'Re: [SR-Users] Media-proxy Query'

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List:       openser-users
Subject:    Re: [SR-Users] Media-proxy Query
From:       Samir Kundu <samir_kundu () samirkundugroup ! co ! uk>
Date:       2014-01-30 14:32:32
Message-ID: 5979384891174846B767A89DE084E6B016EAC7F28B () THHS2E12BE9X ! hostedservice2 ! net
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Hello Nandini

First of all allow me to introduce my-self to you, my name is Samir and I based in \
the England.

I run a small company and the main activities is building bespoke server also \
importing in to Europe VoIP related phones + Wi-Fi mobile handsets and ATA(s).

The reason for me to contact you, that I have notice your activity on Kamailio forum.

I am in the process establishing marketing bespoke Software(s).

My current project is a Cass 5 SoftSWITCH, which would be intended for any Telco \
companies providing services to end-user.

I am would be very interested in discussing with you in order to developing a carrier \
grade Cass 5 SoftSWITCH for resale.

So, should you be interested in my proposition then please let me know.

Regards

Samir

Samir Kundu
3 Beechwood Terrace
Sunderland SR2 7LY, UK

Tel: +44 191 551 8486 OR +44 191 538 8280
Samir_kundu@samirkundugroup.co.uk
________________________________________
From: sr-users-bounces@lists.sip-router.org [sr-users-bounces@lists.sip-router.org] \
                On Behalf Of Nandini madhu [sermj2012@gmail.com]
Sent: 29 January 2014 10:48
To: sr-users@lists.sip-router.org
Subject: [SR-Users] Media-proxy Query

Dear All,
Greetings,

I have configured Kamailio (4.0.3) with mediaproxy server, with this set-up \
audio/video calls are going good and hence NAT issue has solved. I have used two soft \
clients: 1) IMSDroid 2) Bria. But i have a query about media-proxy statistics i.e in \
the syslog, the info about media-proxy activity is shown as below:

Case 1: when Call between two IMSDroid clients.

caller_codec : 'Unknown(73)'

callee_codec : 'Unknown(73)'

callee_ua : 'unknown agent'.

Case 2 : When call between two Bria clients.

'callee_ua': 'unknown agent'.

(Calls using Bria clients media-proxy's syslog shows Audio codec names, but using \
IMSdroid clients it is showing 'Unknown' for Audio codec names ).

Find the attachment below for the full syslog about the mentioned unknown behaviour. \
And also find my kamailio.cfg file.

And also logging in the syslog as shown like RTP: Unknown , RTCP: Unknown.

In this context, there is a jitter in audio calls and pixelled video sometimes, So is \
there any wrong with the above mentioned "unknown' factor in this problem of \
jitter/pixelled audio/video calls ? (AFAIK these payload type 73 (i.e 72-76) is \
reserved for RTCP conflict avoidance. right? )

What could be the problem for this 'Unknown' issue?
How can i solve this issue ? Anything can be done in kamailio script?
And how these RTCP payload types (72-76) plays a role in audio/video calls?

Any suggestions will greatly help. please help me in clarifying these issues.

Thanks in advance.

Regards,
Nandini

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