[SIPForum-discussion] RE : how often are RTP packets sent out?

EXT / LORE MATHEAU Franck ext.lore.matheau at sncf.fr
Thu Feb 15 08:13:52 UTC 2007

On a basis of 20 ms sample, 50 RTP packets are sent in one second.
The payload is 160 bytes for G711, so 160 * 50 * 8 = 64 kb/s.
If you activate voice activity detection, you can get only one RTP packet in one second !!!!


-----Message d'origine-----
De : discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] 
Envoyé : mardi 13 février 2007 19:27
À : discussion at sipforum.org
Objet : Re: [SIPForum-discussion] how often are RTP packets sent out?

Hi again,

I mean the end to end delay of an rtp packet from a sending to recieving device.

Can I tell this from ethereal? As ethereal just does delay between 2 packets. I have read about using RTCP packets for this but to not fulling understand.

How can I tell how often the continous stream of RTP packets are being sent out? Can I take results with no audio that will still give a good idea of delay/jitter etc?


Email sent from www.virginmedia.com/email
Virus-checked using McAfee(R) Software and scanned for spam

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

More information about the discussion mailing list