<div dir="auto">Yes the end point phones are behind NAT but reach is behind a different NAT. Typically one or two phones at each location. NATs are different at each location so I'm sure this is why some work and some don't.<div dir="auto"><br></div><div dir="auto">None of them use STUN but this is because I never had to use STUN for any of these same runs points when registered directly to Asterisk.</div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 16, 2019, 2:07 AM Răzvan Crainea <<a href="mailto:razvan@opensips.org">razvan@opensips.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi, Todd!<br>
<br>
Can you provide a pcap of one of the calls that are not working?<br>
Also, are these clients behind NAT? Do they use STUN?<br>
<br>
Best regards,<br>
Răzvan<br>
<br>
On 10/15/19 9:01 PM, Todd Routhier wrote:<br>
> Problem: Calls from PSTN provider > Asterisk > OpenSIPs > SIP Endpoint <br>
> have intermittent audio issues. See below for details.<br>
> <br>
> I am a long time Asterisk user but extremely new to OpenSIPs.<br>
> <br>
> We are in the process of a migration from an older Asterisk server to a <br>
> newer version along with some other changes.<br>
> <br>
> First order of business is for us to offload all registrations from our <br>
> current 1.8.x Asterisk server to OpenSIPs 2.4.6.<br>
> <br>
> We have a setup that seems to be mostly working but intermittent audio <br>
> issues are what we are trying to eliminate.<br>
> <br>
> When I say intermittent, audio seems to work for a particular end <br>
> point in certain situations or it doesn't. For example, we have some end <br>
> points which have no audio at all such as my personal soft-phone. I <br>
> can't get audio on any of three different soft-phones on my laptop, no <br>
> audio in either direction. But, I have a Grandstream phone on the same <br>
> LAN which works perfectly every time, on every call.<br>
> <br>
> I have other end points which are Grandstream phones with perfectly <br>
> working audio in both directions, all the time, consistently.<br>
> <br>
> I have other Grandstream end points which work for the same type of call <br>
> every time, with audio in both directions but the same phone has no <br>
> audio on slightly different types of calls (hard to explain what I mean <br>
> by "types of calls").<br>
> <br>
> Ideally, we would not care about this working with Asterisk 1.8.x since <br>
> we are moving away from it but it's important for it to work as part of <br>
> our transition/migration.<br>
> <br>
> I had horrible audio issues at first were it was hardly working at all <br>
> or one way audio consistently. I fixed this by setting nat=yes in the <br>
> sip.conf for the context pointing to the OpenSIPs server. I couldn't <br>
> understand why this fixed it since the OpenSIPs server and the Asterisk <br>
> server both have static IP's and are NOT behind any NAT of any sort. <br>
> Only the end points registered to OpenSIPs are behind end points.<br>
> <br>
> Still I noticed that Asterisk was trying to send calls to the LAN IP of <br>
> the end points, so I tested nat=yes and it fixed most of the audio <br>
> issues with only the issues outlined above remaining.<br>
> <br>
> My next steps are to see if I have good audio if I push calls to the <br>
> newer Asterisk server then to the end points registered to the OpenSIPs <br>
> server. Even if that works, it does not solve my current need to make <br>
> this work with Asterisk 1.8.x at least until the migration is complete.<br>
> <br>
> Thanks in advance for any assistance with this.<br>
> <br>
> Regards,<br>
> <br>
> Todd<br>
> <br>
> <br>
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> <br>
<br>
-- <br>
Răzvan Crainea<br>
OpenSIPS Core Developer<br>
<a href="http://www.opensips-solutions.com" rel="noreferrer noreferrer" target="_blank">http://www.opensips-solutions.com</a><br>
<br>
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</blockquote></div>