[Asterisk-Users] Asterisk SIP Packet Time (20ms)

Andres andres at telesip.net
Mon Dec 22 13:15:41 MST 2003


Hi,

I have a question regarding the Asterisk Packet Time for SIP Calls.  It is 
hardcoded at 20ms but when I do an RTP Analysis on a stream it is clear that 
these packets are not spaced out at 20ms.  In general you see something like:

Packet 50 - Delay 50ms
Packet 51 - Delay 5ms
Packet 52 - Delay 5ms
Packet 53 - Delay 50ms
Packet 54 - Delay 5ms
Packet 55 - Delay 5ms

Is there anyway to space them out evenly at 20ms??

This is causing problems with the Sipura SPA2000 on our network.  The SPA does 
not like this and is treating many packets as lost packets (even though an 
Ethereal RTP Analysis trace shows they were not lost).

Regards,
Andres
http://www.telesip.net



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