I have a Panasonic KX-TDE200 PBX in remote location and CUCM cluster in HQ. Both sites connect using site-to-site VPN. I want to integrate the Panasonic PBX with the CUCM so that intersite calls are free. Can someone point me to the right document/instruction as to how this can be done.
You will need to equip the PBX with either VoIP interface, or ISDN BRI connected to a voice GW. Another possibility is PRI, but that is more expensive.
Anyway in most cases it cheaper and easier to convert legacy phones to Cisco.
I have IPCMPR trunk card which can be configured as VoIP interface. Since I have never done this thing before so just checking if somebody in the forum has simple step by step instructions.
