Hello EveryBody,
I have 9*9971 with 1 KEM for each phone with external Power CUBE 4. Two from them behaves differently than others.
From time to time, those two phones reboots suddenely and reboots also when I unpluggs the Power CUBE-4.
My question is how is the behavior of Cisco 9971 when I have Cable plugged to 802.3af Switch and also connected via Power CUBE-4 ?
Regards
Driss
Not sure if these two help.
http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cuipph/9971_9951_8961/7_1_3/english/admin/guide/9971kem.html#wp1088380
http://www.cisco.com/en/US/partner/docs/voice_ip_comm/cuipph/9971_9951_8961/7_1_3/english/admin/guide/9971ins.html#wp1038652
Check the firmware etc is same on the phones?
Check the switch port power?
Cabling?
if problem persists you may need to open a TAC case.
Rgs
ashish