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Knowledge Base

Voice call hang up after sometime in AR28-11 when using SIP and Voice Proxy

Publication Date:  2012-07-27  |   Views:  136  |   Downloads:  0  |   Author:  Diogo Ferreira  |   Document ID:  EKB0000307229

Contents

Issue Description

Router: AR28-11
VRP: VRP 3.4 0201P13
Protocol: SIP
SoftX: Huawei
Voice call hang up after sometime.
      

Alarm Information

Null
      

Handling Process

Null
      

Root Cause

When using SIP for VOIP in the AR28-11 for phone calls through SoftX, the SoftX sends a OPTIONS requisition to the router to check if the call is still up. The router does not respond to this requisition. After no response the SoftX will send lots of OPTIONS requisitions for 2 minutes, if no reponse, the SoftX cut the call.

Suggestions

There is no solution to this problem in this VRP.
Route Engine must be upgraded to solve it.
There is a restricted version AR28-VRP340-F0305 that solve this problem.