I have IP406V2 running Admin 3.1.29 and we use Adtran Netvanta 1224 PoE switches.
I had an issue with rebooting which was unrelated to Avaya altogether. The rebooting of the phones was caused by the In-Line power of the Adtran being turned off and back on.
Below is a summary of the fix:
I opened ticket # 775156 with Adtran on Thursday, October 20th 2005 to resolve the reboot issue of our Avaya 56xx phones. I worked with Travis who telnetted into our switches and confirmed there is a problem with the auto power enable threshold settings.
He explained the Avaya phones do not require much power to operate and the power required hovers around the threshold of the Netvanta 1224 (model # 1200580L1) auto power enable setting. Occasionally, the Netvanta incorrectly concludes those ports are not in need of power and turn it off, then immediately determines they do and kicks back on.
He administered the PTS program for our Raleigh and Syracuse switches. This program takes about 3-5 minutes to run and will reboot only those ports which require power, any ports providing data only will remain on during the firmware upgrade. Newer switches have this deficiency corrected. The units we purchased in July and August had this problem while the one we purchased in September was fine.
The PTS program can only be administered through and Adtran engineer. Firmware upgrades do not correct this problem.