Universal PSTN page entry protocol

• US 4,926,460 A
• Filed: 09/26/1988
• Issued: 05/15/1990
• Est. Priority Date: 09/26/1988
• Status: Expired due to Fees

• Current Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Trine, Linda M., Goldberg, Steven J., Gutman, Jose
• Primary Examiner(s): BROWN, THOMAS
• Application Number:
  US07/249,015
• Time in Patent Office: 596 Days
• Field of Search: 379/57, 379/67, 379/88, 379/97, 379/98, 340/825.48, 340/825.44
• US Class Current: 340/7.31
• CPC Class Codes: H04W 88/185 Selective call encoders for paging networks, e.g. paging centre devices

Abstract

A universal PSTN page entry protocol method and arrangement is disclosed whereby any type of incoming call may be accommodated at a single telephone input, be it a call from a standard telephone set or from a computer/VDT or PET terminal device. This permits an originating call to any type of pager whether tone-only, tone and voice, numeric and/or alphanumeric pagers.

Claims

1. Paging terminal apparatus with predetermined voice and machine based protocols and at least one telephone input for accommodating calls from standard telephone sets as well as calls from computer/VDT or paging entry terminal (PET) devices, comprising in combination:

paging terminal interface means having said at least one telephone input, DTMF detector and a modem;

control means for determining if any particular call is from a standard telephone set or a computer/VDT or PET terminal device;

said control means further including an inactivity time-out timer, means for setting said timer upon receiving an incoming call, and means for determining whether DTMF signals are received during the interval said inactivity timer is set; and

means for accommodating said particular type of call after determining the identity thereof and running either the voice or machine based protocol.

2. Paging terminal apparatus in accordance with claim 1 wherein said control means determines an incoming call is from a standard telephone set if DTMF signals are received during the interval when said inactivity time-out timer is set thereby activating said accommodating means to proceed with the voice based protocol.

3. Paging terminal apparatus in accordance with claim 1 wherein said control means determines an incoming call is from a computer or VDT/PET terminal if no DTMF signals are received during the interval when said inactivity time out time is set thereby activating said accommodating means to proceed with the machine based protocol.

4. Paging terminal apparatus in accordance with claim 2 wherein an incoming call to said paging terminal apparatus is routed through a PABX or a public switched telephone network.

5. Paging terminal apparatus in accordance with claim 2 wherein an incoming call includes either an alphanumeric message from a personal computer, a page entry terminal, or a video display terminal, a numeric message from a telephone set with DTMF signal generation capability, or a tone-only and/or voice message from a standard telephone set.

6. Paging terminal apparatus in accordance with claim 2 wherein said control means includes voice and storage means for accepting audio from an incoming call for storage and later retrieval by said control means.

7. A method for accommodating calls from standard telephone sets as well as those from computer/VDT or page entry terminal (PET) devices by a paging terminal having at least one telephone input and predetermined voice and machine based protocols comprising the steps of:

providing paging terminal interface means having said at least one telephone input, a DTMF detector and a modem;

determining if any particular call is from a standard telephone set or a computer/VDT or PET terminal device;

the step of call determination further including setting an included inactivity time-out timer upon receiving an incoming call and determining whether DTMF signals are received during the interval the inactive time is set; and

processing such particular call with the running of appropriate predetermined voice or machine based protocol in accordance with the type of the call after said determination of same.

8. A method for accommodating paging calls in accordance with claim 7 wherein determining if an incoming call is from a standard telephone set includes the further step of determining if DTMF signals are received during the interval when said inactivity time-out time is set and if so then activating said accommodating means to proceed with the voice based protocol.

9. A method for accommodating paging calls in accordance with claim 7 wherein determining if an incoming call is from a computer or terminal includes the further step of determining if not DTMF signals are received during the interval when said inactivity time-out time is set and if so then activating said accommodating means to proceed with the machine based protocol.

10. A method for accommodating paging calls in accordance with claim 7 wherein an incoming call to said paging terminal apparatus is routed through a PABX or a public switched telephone network.

11. A method for accommodating paging calls in accordance with claim 7 wherein an incoming call includes either an alphanumeric message from a personal computer, a page entry terminal, or a video display terminal, a numeric message from a telephone set with DTMF signal generation capability, or a tone-only and/or voice message from any standard telephone set.

12. A method for accommodating paging calls in accordance with claim 7 wherein an optional step is effected of first accepting audio from an incoming call for storage and later retrieval.