Patent ID: 8422408

Claim:
A method comprising: receiving a request from an Internet Protocol (IP)-based device to create a virtual extension of a plain old telephone service (POTS)-based telephone line; authenticating the IP-based device for association with the POTS-based telephone line; creating the virtual extension of the POTS-based telephone line to the IP-based device when the IP-based device is authenticated; enabling placement of a call by the IP-based device to a POTS-based device, associated with the POTS-based telephone line, enabling the placement of the call including: receiving, from the IP-based device, a call request to a POTS-based telephone number; connecting the call request to the POTS-based telephone line; and completing the call request to the POTS-based device; and enabling the IP-based device, via the virtual extension, to use an intercom feature associated with the POTS-based device.