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In the Call Flows below, the call is first sent to the SS7 User. The SS7 User is configured to redirect the call to the Redirected User and redirects the call. The SS7 User also sends either an ACM or CPG message in the backward direction with the redirection information. The parameters in the ACM or CPG message will determine how the redirecting information will be mapped back to the original SIP User. Also, the IMG can be configured to map the parameters back to the SS7 User in either the SIP Diversion Header or SIP History-Info Header.
Call Flow 2 - ACM mapped to 183 Progress
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