tkdslr
join:2004-04-24
Pompano Beach, FL
 ·Speakeasy
| reply to Andromeda451
Re: UDP not TCP
said by Andromeda451  :
Isn't VOIP based on RTP wrapped up in a UDP wrapper? So a TCP ping test may not reflect the situation accurately?
SIP uses both UDP and TCP.. ports 5060 & 5061
It can use either protocol. It will use TCP when UDP fails.
see »www.vonage.com/corporate/press_n···_04_17_0
In a route looping scenario, after UDP attempts will fail, and the TCP fall back will also fail (in an identifiable pattern).
"Ping", generally uses an (ICMP) packet, which uses the IP layer of the TCP&UDP/IP protocol. |
