Abstract: Methods and apparatus for aggregating and distributing contact information for a user with multiple user identifiers in a plurality of domains. In one embodiment a set of user identifiers corresponding to a first user includes a first user identifier corresponding to a first domain and a second user identifier corresponding to a second domain. A request is made using the first user identifier for contacts associated in the first domain with the first user identifier and a request is made using the second user identifier, for contacts associated in the second domain with the second user identifier. An aggregated contact list corresponding to the first user is generated from a first contact list received from the first domain and from a second contact list received from the second domain. In some embodiments the aggregated contact list and associated user presence information is distributed to the first and second domains.

Abstract: Methods and apparatus for aggregating and distributing contact information for a user with multiple user identifiers in a plurality of domains. In one embodiment a set of user identifiers corresponding to a first user includes a first user identifier corresponding to a first domain and a second user identifier corresponding to a second domain. A request is made using the first user identifier for contacts associated in the first domain with the first user identifier and a request is made using the second user identifier, for contacts associated in the second domain with the second user identifier. An aggregated contact list corresponding to the first user is generated from a first contact list received from the first domain and from a second contact list received from the second domain. In some embodiments the aggregated contact list and associated user presence information is distributed to the first and second domains.

Abstract: Methods and apparatus for aggregating and distributing contact information for a user with multiple user identifiers in a plurality of domains. In one embodiment a set of user identifiers corresponding to a first user includes a first user identifier corresponding to a first domain and a second user identifier corresponding to a second domain. A request is made using the first user identifier for contacts associated in the first domain with the first user identifier and a request is made using the second user identifier, for contacts associated in the second domain with the second user identifier. An aggregated contact list corresponding to the first user is generated from a first contact list received from the first domain and from a second contact list received from the second domain. In some embodiments the aggregated contact list and associated user presence information is distributed to the first and second domains.

Abstract: Apparatus, and accompanying methods for use therein, for a telephony gateway intended for use, e.g., paired use, at opposite ends of a data network connection, in conjunction with at each end, e.g., a private branch exchange (PBX) for automatically routing telephone calls, e.g., voice, data and facsimile, between two peer PBXs over either a public switched telephone network (PSTN) or a data network, based on, among other aspects, cost considerations for handling each such call and called directory numbers, monitoring quality of service (QoS) then provided through the data network and switching (“auto-switching”) such calls back and forth between the PSTN and the data network, as needed, in response to dynamic changes in the QoS such that the call is carried over a connection then providing a sufficient QoS.

Abstract: Apparatus, and accompanying methods for use therein, for a telephony gateway intended for use, e.g., paired use, at opposite ends of a data network connection, in conjunction with at each end, e.g., a private branch exchange (PBX) for automatically routing telephone calls, e.g., voice, data and facsimile, between two peer PBXs over either a public switched telephone network (PSTN) or a data network, based on, among other aspects, cost considerations for handling each such call and called directory numbers, monitoring quality of service (QoS) then provided through the data network and switching (“auto-switching”) such calls back and forth between the PSTN and the data network, as needed, in response to dynamic changes in the QoS such that the call is carried over a connection then providing a sufficient QoS. To support auto-switching, the apparatus embeds, using call independent signaling, certain call-specific information, as non-standard data, within various conventional H.

Abstract: Apparatus, and accompanying methods for use therein, for a telephony gateway intended for use, e.g., paired use, at opposite ends of a data network connection, in conjunction with at each end, e.g., a private branch exchange (PBX) for automatically routing telephone calls, e.g., voice, data and facsimile, between two peer PBXs over either a public switched telephone network (PSTN) or a data network, based on, among other aspects, cost considerations for handling each such call and called directory numbers, monitoring quality of service (QoS) then provided through the data network and switching (“auto-switching”) such calls back and forth between the PSTN and the data network, as needed, in response to dynamic changes in the QoS such that the call is carried over a connection then providing a sufficient QoS. To support auto-switching, the apparatus embeds, using call independent signaling, certain call-specific information, as non-standard data, within various conventional H.