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Bug #2884

open

Call Control timers are very long and not configurable

Added by laforge about 6 years ago. Updated over 4 years ago.

Status:
New
Priority:
Low
Assignee:
-
Category:
-
Target version:
-
Start date:
01/27/2018
Due date:
% Done:

10%

Resolution:
Spec Reference:

Description

I just noticed that there are some timers for which the 3GPP specs don't provide defaults, but we use some really large compiled-in value that cannot be modified.

T310 is one such example. It is invoked if (in a MT call) CALL CONFIRMED is received from the MS, but there's never nay ALERT, CONNET or DISCONNECT following. We are setting it in libosmocore to 180 seconds, which is super large. I doubt anyone would make a call and then wait three minutes for any indication that it rings on the other side. For comparison, the MS-side timer for the same situation is specified at 30s.


Checklist

  • reduce default T310 timeout
  • make call control timers T3xx configurable in VTY
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