SIP Diversion Field – Avaya SBC – 603 Decline
SIP Diversion Field – Avaya SBC – 603 Decline 4 steps to correct and update your SBC server to allow calls through By the end of this post, “SIP Diversion Field – Avaya SBC – 603 Decline”, you get to understand why a particular number is rejected from the Service Provider or ITSP with a 603 Decline response when they have screened implement. Learn what to do to avoid or […]
SIP Diversion Field – Avaya SBC – 603 Decline Read More »