<html><head></head><body><div style="font-family: Verdana;font-size: 12.0px;"><div>Attached is the sip trace and the wireshark pcap captures.</div>
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<div style="margin:0 0 10px 0;"><b>Sent:</b> Thursday, December 17, 2015 at 11:35 PM<br/>
<b>From:</b> "Michael Jerris" <mike@jerris.com><br/>
<b>To:</b> "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org><br/>
<b>Subject:</b> Re: [Freeswitch-users] No audio when using Cisco IP Phone 7942 with Freeswitch</div>
<div name="quoted-content">This description doesn’t make any sense, can you paste the actual sip trace?<br/>
<br/>
> On Dec 17, 2015, at 5:31 PM, Ayobami Adewole <ayobami@programmer.net> wrote:<br/>
><br/>
> The codecs in use in both cases is G711 ulaw, traffic capture using wireshark reveals that there was no rtp port negotiations, the reason for no audio, but if the 7942 initiates call port negotiation is done and audio is good.<br/>
><br/>
> On Dec 17, 2015 11:09 PM, Moishe Grunstein <max@nysolutions.com> wrote:<br/>
>><br/>
>> Can you check what codecs are being negotiated on a good and a bad call.<br/>
>><br/>
>> Thanks,<br/>
>><br/>
>> Moishe Grunstein<br/>
>> Tornado Computer Systems, Inc.<br/>
>> 212.400.7650 888.IPPBX.US<br/>
>> Service Request Email: support@nysolutions.com<br/>
>><br/>
>> Computer Networking * Managed Services * IP Video Surveillance * Network Assessments * Web Solutions * Voice over IP * Disaster Recovery * Network Security * Site Surveys * CMS<br/>
>><br/>
>> -----Original Message-----<br/>
>> From: freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] On Behalf Of ayobami<br/>
>> Sent: Wednesday, December 16, 2015 9:54 AM<br/>
>> To: freeswitch-users@lists.freeswitch.org<br/>
>> Subject: [Freeswitch-users] No audio when using Cisco IP Phone 7942 with Freeswitch<br/>
>><br/>
>> I have a Freeswitch installation with various models of IP phones, all models work fine except the 7942 model that when call is placed through to from other models, there will be no audio. However, if the 7942 initiates call to any other model the audio is fine in both directions. The network is not behind NAT as other devices work fine on the network, what could be the problem,?<br/>
>><br/>
>><br/>
>><br/>
>> --<br/>
>> View this message in context: <a href="http://freeswitch-users.2379917.n2.nabble.com/No-audio-when-using-Cisco-IP-Phone-7942-with-Freeswitch-tp7596195.html" target="_blank">http://freeswitch-users.2379917.n2.nabble.com/No-audio-when-using-Cisco-IP-Phone-7942-with-Freeswitch-tp7596195.html</a><br/>
>> Sent from the freeswitch-users mailing list archive at Nabble.com.<br/>
>><br/>
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> _________________________________________________________________________<br/>
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><br/>
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