[SIPForum-discussion] maxptime for media description

Nitin Kapoor nitinkapoorr at gmail.com
Fri Jan 15 20:35:14 UTC 2010


"Maxptime" is the maximum amount of media which can be encapsulated in
a payload packet, expressed as time in milliseconds. The time is
calculated as the sum of the
time the media present in the packet represents.  The time SHOULD be a
multiple of the frame size. If this parameter is not present, the
sender MAY
encapsulate any number of speech frames into one RTP packet.

Nitin Kapoor

2010/1/15 <lbq100 at gmail.com>

> hello everyone,
> I am puzzled about the relationship between this two attributions and the
> codec formats in a media description.
> when we send an offer , we may give a codelist for one type of meida. but
> maxtime just have one. If the formats in the list have different ptime (i.e
> EVRC is 20, G729 is 10) , what the meaning of mazptime?
> _______________________________________________
> This is the SIP Forum discussion mailing list
> TO UNSUBSCRIBE, or edit your delivery options, please visit
> http://sipforum.org/mailman/listinfo/discussion
> Post to the list at discussion at sipforum.org
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://sipforum.org/pipermail/discussion/attachments/20100115/176a6744/attachment-0002.html>

More information about the discussion mailing list