Call message recording for telephone systems

Details Call message recording for telephone systems Call message recording for telephone systems

H - Electricity

04

M

H04M 15/10 (2006.01) H04M 15/00 (2006.01) H04Q 3/00 (2006.01)

Patent

CA 2092590

The EMI message record generated for interexchange telephone toll calls is enhanced via the addition of a primary interexchange carrier (PIC) indicator, whose value provides an indication as to whether a terminating subscriber has a particular interexchange carrier as his/her PIC. The PIC indicator may be used by the interexchange carrier when bills are rendered for its subscribers--for example, to provide different billing treatment for calls that were made over that carrier'snetwork to terminating subscribers whose PIC is, in fact, that very carrier, as opposed to calls that were made to subscribers with a different PIC.

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