Andy Spitzer wrote:
> The num ports (2) in this case is correct, as it specifies
> both the RTP and RTCP ports. 8502 is for RTP, 8503 is for RTCP.
>
> As RTCP is implied, one could easily just drop the "/2" if that helps.
Hi Woof!
If I look at an example in rfc4566 section 5.14 is looks like the "/2"
indicates two streams:
m=video 49170/2 RTP/AVP 31
would specify that ports 49170 and 49171 form one RTP/RTCP pair
and 49172 and 49173 form the second RTP/RTCP pair.
I am not familiar with specific cases where this format is required or
recommended and I am trying to find out what sipXpage uses it for. Is it
needed because sipXpage terminates media stream from the caller and fans
out the page to multiple paged sets?
Alternatively, if there is no special need for this format, perhaps we
should consider removing it to help improve interoperability with ITSPs
and phone/gateway vendors if we find that some of them get confused when
faced with this format.
Thanks,
Mark.
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