<div dir="ltr">Thanks Serge, I'll give this a whirl and see if it works as a temporary solution - really appreciate you pointing out that option</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, 28 May 2019 at 12:38, Serge S. Yuriev <<a href="mailto:me@nevian.org">me@nevian.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi,<br>
<br>
I think you have to use something like this towards IVR<br>
<action application="export" data="nolocal:sip_unhold_nosdp=true"/><br>
<br>
<br>
On 28/05/2019 12:20, Callum Guy wrote:<br>
> Mike, Sagar,<br>
> <br>
> Thanks for your responses.<br>
> <br>
> I've understood from this that the consensus is that I am dealing with a <br>
> misbehaving remote device and as such should not be looking to change <br>
> anything on my FreeSWITCH setup to resolve.<br>
> <br>
> RFC3264 <<a href="https://www.ietf.org/rfc/rfc3264.txt" rel="noreferrer" target="_blank">https://www.ietf.org/rfc/rfc3264.txt</a>> (6.1) suggests that the <br>
> initial behaviour is acceptable and valid - FreeSWITCH is sending <br>
> sendrecv but the remote is responding sendonly. f this is triggering the <br>
> state change in FreeSWITCH would it not be to a state of recvonly as the <br>
> remote has informed us it will only be sending at this time? If anything <br>
> I would have thought that the subsequent transaction would result in <br>
> FreeSWITCH reporting that it is in recvonly mode rather than sendonly? <br>
> Having said that I can see that with this scenario I am dealing with <br>
> where all RE-INVITE transactions are late SDP I don't see how we would <br>
> overcome this configuration FreeSWITCH side.<br>
> <br>
> Unfortunately I am have no communication path with the remote provider <br>
> at this time. On that basis I will have to look at intercepting on our <br>
> SIP proxy and manipulating the SDP manually to handle this scenario - <br>
> I'm sure if I prevent the sendonly from coming through then the issue <br>
> will not surface. I am a little concerned about a blanket change which <br>
> prevents sendonly on all late SDP requests however I can't immediately <br>
> see a scenario (i.e. normal call hold) where this would be useful as <br>
> hold actions should be sent on the RE-INVITE itself. If anyone is aware <br>
> of a scenario where sendonly on late SDP would be necessary please let <br>
> me know!<br>
> <br>
> Thanks,<br>
> <br>
> Callum<br>
> <br>
> <br>
> On Sat, 25 May 2019 at 07:20, sagar malam <<a href="mailto:sagarmalam@gmail.com" target="_blank">sagarmalam@gmail.com</a> <br>
> <mailto:<a href="mailto:sagarmalam@gmail.com" target="_blank">sagarmalam@gmail.com</a>>> wrote:<br>
> <br>
> I think your issue is similar to this one :<br>
> <a href="https://freeswitch.org/jira/browse/FS-8573" rel="noreferrer" target="_blank">https://freeswitch.org/jira/browse/FS-8573</a><br>
> <br>
> I am also facing it but with different scenario.<br>
> <br>
> On Fri, May 24, 2019 at 10:26 PM Mike Jerris <<a href="mailto:mike@freeswitch.org" target="_blank">mike@freeswitch.org</a><br>
> <mailto:<a href="mailto:mike@freeswitch.org" target="_blank">mike@freeswitch.org</a>>> wrote:<br>
> <br>
> <br>
> <br>
>> On May 24, 2019, at 8:54 AM, Callum Guy <<a href="mailto:callum.guy@x-on.co.uk" target="_blank">callum.guy@x-on.co.uk</a><br>
>> <mailto:<a href="mailto:callum.guy@x-on.co.uk" target="_blank">callum.guy@x-on.co.uk</a>>> wrote:<br>
>><br>
>> Hi All,<br>
>><br>
>> In short I have an established bridged call out to a 3rd party<br>
>> SIP IVR - this IVR appears to be performing 3pcc meaning I am<br>
>> receiving RE-INVITEs w/o SDP as the call plays prompts, goes<br>
>> to queue and when it is answered. For each INVITE FreeSWITCH<br>
>> responds with 200 with SDP and we get an ACK back with SDP.<br>
>> During the queue phase the ACK SDP contains a=sendonly - all<br>
>> previous SDP have implied sendrecv on both sides. All is OK at<br>
>> this stage. When the call is finally answered we get an INVITE<br>
>> w/o SDP and FreeSWITCH responds with SDP including a=sendonly,<br>
>> to which the remote replies a=sendrecv. Hence we get one way<br>
>> audio at the time when the conversation should be starting.<br>
>><br>
>> Can anyone help explain why FreeSWITCH would be switching to<br>
>> sendonly mode? I have enable_3pcc=true configured but<br>
>> otherwise this is a fairly standard/vanilla configuration. The<br>
>> behaviour I would expect is for FreeSWITCH to continue to omit<br>
>> the attribute and imply sendrecv.<br>
>><br>
> <br>
> "During the queue phase the ACK SDP contains a=sendonly”<br>
> <br>
> Freeswitch is NOT switching it.. the other side is.<br>
> <br>
> <br>
>> Are there specific variables which might allow me to manage<br>
>> the SDP attributes?<br>
>><br>
>> Please find a trace log attached.<br>
>><br>
>> Platform:<br>
>> FreeSWITCH Version 1.8.5-6-31281a0bf1~64bit (-6-31281a0bf1 64bit)<br>
>> Linux my.network 4.9.0-8-amd64 #1 SMP Debian 4.9.144-3.1<br>
>> (2019-02-19) x86_64 GNU/Linux<br>
>><br>
>> Let me know if I can offer any more details regarding the<br>
>> implementation, thanks,<br>
>><br>
>> Callum<br>
>><br>
>><br>
>><br>
>> *^0333 332 0000 | <a href="http://www.x-on.co.uk" rel="noreferrer" target="_blank">www.x-on.co.uk</a> <<a href="http://www.x-on.co.uk/" rel="noreferrer" target="_blank">http://www.x-on.co.uk/</a>> |<br>
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>> <sdp-sendonly.log>_________________________________________________________________________<br>
>><br>
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> <br>
> _________________________________________________________________________<br>
> <br>
> The FreeSWITCH project is sponsored by SignalWire<br>
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> Enhance your FreeSWITCH install with disruptive priced SMS and<br>
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> Build your next product on our scalable cloud platform.<br>
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> <br>
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> <a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br>
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> <br>
> <br>
> <br>
> -- <br>
> Thanks,<br>
> <br>
> Sagar<br>
> _________________________________________________________________________<br>
> <br>
> The FreeSWITCH project is sponsored by SignalWire <a href="https://signalwire.com" rel="noreferrer" target="_blank">https://signalwire.com</a><br>
> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN<br>
> services.<br>
> Build your next product on our scalable cloud platform.<br>
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> Join our online community to chat in real time<br>
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> Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services.<br>
> Build your next product on our scalable cloud platform.<br>
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> <br>
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> <br>
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> <a href="https://freeswitch.com" rel="noreferrer" target="_blank">https://freeswitch.com</a><br>
> <br>
<br>
-- <br>
Serge S. Yuriev<br>
Senior VoIP engineer<br>
<br>
<br>
_________________________________________________________________________<br>
<br>
The FreeSWITCH project is sponsored by SignalWire <a href="https://signalwire.com" rel="noreferrer" target="_blank">https://signalwire.com</a><br>
Enhance your FreeSWITCH install with disruptive priced SMS and PSTN services.<br>
Build your next product on our scalable cloud platform.<br>
<br>
Join our online community to chat in real time <a href="https://signalwire.community" rel="noreferrer" target="_blank">https://signalwire.community</a><br>
<br>
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<a href="https://freeswitch.com" rel="noreferrer" target="_blank">https://freeswitch.com</a></blockquote></div>
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