Abstract: A notification message is sent back to the originator or an e-mail message whenever the e-mail message is subsequently forwarded on to a second addressee. New data fields in an RFC compliant message header are read by the e-mail programs handling the message, the fields identify the message originator as one that should have its subsequent retransmission notified to the originator.

Abstract: A method and apparatus for identifying a caller who does not provide caller identification on an unanswered call. The caller is asked to record his/her name (or some other characteristic utterance). If the call is unanswered, the record is retained and can be accessed by the called party when that party requests his/her stored voice mail. Advantageously, even on unanswered calls, the identity of the caller can be presented to the called party when that called party requests stored voice mail messages, even if the calling party has private service.

Abstract: An IP services switch that supports packetized voice traffic in the form of voice packets from a plurality of enterprises having a plurality of endpoints some of which can use the same IP addresses. The IP services switch includes a plurality of NAT tables, each of which corresponds to a separate enterprise network for providing header and payload IP addresses which are unique to the services switch for the voice packets corresponding to each separate enterprise endpoint. A method of NAT in an intermediate service provider network for header and payload IP addresses in VoIP voice traffic packets is also provided.

Abstract: An IP services switch that supports packetized voice traffic in the form of voice packets from a plurality of enterprises having a plurality of endpoints some of which can use the same IP addresses. The IP services switch includes a plurality of NAT tables, each of which corresponds to a separate enterprise network for providing header and payload IP addresses which are unique to the services switch for the voice packets corresponding to each separate enterprise endpoint. A method of NAT in an intermediate service provider network for header and payload IP addresses in VoIP voice traffic packets is also provided.

Abstract: A method for changing the call handling capacity of a telecommunications switch requires authorization from an external source, such as a telecommunications equipment manufacturing company (TEMC). Each switch purchased from the particular switch manufacturer includes a customized upgrade security protocol which limits access to data bus blocks associated with integrated digital carrier units of the switch. To alter the upgrade security program, an authorization code must be retrieved from the TEMC. The authorization code is then entered into the switch, and used to automatically alter the upgrade security protocol so that previously blocked data buses may be activated.