Hi Nhan,

As I know, You can refer to http://www.kamailio.org/docs/modules/stable/modules/sst.html#idp37398500.

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Best Regards,
Shengy

At 2017-06-10 12:10:29, "Nguyen Tran Nhan" <nguyentran@nccsoft.vn> wrote:
Hi all,
I am working in basic call. I got common cause that opposite side (callee) lost connection and caller still hangging in the call. Is there any message to server to caller in this case?

Thanks,
Nhan