Grandstream Networks WP820 Administration Manual page 36

Re-register before
Specifies the time frequency (in seconds) that the phone sends re-registration
Expiration (s)
request before the Register Expiration. The default setting is 0. The range is from
0 to 64800.
Registration Retry
Configures the time period (in seconds) in which the phone will retry the
Wait Time (s)
registration process in the event that is failed. The default setting is 20. The
maximum value is 3600 (1 hour).
Add Auth Header On
Configure if the SIP account needs to add Auth header in RE-REGISTER.
RE-REGISTER
• If the option is checked, device will always add authentication header in
• If the option is unchecked, device will only send authentication for the first
Enable SIP OPTIONS
Enables SIP OPTIONS to track account registration status so the phone will send
Keep Alive
periodic OPTIONS message to server to track the connection status with the
server. The default setting is "No".
SIP OPTIONS Keep
Configures the time interval when the phone sends OPTIONS message to SIP
Alive Interval (s)
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
Configures the maximum times of sending OPTIONS message consistently from
Alive Maximum Tries
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
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".
REGISTER.
REGISTER.
service. WP820
WP820 Administration Guide
Version 1.0.1.15
phone supports both synchronized and
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