Abstract: A method for routing calls between a third party telecommunications device (“TD”) and a subscriber TD associated with a primary service and a second line service (“SLS”) involves associating the SLS number of the subscriber, the primary number of the subscriber and the primary number of a third party via a common relationship number. Calls directed from a third party to the SLS number of a subscriber are routed to an SLS platform and redirected to the subscriber TD. Calls directed from the subscriber TD to the third party use the relationship number to route the call to the SLS platform. The combination of the SLS number and the relationship number identifies the third party calling number for call completion. Calls can be directed to and from an SLS number of a subscriber TD without having to coordinate the provisioning of a call through the subscriber's primary service provider.

Abstract: A method and system for the leveraging a reserved relationship number by an SLS platform and/or SLS phone module for the purpose of performing special operations other than making an SLS call available for termination at a subscriber TD and/or a third party TD involve associating the SLS phone number of the subscriber, the primary number of the subscriber and a next set of instructions via a common reserved relationship number.

Abstract: A voice mail system that allows for the delivery of voice messages by chunks, thereby optimizing the delivery of the information. When a subscriber attempts to listen to his or her voice mail message, the header information for the first voice mail message is down loaded and played back to the subscriber. While the subscriber listens to the header information, the next two blocks of data of the voice message are downloaded. Upon the completion of the playback of the header information, the first two blocks of the voice mail message are available for playback and the first block is immediately available for playback. As the subscriber listens to the voice mail message subsequent blocks of the first voice mail message, and optionally header information and blocks of subsequent voice mail messages are simultaneously down loaded.