Hello everyone i have integrated a Shoretel system with a Tadiran ipx 500 version 15.68.09 via the Qsig protocol.The Shoretel being the voicemail server. Everything is working fine with 1 exception. The message lamp will light on the Tadiran phones but will not extinguish. A shoretel engineer has looked at his end and says then are sending the message off code back to the Tadiran and reply from Tadiran says message accepted. Tadiran support wont talk to me due to the system not being version 16. Any help would be greatly appreciated.

Thank you,
Jim Williams
Field engineer