IMG 1010 - SIP Session Timer Configuration
- Kelli Higdon
Description:
Use this pane to configure SIP Session Timer values.
Accessing this Pane:
Dialogic IMG EMS -> Profiles -> SIP Profile -> SIP Session Timer
Maximum Objects:
1 per SGP
Related Topics:
IMG 1010 - SIP Session Timer Call Flows
Preceding Pane:
IMG 1010 - SIP Profile - 10.5.3
If the SIP profile ID field in the SIP Profile object is set to ID:0 then the SIP Options Keep Alive fields can not be changed. The fields in the SIP Options will be green indicating that the fields are not selectable. Change the ID in the SIP profile object to something other than ID:0. Below is screen capture showing the SIP object in ClientView
SIP Session Timer ClientView Pane:
Field Descriptions:
Session Timer:
Enable (default)- Enable session timers on the IMG.
Disable- Disable session timers on the IMG.
Enforce Feature:
Enable- If enabled, the IMG will perform the session refresh request even if the remote gateway does not support session timer. The session timer cannot be turned off in mid dialog.
Disable (default) -  If the Session Timer field above is enabled and the Enforce Feature field is disabled then the IMG will NOT perform the session refresh request to a remote gateway that does not support session timer. If the Session Timer field above is disabled then the Enforce Feature field is disabled also.
Refresh Method:
Re-Invite- The IMG will use re-INVITE even if the remote gateway supports UPDATE.
Update- The IMG will use UPDATE only if the remote gateway supports it, otherwise re-INVITE will be used instead.
Refresher:
Only applicable for initial refresh response when IMG acts as UAS and the request does not specify refresher.
Local- The IMG will perform a refresh.
Remote- The IMG will wait for refresh request.
Minimum Session Expires:
Establishes the lower bound session refresh interval. It can be raised but cannot be lowered. It is mandatory on 422 response and optional on INVITE and UPDATE request.
The Minimum Session Expires Timers range is 90-86400 seconds.
The Minimum Session Expires Timers Default = 900 seconds
Session Expire:
Establishes the upper bound session refresh interval. It can be lowered but cannot be below the value specified in Minimum Session Expires Timer (Min-SE). It is optional on INVITE or UPDATE request and 2xx response to INVITE or UPDATE. The Session Expires Timers range is 90-86400 seconds. The recommended value is 1800 seconds. (30 minutes.) Â
Default = 1800 seconds