Hi All.
We have following setup--
User Phone=====>Wifi Device (non sip aware)========> WLC========>SIP Proxy
We found when User A and User B calling each other (both under above setup) call got connected but when User 1 sending SIP sessio refresh message UPDATE we found 3-4 Update message modify by Cisco WLC and adding fo charcater before Update message.
fo<UPDATE sip:211222@user.com
Not sure why WLC adding "fo" update character is this bug in OS as fo character added in 3-4 session refresh by WLC.
PLease help me if any one come across this porblem/
Amit