[Sip] Sent 18x with 'require:100rel' but no PRACK recieved
" etherchen " <etherchen@foxmail.com> Fri, 19 August 2011 03:17 UTC
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From: etherchen <etherchen@foxmail.com>
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Date: Fri, 19 Aug 2011 11:17:39 +0800
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Subject: [Sip] Sent 18x with 'require:100rel' but no PRACK recieved
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Hi: I'm facing a ISUP - SIP interworking issue recently. I receive INVITE from remote SIP server and send IAM to ISUP side, ISUP reply ACM/CPG and then I send 18x with 100rel out, but I did not receive any PRACK from remote SIP server, and I re-send 18x to them. During this period, ISUP side send ANM to me. If connect the call, but my end haven't receive PRACK yet, it become a unreliable call. If disconnect the call, I should not base on ANM to release a call. If continue 18x re-transmission untill time-out, it will have charging issue. Because ISUP side start billing base on ANM already, but my SIP side haven't start charging because not answer. Thanks.
- [Sip] Sent 18x with 'require:100rel' but no PRACK… etherchen
- Re: [Sip] Sent 18x with 'require:100rel' but no P… honsha.narayan