[cisco-voip] RTP only one way?

Yura Monchak yurun at portaone.com
Fri Apr 29 12:09:56 EDT 2005


Hello,

Gerd Feiner wrote:

> Hi Kevin,
>
> no there aren't any routing issues.  The AS can ping the sipura and  
> there are indeed RTP-packets from the AS to the sipura - about 1 
> every  two seconds, while there are many many packtes from the sipura 
> to the  AS5350 ... when debugging SIP the AS5350 also tells about 
> opening a  recv-only audio-stream:
>
> Apr 29 12:41:56 x.x.x.x 42940: Apr 29 10:48:30.444: sipSPIAddStream:  
> AddStream in idle state to open a 'recvonly' media session
>
> this is why I digged into and found that rtp send-receive command and  
> its exactly what happens:  voip can speak and is heard on pstn, but 
> not  vice versa.
>
> any ideas?

Try the same with 'no ip cef'. I remember that it helped me once when I
had the similar problems with IVR. RTP was received from IP, but never sent.
You can also check if you have any RTP flowing from cisco to sipura with
'debug voip rtp'.

--
Yura Monchak


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