Cisco IP Phone 7925 connection issue WLC5508

[smartns04]

Hi all,

I am facining an issue with 7925 ip phones. My enviroment has a WLC 5508 , Lightweight 1041 and 1602 access points. The problem is that the ip phones occasionally flap wireless is connection.The signal comes and goes rapidly and it may take 1-2 minutes to connect again. When i do the survey i see that there is coverege and occasionally i see that there more than one access points on the same channel but usually on of them is at really low dbi. 

Any ideas what to look for?

[Leo Laohoo]

Make sure your wireless phones are running firmware 1.4(3) and higher.

[smartns04]

CP7925G-1.4.5SR1.3.LOADS

[Leo Laohoo]

Ok, that's a good start.  

1041 means there is only 802.11b.  So what is your wireless network like?  Is CleanAir enabled?

Where does the signal fluctuate:  802.11a or 802.11b radio?