Handling emergency service calls originating from internet telephony

A network device comprising:

• a routing device to:
• receive incoming data including an emergency call from an IP telephony user device via a first data network;
• and
• route the received data including the emergency call along with routing device location information to a second data network.

A method comprising:

• receiving a dialed 9-1-1 call on a data network from an IP user device configured to be selectively used from a fixed location connection and from a plurality of remote connections, wherein the 9-1-1 call includes profile information;
• determining, from the profile information, that the dialed 9-1-1 call originated from one of the remote connections;
• identifying an end-user routing device used to route the dialed 9-1-1 call;
• designating an assigned public safety answering point (PSAP) based on the identified end-user routing device;
• redirecting the routed 9-1-1 call to a public switched telephone network (PSTN);
• and
• forwarding the redirected 9-1-1 call to the assigned PSAP.

A system for interfacing internet protocol (IP)-enabled emergency calls to a public 9-1-1 system, comprising:

• means for registering in a database, a fixed geographic location of a customer premise routing device;
• means for designating a public safety answering point (PSAP) in a 9-1-1 system for the customer premise routing device;
• means for receiving an emergency call routed through the customer premise routing device;
• means for determining that the customer premise routing device routes the received emergency call;
• and
• means for transmitting the received emergency call to the designated PSAP.