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Reply To: ATA 186(h323) behind NAT


Is not the same, we just did a test passing a SIP call trought three concatinated routers, and the call goes trought like a champ, without any change on the routers.

On the other hand, with H323, it is a miracle to make calls from behind one NAT.

I use only H323 so far, but I am impressed with SIP.