04-02-2007 04:16 AM - edited 03-05-2019 03:14 PM
Hi all, can anyone tell me the main protocols that are used by voip, and the one i should look out for on my network when monitoring ?
04-02-2007 04:39 AM
Carl,
UDP is the protocol mainly used for VOIP traffic.It uses random ports from 16K -32K and uses the same to transport the voice traffic.
-amit singh
04-02-2007 05:12 AM
It uses the following
RTP - real time protocol (UDP as mentioned above)
Skinny - TCP 2000-2002
H.323 or MGCP for gateways
HTH, rate if ir does
Narayan
04-02-2007 06:52 AM
can you explain to me what each is used for ? ie how call is setup, what protocol it uses for this etc ?
04-02-2007 11:54 AM
Check out the following link. It will provide you with the information you requested.
http://www.cisco.com/univercd/cc/td/doc/product/voice/c_callmg/sec_vir/udp_tcp/41plrev2.pdf
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