I have a customer requiring large number of analog phone connectivity with IP Phones, and it is a multi site implementation . each site requires mixture of both ip phones and analog phones.
For example, main site needs some 200 ip phones and 800 analog phoenes. Branche would need 5 ip phones and 25 analog phones.
While IP enabled hybrid PBX (non-Cisco) can cater for this requirement, what is the Cisco's option that we can have for this ?