I have a new Norstar MICS system, all is fine, except for call forwarding to a sprint cell phone. When I set the call forward feature to on to a sprint cell phone (in a 7316e handset) and have a call come in thru a DID line to that handset, the call does get forwarded, but the "ringing" that a caller normally hears does not follow..they hear dead silence, but the receiving sprint phone does indeed start ringing, and when picked up, the call does complete.(FYI...this is a national issue for us)
No other cell phone network has this problem, if forward is set to a Verizon cell phone, the caller hears it ringing, and the cell phone rings as well, BUT not on a sprint cell, the caller hears dead silence, but the cell phone is ringing.
It has stumped AT&T, SPRINT, my PBX installer, for the last 4 months.
I suspect a timing issue in my new MICS, since all was well before it was installed, but I do not know what I can change to extend the timing to have it switch the call to the Sprint cell towers.
(AT&T and SPRINT, has monitored a call and the "ring passthru handshake signal" is missing...but no one knows how to fix it)
I hope someone here has seen a similiar problem, and can point me in the right direction. Thanx.
No other cell phone network has this problem, if forward is set to a Verizon cell phone, the caller hears it ringing, and the cell phone rings as well, BUT not on a sprint cell, the caller hears dead silence, but the cell phone is ringing.
It has stumped AT&T, SPRINT, my PBX installer, for the last 4 months.
I suspect a timing issue in my new MICS, since all was well before it was installed, but I do not know what I can change to extend the timing to have it switch the call to the Sprint cell towers.
(AT&T and SPRINT, has monitored a call and the "ring passthru handshake signal" is missing...but no one knows how to fix it)
I hope someone here has seen a similiar problem, and can point me in the right direction. Thanx.