[SIPForum-discussion] Muting issue on a SIP trunk with vendor

[Wayne Davies]

The signaling is very basic and on the surface appears normal / good. The
BYE that is sent by the original UAC has Q850 cause code of 10 which is
“normal call clearing” so again nothing sinister there. The only thing I
noted was the timing which was 31sec between INVITE and BYE – so could be a
timer firing – if the timing is consistent in multiple cases then debug of
the user agent needs to be done to determine why it is sending BYE, check
each point in the flow assuming there will be SBC, Proxy, B2BUA, other
involved.



Reason: MVTSLocal;cause=10;text="BYE received"



*From:* discussion-bounces at sipforum.org [mailto:
discussion-bounces at sipforum.org] *On Behalf Of *Shah Hussain Khattak
*Sent:* Tuesday, April 29, 2014 3:59 PM
*To:* discussion at sipforum.org
*Subject:* [SIPForum-discussion] Muting issue on a SIP trunk with vendor



Hello SIP Gurus,



I hope you all will be doing great. Currently, we are facing muting issue
on a SIP trunk with one of our vendor. I tried to check the traces, but was
not able to identify any parameter, which might be causing the problem. So
i am attaching the .pcap trace of one call on which we got muting for your
keen eyes to kindly find some abnormal parameter which might be causing the
problem.

*Kind Regards, *

*An ounce of practice is worth more than tons of preaching. (Mohandas
Gandhi)*

*"In three words I can sum up everything I've learned about life: it goes
on." (Robert Frost)**Shah Hussain*

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