作者candyhuang (candy)
看板PangSir
標題[問題][VoIP] ACK是否要透過proxy server轉送
時間Sat Dec 2 00:58:24 2006
請問ACK是否由Proxy server轉送呢?
跟據rfc3261 page12裡面的圖，ACK是直接由caller
送給callee，而不透過proxy server轉送。
page16的解釋
In this example, the ACK is sent directly from Alice's softphone
to Bob's SIP phone, bypassing the two proxies. This occurs because
the endpoints have learned each other's address from the Contact
header fields through the INVITE/200 (OK) exchange.
但是在course slide: 02_SIP_02.pdf 的page10
ACK是先丟給proxy 再到callee。
請問這兩種做法有什麼差異嗎
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 140.113.209.71
※ 編輯: candyhuang 來自: 140.113.209.71 (12/02 01:00)