[Freeswitch-users] No audio/dtmf from softphone behind NAT

[Brian West]

Most likely its in the RTP stream as RFC2833 which is the reason you're not getting anything plus I need a FULL sip trace not this abbreviated trace.

/b

On Apr 5, 2010, at 11:12 AM, Fraser Redmond wrote:

> I've taken another stab at this one way audio problem today.
> 
> I've run a wireshark capture, and looking at the RTP analysis it only has the down-stream, it doesn't record anything being sent upstream at all.
> 
> Below is the SIP graph, which shows RTP coming down, but none going up. But I don't know enough about SIP to know whether something is missing.
> 
> Any suggestions of what I should try now?
> 
> Would the dtmf's be sent in the sip packets, or in the rtp?
> 
> To preempt the easy answers and save some time:
> - ports are open on EC2 config, 
> - iptables turned off for the test,
> - RTP port range uncommented in switch.conf.xml,
> - softphone stun was set to stun.freeswitch.org
> 
> Cheers,
> Fraser

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