Ethereal-users: Re: [Ethereal-users] RTP Analysis: Error: "Can't save in a file:Unsupported code
I will try your display filter suggestion and post my results later
this evening. Also, if you like i can include a capture file for any
coder who may want to address the issue directly in the product.
Thank you all for your replies.
-Erik
> I guess that the RTP-stream contains not just packets with payload type 0 (G.711 U-law) or payload type 8 (G.711 A-law)
> but also packets with another payload type.
> When DTMF digits are sent then they can be sent with a special codec (RFC 2833 RTP Events).
> Probably there is packets with a dynamic payload type in the range 96 to 127.
>
> You could probably avoid the problem by first using a display filter to only select the other packets that you
> need and then save only the displayed packets with "Save As..." and then load that file and analyze it.
>
> The filter could maybe look something like:
> sip or sdp or h225 or h245 or rtp.p_type==0 or rtp.p_type==8
>
> However not a really nice solution, so we should probably try to find a real solution to your problem (e.g.
> alerting the user that the stream contains a mixture of payloads and that only the G.711 packets will be saved to
> the au-file).
>
>
