[cisco-voip] CUCM 6 and mobile/soft SIP endpoints

[Bill Simon]

We're on the way to CUCM 6 and have no current plans to implement 
mobile/software SIP endpoints but just for some water cooler chatter I'd 
like to hear how folks are implementing.

Do you designate one CUCM subscriber as the registration point for your 
SIP clients and expose it through your firewall?  Or require VPN or similar?

Do you use the Cisco software or third-party SIP software?  Or both?

Did you go with workspace licensing in order to do it or are you paying 
for licenses for your individual soft clients?

Did you set up the extra presence components or is the presence engine 
built into CUCM 6 enough?

I know I'm not using all the correct Cisco terminology... pardon...

Bill