Need to understand your question better. You are migrating the legacy PBX with Analog phones into IP PBX (CME system), and you would like to know what are the options on CME to support more than 4 analog phones? If this is the case,- You need to know...
7921 locale support is not available yet on CCME. Please check the CME locale download page from the folliwng link.http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/requirements/guide/cmelocal.htm
FYI:The Cisco Communication Manager Express version 4.3 will support hunt group call-blast on SCCP phones. (will be available with 12.5(2nd)BU Special Q1CY08)
7985 is supported with UC520 (or CME4.0 onward). To make a video call, you need to enable video capability under telephony service and enable viceoCap under ephone level.http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cm...
