Grandstream Networks GXW400X - SIP Session Timer Settings; Session Expiration Configuration; Minimum Session Expiration (Min-SE)

P a g e | 62
GXW400X User Manual
Session Expiration
Grandstream implemented SIP Session Timer. The session timer extension
enables SIP sessions to be periodically “refreshed” via a SIP request (UPDATE,
or re-INVITE. When the session interval expires, if there is no refresh via a
UPDATE or re-INVITE message, the session will be terminated.
Session Expiration is the time (in seconds) at which the session is considered
timed out, if no successful session refresh transaction occurs beforehand. The
default value is 180 seconds.
Min-SE
The minimum session expiration (in seconds). The default value is 90 seconds.
Caller Request
Timer
If selecting “Yes” the phone will use session timer when it makes outbound calls
if remote party supports session timer.
Callee Request
Timer
If selecting “Yes” the phone will use session timer when it receives inbound calls
with session timer request.
Force Timer
If selecting “Yes” the phone will use session timer even if the remote party does
not support this feature. Selecting “No” will allow the phone to enable session
timer only when the remote party support this feature.
To turn off Session Timer, select “No” for Caller Request Timer, Callee Request
Timer, and Force Timer.
UAC Specify
Refresher
As a Caller, select UAC to use the phone as the refresher, or UAS to use the
Callee or proxy server as the refresher.
UAS Specify
Refresher
As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to
use the phone as the refresher.