SIP Session Timer

Description:

Use this pane to configure SIP Session Timer values.

 

Accessing this Pane:

Dialogic IMG EMS -> Profiles -> SIP Profile -> SIP Session Timer

SC_Tree_SIP_SessionTimers.png

 

Maximum Objects:

1 per SGP

 

Related Topics:

SIP Session Timer

SIP Session Timer Call Flows

SIP UPDATE

 

Preceding Pane:

SIP Profile

 

Note: 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 SGP Profile ClientView Pane:

SIP_Profile_ID_0.png

 

SIP Session Timer ClientView Pane:

SC_SIP_Session_Timer.png

 

 

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) -

 

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.)  

Default = 1800 seconds

 

The time at which an element will consider the session timed out, if no successful session refresh transaction occurs beforehand.