Can anyone with experience assist me with the following capture that I took from two VOIP handsets transferring a call to a SIP desk phone. What is the recommended next step for troubleshooting after receiving the data below? I don't have a ton of experience with VOIP so I'm uncertain.
RTP Stream Analysis
VOIP CALL FLOW
Why are there so many repeated invites, etc. above? Everything is duplicated and I'm not sure if this is normal behavior..and if it it's normal behavior what could be the root cause? I'm leaning towards the assumption that the issue is a network congestion issue?! ...but I'm quite uncertain at this point. Any help would be greatly appreciated..also I can provide additional information if needed. Thank you.
asked 29 Mar '15, 11:45
edited 29 Mar '15, 12:26
One reason could be, that all your frames are duplicated, maybe due to a problem with your capture setup (mirroring traffic of ingress and egress port on the switch) !! Can you please try to capture the frames only once, because the duplicated frames makes troubleshooting harder than it needs to be ;-)) You can try to de-duplicate the capture file with editcap.
Then there are some of the following messages:
which indicates failed authentication and thus a retry.
answered 30 Mar '15, 07:05
Kurt Knochner ♦