Grandstream Networks WP820 Administration Manual page 20

SIP Basic Settings
SIP
Allows the phone to send SIP REGISTER messages to the proxy/server.
Registr
The default setting is "Yes".
ation
Unregi
Controls whether to clear SIP user's information by sending un-register request to the proxy server. When set to
ster
"All", the un-registration is performed by sending a REGISTER message with "Contact" header set to * and
before
Expires=0 parameters to the SIP server when the phone starts pre-registration after rebooting. If set to "Instance",
New
the phone only cleans the current SIP user's info by sending REGISTER message with "Contact" header set to
Registr
concerned SIP user's info and Expires=0 parameters to the SIP server. The default setting is "Instance".
ation
Regist
Configures the time period (in minutes) in which the phone refreshes its registration with the specified registrar.
er
Expirat The default setting is 60. The maximum value is 64800 (about 45 days).
ion (m)
Subscr
Specifies the frequency (in minutes) in which the phone refreshes its subscription with the specified register. The
ibe
Expirat maximum value is 64800(about 45 days).
ion (m)
Re-
registe
r Specifies the time frequency (in seconds) that the phone sends re-registration request before the Register
before Expiration. The default setting is 0. The range is from 0 to 64800.
Expirat
ion (s)
Registr
ation
Retry Configures the time period (in seconds) in which the phone will retry the registration process in the event that is
Wait failed. The default setting is 20. The maximum value is 3600 (1 hour).
Time
(s)
Add
Configure if the SIP account needs to add Auth header in RE-REGISTER.
Auth
Header
● If the option is checked, device will always add authentication header in REGISTER.
On RE-
● If the option is unchecked, device will only send authentication for the first REGISTER.
REGIS
TER
Enable
SIP
OPTIO Enables SIP OPTIONS to track account registration status so the phone will send periodic OPTIONS message to
NS server to track the connection status with the server. The default setting is "No".
Keep
Alive
SIP
OPTIO
NS Configures the time interval when the phone sends OPTIONS message to SIP server. The default setting is 30
Keep seconds, which means the phone will send an OPTIONS message to the server every 30 seconds. The valid range
Alive is 1-64800.
Interva
l (s)
SIP Configures the maximum times of sending OPTIONS message consistently from the phone to server. Phone will
OPTIO keep sending OPTIONS messages until it receives response from SIP server. The default setting is "3", which
NS