[asterisk-users] Cisco to Asterisk migration

[Femi]

Hi Guys,
I have client with a Cisco 2690 call manager solution that wants to upgrade
but cannot stomach the costs of continuing with Cisco

The installation will go up to 100 users
The client currently has about 40 Cisco phones and would like to continue
with these phones with the odd Polycom

I'm looking at plugging in an Asterisk box and using the existing Cisco box
as a PSTN gateway only

Has anyone on the list done this?
Any pitfalls or tips you would like to share?


Thanks

Femi