<div>We are seeing an issue where when call are are transfered from our Unity to Verizon SIP trunk calls will fail. Call that get transfered back to Verizon will require a diversion header that contains a authorized ANI and from our CUBE IP address. We have this working with calls to IP phones that transfer back to the PSTN. Unity is not providing a Diversion header. Has anyone else run up against this issues and resolved?</div>
<div><br></div><div>Call flow</div><div><br></div><div>PSTN(Verizon SIP) --> CUBE(SIP) -->UCM 8.5(SIP) -->UCX8.5 (Xfer to PSTN) -->UCM 8.5(SIP) --> PSTN(Verizon SIP)</div><br clear="all">Best Regards,<br><br>
Mike Lydick<br><br><br>