Abstract: The instant presence system authoritatively determines the present communication location of a subscriber, who may be at any of a number of possible locations. When the subscriber changes their location, they can use a subscriber communication device that is operational at their new location to update their point of presence on the telephone communication network. The instant presence system enables the communication network to complete a communication connection from a calling party to the called party with certainty. The calling party therefore can reach the called party with certainty by simply dialing a single listed directory number associated with the called party, relying on the instant presence system to complete the call connection to the called party, regardless of the present location of the called party.

Abstract: PSTN Internet Notification (PIN) services that can be provided as part of interconnecting IP and Public Switched Telephone Network (PSTN) systems with the intent of converging existing and creating new hybrid PSTN and IP services. PSTN Events Notification, based on well-defined PIN protocols, will promote interoperability of both the networks and systems built by different vendors.

Abstract: The instant presence system authoritatively determines the present communication location of a subscriber, who may be at any of a number of possible locations. When the subscriber changes their location, they can use a subscriber communication device that is operational at their new location to update their point of presence on the telephone communication network. The instant presence system enables the communication network to complete a communication connection from a calling party to the called party with certainty. The calling party therefore can reach the called party with certainty by simply dialing a single listed directory number associated with the called party, relying on the instant presence system to complete the call connection to the called party, regardless of the present location of the called party.

Abstract: A method for storing caller identification information as a log of answered and unanswered telephone calls at a central server. This call log server is accessible by the internet, so if a subscriber is traveling, he or she is still able to access and read a list of answered and unanswered calls to the subscriber's home station. Internet devices such as browsers that are internet telephony capable may return a call from the call log list using a point and click sequence. The call log may be processed from natural chronological order into a personal priority order such as: family, professional and everything else. This call log may also be forwarded via e-mail to the subscriber. Such e-mail forwarding may be either contemporaneously with call logging or periodically.