Grandstream Networks WP820 Administration Manual page 20

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