[SIPForum-discussion] 回复： Help in PRACK

[juyong li]

The response is gonna be retransmitted by UAS utill it receives a prack. If a reliable provisional response is retransmitted for 64*T1 seconds
   without reception of a corresponding PRACK, the UAS SHOULD reject the
   original request with a 5xx response.

--- 10年12月5日，周日, Sankar Senthil <frenzpark at gmail.com> 写道：

发件人: Sankar Senthil <frenzpark at gmail.com>
主题: [SIPForum-discussion] Help in PRACK
收件人: discussion at sipforum.org
日期: 2010年12月5日,周日,上午10:32

Dear Members,

When UAC sends Supported:100rel in the initial INVITE and UAS responds 180RINGING with Required:100rel

1) What will happen if the UAC doesnt respond PRACK ??

2) What will be the UAS behaviour if it doesnt receive PRACK??


Regards,
Senthil


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