[VoiceOps] Delay on RTP for Inbound Calls

Ujjval Karihaloo ujjval at simplesignal.com
Wed Jan 6 00:31:56 EST 2010

I trace a call...on my cell phone I hear the first 1 -2 seconds clipped...however the trace sounds fine....

Traced at SBC side facing Level 3
Traced at SBC side facing Customer (who receives inbound call)
Traced at Customer Prem

All the above 3 traces the Audio sounds fine, but on my cell phone I miss the first 2 seconds.

Ujjval Karihaloo

From: voiceops-bounces at voiceops.org [mailto:voiceops-bounces at voiceops.org] On Behalf Of Lee Riemer
Sent: Tuesday, January 05, 2010 10:15 PM
To: voiceops at voiceops.org
Subject: Re: [VoiceOps] Delay on RTP for Inbound Calls

Have you captured via wireshark and replayed?  Do you hear the same delay?  Is there a delay between the OK (answer) and the audio?

On 1/5/2010 8:22 PM, Ujjval Karihaloo wrote:
Hi Guys;

   We have noticed that sometimes when calling into our DIDs (Level 3 DIDs), there is a 2-3 second lag. i.e. Cell phone caller (party A) calls into a DID (Party B) that is on our network (Broadsoft Softswitch), Party B answers and sayd 1,2,3,4,5 - but the Party A only hears 4, 5...The part i.e. 1,2,3 get cut off.

Plus it is sporadic and difficult to reproduce, was wondering if folks have encountered this and any good troubleshooting techniques you can recommend.

Ujjval Karihaloo


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