dear all,
i have LCS2007 environment, there exchange2007 is also running ..
on my PC, i installed Communicatior2007 in order to connect LCS and IM with my Colleugues.
unfortunately , i couldnt ... when i push SIGNIN button i got "cannot sign in because the server is temporarily unavailable , if the problem consist contact yor sys admin" even i m the sysadmin, i cant solve it ...
from the advanced Config, i have traied both with automatic and manul (by server ip) .. when i try to ping to my server with FQDN, it respons me ... plz help me on where i m wrong ...

Thank you,
kadir