<div dir="rtl"><div dir="ltr">Hello Brian,</div><div dir="ltr"><br></div><div dir="ltr"> Thanks for your reply. Do you have any clue to give me about the parameters names in Polycom config? I tried playing on FS side, but nothing helps.</div>
<div dir="ltr">From the traces I see that Polycom answers without asking for encryptiom, but after return from hold it asks for encryption.</div><div dir="ltr"><br></div><div dir="ltr"> Thanks! __Yehavi:</div>
</div><div class="gmail_extra"><br><br><div class="gmail_quote"><div dir="ltr">2014-07-31 16:15 GMT+03:00 Brian West <span dir="ltr"><<a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a>></span>:</div>
<blockquote class="gmail_quote" style="margin:0 .8ex;border-left:1px #ccc solid;border-right:1px #ccc solid;padding-left:1ex;padding-right:1ex"><div dir="ltr">Please see the updated vars.xml on how SRTP works in 1.4.x, I suspect the phone tries to either disable or enable SRTP on the hold operation, there are a few settings related to rolling the keys in 3.x that may solve your issue.</div>
<div class="gmail_extra"><br><br><div class="gmail_quote"><div><div class="h5">On Thu, Jul 31, 2014 at 8:02 AM, Yehavi Bourvine <span dir="ltr"><<a href="mailto:yehavi.bourvine@gmail.com" target="_blank">yehavi.bourvine@gmail.com</a>></span> wrote:<br>
</div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="rtl"><div dir="ltr">Hi,</div><div dir="ltr"><br></div><div dir="ltr"> After upgrading from Freeswitch 1.2.23 to 1.4.6 my users started to complain that they cannot use hold on incoming sessions on Polycom phones; when they try to return from hold the call is disconnected and I get a console error "CODEC renogotiation error".</div>
<div dir="ltr"><br></div><div dir="ltr">Our Polycom phones are set to offer SRTP, thus, on outgoing call they use SRTP but not on incoming. In the above scenario, when the user tries to return from hold, the phone sends SAVP with SRTP, although the original call was not encrypted, and this causes this error message.</div>
<div dir="ltr">I had to disable SRTP on the Polycoms to make hold working again.</div><div dir="ltr"><br></div><div dir="ltr">BTW, this happens with Polycom 3.3.4 but not with 4.0.5 (but I cannot upgrade to it since it behaves erratically).</div>
<div dir="ltr"><br></div><div dir="ltr">Anyone else noticed this as well?</div><div dir="ltr"><br></div><div dir="ltr"> Thanks, __Yehavi:</div></div>
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<p><font face="courier new, monospace"><b><i><font size="4">Brian West</font></i></b><br><span style="font-size:x-small"><a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a></span></font></p>
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