Currently running a 7921 pilot with 10 users (90 more phones waiting to be deployed) using WiSM 4.0.206 with approx 70 1010/1020 airespace ap's. Professional Site Survey.
The problem I have is the 7921 constantly drops off the network, saying things like 'leaving service area' or just periodically re-registering with call manager. I also have issues of 1 way audio.. but i think the main issue is the continual dropp off of the clients. I have tried the 7921 profile in many different ways, a-only, a-preferred, b-g only etc but still experience the problem!
The strange thing is I have 7920 working perfectly on the same wLAN..! I did however experience similar issues during the early firmware. I think 4.0-03-01 resolved 90% of the issues..
anyone any ideas?