asterisk users - Mar 2016 - Differences between Chan_SIP and PJSIP with NAT and STUN

So I see:

EXTERNAL_SNOM_IP -> EXTERNAL_ASTERISK_IP   (UDP,  length 218, src: 60798,
dst 11128)

EXTERNAL_ASTERISK_IP -> INTERNAL_SNOM_IP   (UDP, length 218, src: 11128 dst
60478

So i see udp from the phone, but there's no audio.


I do also see some packets ::

EXTERNAL_ASTERISK_IP -> EXTERNAL_SNOM_IP (ICMP, length 246, Destination
unreachable (Host administratively prohibited)
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Chirag Desai wrote:
> So I see:
>
> EXTERNAL_SNOM_IP -> EXTERNAL_ASTERISK_IP   (UDP,  length 218, src:
> 60798, dst 11128)
>
> EXTERNAL_ASTERISK_IP -> INTERNAL_SNOM_IP   (UDP, length 218, src: 11128
> dst 60478
>
> So i see udp from the phone, but there's no audio.
If "rtp set debug on" shows no packets being received then they are
not
being read off the socket, so I'd check the system and make sure there 
really is no firewall like I said. Once packets start getting received 
then we'll change the target address and audio will flow.

It may even be that when using TCP or UDP you have some sort of helper 
which is opening up the right firewall ports and when TLS is in use it 
can't see the traffic and thus doesn't.

-- 
Joshua Colp
Digium, Inc. | Senior Software Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - US
Check us out at: www.digium.com & www.asterisk.org

You were right. I had non-default rtp ports open in iptables. Edited
rtp.conf et voila. Everything seems to be working.

Thanks so much for your patience and guidance!

Have a lovely eening.
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>>  check the system and make sure there really is no firewall like I said
> You were right.
Stick around on the list long enough and you'll realise the truth... he
always is ;-)

Pete