cisco wireless phone - cisco call manager

[amralrazzaz]

i need to ask some question regarding my cisco call manager express that i already have on cisco router 2911

1- regarding the attached specs i need to know if my manager support cordless or wireless cisco phones ?

2- if it support so what is the kind of it and is it available in the market or not ?

3- if not available in market or call manager  version is not support wireless phones , so should i upgrade the call manager ?

4- my current system supporting how many phone as MAXIMUM ?

 thanks

[amralrazzaz]

DEAR I HAVE QUESTION WITH THIS BELOW POINT

  I have 2 qty of 4-port Network Interface Module - FXO (Universal) and im using only 1 port from this and 1 from another and all other ports is empty , so im planning to upgrade my 2911 to 4331 so should i buy 2 hswic of fxo or only 1 is enough becuase the 1 wic is cost 2000 $ ?