and this allows the host server to
send SIP requests directly to the registered phone.
If it needs to use OpenVPN to connect host server, it needs to set it
to “OpenVPN”. The default setting is "NAT NO".
Proxy-Require
Adds the Proxy-Required header in the SIP message. It is used to
indicate proxy-sensitive features that must be supported by the
proxy. Do not configure this parameter unless this feature is
supported on the SIP server.
SIP Basic Settings
SIP
Registration
Allows the phone to send SIP REGISTER messages to the proxy/server.
The default setting is "Yes".
Unregister
before New
Registration
Controls whether to clear SIP user’s information by sending un-register request to the proxy server. When set to "All", the
un-registration is performed by sending a REGISTER message with “Contact” header set to * and Expires=0 parameters
to the SIP server when the phone starts pre-registration after rebooting. If set to "Instance", the phone only cleans the
current SIP user's info by sending REGISTER message with “Contact” header set to concerned SIP user’s info and
Expires=0 parameters to the SIP server. The default setting is "Instance".
Register
Expiration
(m)
Configures the time period (in minutes) in which the phone refreshes its registration with the specified registrar. The
default setting is 60. The maximum value is 64800 (about 45 days).
Subscribe
Expiration
(m)
Specifies the frequency (in minutes) in which the phone refreshes its subscription with the specified register. The
maximum value is 64800(about 45 days).
Re-register
before
Specifies the time frequency (in seconds) that the phone sends re-registration request before the Register Expiration. The
default setting is 0. The range is from 0 to 64800.

Expiration
(s)
Registration
Retry Wait
Time (s)
Configures the time period (in seconds) in which the phone will retry the registration process in the event that is failed.
The default setting is 20. The maximum value is 3600 (1 hour).
Add Auth
Header On
RE-
REGISTER
Configure if the SIP account needs to add Auth header in RE-REGISTER.
●If the option is checked, device will always add authentication header in REGISTER.
●If the option is unchecked, device will only send authentication for the first REGISTER.
Enable SIP
OPTIONS
Keep Alive
Enables SIP OPTIONS to track account registration status so the phone will send periodic OPTIONS message to server to
track the connection status with the server. The default setting is "No".
SIP
OPTIONS
Keep Alive
Interval (s)
Configures the time interval when the phone sends OPTIONS message to SIP server. The default setting is 30 seconds,
which means the phone will send an OPTIONS message to the server every 30 seconds. The valid range is 1-64800.
SIP
OPTIONS
Keep Alive
Maximum
Tries
Configures the maximum times of sending OPTIONS message consistently from the phone to server. Phone will keep
sending OPTIONS messages until it receives response from SIP server. The default setting is "3", which means when the
phone sends OPTIONS message for 3 times, and SIP server does not respond this message, the phone will send RE-
REGISTER message to register again. The valid range is 3-10.
Subscribe
for MWI
Configures the phone to subscribe voice message service. If it is set to "Yes", the phone will periodically send SIP
SUBSCRIBE message for Message Waiting Indication service. WP820 phone supports both synchronized and non-
synchronized MWI. The default setting is "No".
Use Privacy
Header
Determines if the Privacy header will be presented in the SIP INVITE message and if it includes the caller info in this
header. If it is set to "Default", the Privacy Header will be omitted in INVITE when "Huawei IMS" special feature is
active. If set to "Yes", it will always be presented. If set to "No", it will always be omitted. The default setting is "Default".
Use P-
Preferred-
Identity
Header
Specifies if the P-Preferred-Identity Header will be presented in the SIP INVITE message. If set to “default", the P-
Preferred-Identity Header will be omitted in SIP INVITE message when "Huawei IMS" special feature is active. If set to
"Yes", the P-Preferred-Identity Header will always be presented. If set to "No", it will be omitted. The default setting is
"Default".
Use P-
Access-
Network-
Info Header
Use P-Access-Network-Info header in SIP request.
Use P-
Emergency-
Info Header
Use P-Emergency-Info header in SIP request.
Use Mac
Header
Configures whether to use MAC header for SIP. If set to "No", all SIP REGISTER messages will not contain MAC
header. If set to "Only for REGISTER", MAC header will only be included in SIPREGISTER and UNREGISTER
messages. If set to "Yes to All SIP", all outgoing SIP REGISTER messages will contain MAC header. Default is No.
Add MAC in
User-Agent
Configures whether to add MAC address in User-Agent header. If set to "No", all outgoing SIP messages will not attach
MAC address to the User-Agent header; If set to "Yes except REGISTER", all outgoing SIP messages except REGISTER
message will attach the MAC address to the User-Agent header; If set to "Yes to All SIP", all outgoing SIP messages
including REGISTER message will attach MAC address to the User-Agent header. Default is No.
SIP
Transport
Determines the network protocol used for the SIP transport. Users can choose from TCP/UDP/TLS. Default setting is
“UDP”.