Integrating a voice messaging function card over a public branch exchange (PBX) backplane
AssigneeInter-Tel, Inc.
InventorsIsrael J. Hersh, Frank Tanski
Life of this patent
Estimating the term…
Abstract
The voice mail system is embodied on a card (VxC) designed to be inserted into the PBX cabinet and communicate with the PBX processor via the backplane of the system. The VxC card includes a dual port RAM for providing two way communication between the VxC and the PBX. Through the allocation of memory areas, and control commands corresponding to the respective allocated areas, the PBX processor and VxC can communicate via the dual port RAM interface over the PBX backplane. The use of the dual port RAM communication over the PBX backplane eliminates the need for asynchronous RS-232 signaling to establish control and implement voice mail functions to a PBX system.
Claims18
A method for integrating a voice mail/messaging system into a public branch exchange (PBX) telephone system comprising the steps of:
- providing a voice messaging card (VxC) for connection to a communication backplane of the PBX telephone system;
- dedicating a parallel communication interface on said voice messaging card for providing parallel communications between said voice messaging card and said PBX system;
- establishing two-way communication between the voice messaging card and the PBX telephone system over the PBX backplane via the dedicated parallel communication interface;
- and
- controlling the voice messaging card to provide voice mail functions to users of the PBX telephone system.
A method for integrating a voice mail/messaging system into a public branch exchange (PBX) telephone system comprising the steps of:
- providing a communication interface on a voice mail card connected to a parallel interface of a communication backplane of the PBX;
- initializing the PBX to recognize the presence of the voice mail card;
- establishing two-way communication between the recognized voice mail card and the PBX over the PBX backplane via the communication interface;
- and
- controlling the recognized voice mail card to provide voice mail functions to users of the PBX telephone system.
Dependencies are inferred from the claim text.