Patent ID: 7158509

Claim:
A communication system providing emergency call diversion to a messaging system, comprising: a Telephony-over-LAN system including an initial entry device for receiving a call from an external network for a client of the Telephony-over-LAN system; a messaging system interconnected with the Telephony-over-LAN system so that the messaging system remains operational during an outage of the Telephony-over-LAN system, wherein the initial entry device causes the call to be diverted to the messaging system for providing a response to the call during the outage of the Telephony-over-LAN system, the response provided to the call by the messaging system comprising recording at least one of a voicemail message and a caller identification for the call, the Telephony-over-LAN system including a home messaging system having stored therein a recorded greeting for the client, the messaging system periodically retrieving the recorded greeting from the home messaging system so that the recorded greeting is played by the messaging system in response to the call.