[cisco-voip] RTP only one way?

[Kevin Thorngren]

Hi Gerd,

Typically one way voice issues are due to IP Routing issues.  Can the  
5300 ping the SIP Phone?

This URL should help you diagnose the problem.
http://www.cisco.com/en/US/tech/tk652/tk698/ 
technologies_tech_note09186a008009484b.shtml

Kevin
On Apr 29, 2005, at 6:49 AM, Gerd Feiner wrote:

> Hi there,
>
> we have an AS5350 and using as a SIP-Gateway to the PSTN.  Now, there  
> is an intriguing issue:  SIP -> PSTN voice is audible, and there is an  
> RTP stream from the SIP-device - SIPURA - to the mediagateway.  But  
> there is no stream in the SIP direction coming from the AS5350.  I  
> already found the
>
> voice rtp send-receive
>
> command - but it didn't do the trick. As of now, I wasn't able to  
> ascertain the source of the problem.  It doesn't matter who is  
> initiating the call, it's always the same effect.
>
> Don't know which part of our config you need, but here are a few:
>
> voice rtp send-recv
> !
> voice service pots
>  fax protocol pass-through g711alaw
> !
> voice service voip
>  signaling forward rawmsg
>  fax protocol pass-through g711alaw
>  sip
>   rel1xx disable
>   no call service stop
> !
> ...
> !
> interface Serial3/0:15
>  no ip address
>  isdn switch-type primary-net5
>  isdn incoming-voice modem
>  isdn sending-complete
>  no cdp enable
> !
> voice-port 3/0:D
>  bearer-cap Speech
> !
> dial-peer voice 1 pots
>  tone ringback alert-no-PI
>  application session
>  incoming called-number 143677..
>  destination-pattern .
>  translate-outgoing calling 20
>  translate-outgoing called 20
>  supplementary-service pass-through
>  no digit-strip
>  direct-inward-dial
>  port 3/0:D
> !
> dial-peer voice 2 voip
>  tone ringback alert-no-PI
>  application session
>  incoming called-number .
>  destination-pattern 143677..
>  voice-class codec 10
>  session protocol sipv2
>  session target ipv4:x.x.x.x
>  supplementary-service pass-through
> !
> !
> dial-peer search type voice data
> sip-ua
>  nat symmetric check-media-src
>  sip-server ipv4:x.x.x.x
>
> this isn't by far complete, but it seems to be the important part as I  
> figured.  In addition, I don't really understand all of the commands  
> set, most of it was from an example, part is from the ?-help system  
> and another part is from cisco's voice config guide ...
>
> Glad if someone could help.
>
> Brgds,
> Gerd Feiner
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