would love to hear if anyone has any additional information on this. we recently moved to cisco 8821 wireless phones. have been experiencing the network drops, unregistering, one party not being able to hear the other, and issues with using different ringtones on lines.
aruba iap 105, 205 and 135
firmware 6.4.4.8-4.2.4.9_61734
firmware rootfs8821.11-0-3SR6-15
call manager System version: 11.5.1.13901-3