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ALPHA-NUMERIC PAGING FROM A TOUCH-TONE TELEPHONE

IP.com Disclosure Number: IPCOM000005871D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2001-Nov-13
Document File: 2 page(s) / 119K

Publishing Venue

Motorola

Related People

Paul Christian: AUTHOR

Abstract

With today's display paging systems, the typical customer who wishes to page a display pager from a standard touch-tone telephone is offered limited flexibility. Presently, without the aid of a specialized alpha/numeric paging ter- minal at the sending end, one may only send a simple phone number to a display pager. This system offers the typical end user little information about who is trying to reach him, the subject, the importance, or the urgency of the page. This invention provides a method and system for allowing any alpha/numeric message to be sent from a standard touch- tone telephone offering the added flexibility absent in present systems. The invention offers substantial cost savings by eliminating the cost of a specialized data terminal for each customer wishing to send detailed pages, and also by eliminating unnecessary return calls for each page sent. Although this subject has been explored in several papers in the past, this method attempts to minimize the complexity of the required hardware while maintaining the simplicity of the key press sequences required for simple messages.

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MOTOROLA Technical Developments Volume 10 March 1990

ALPHA-NUMERIC PAGING FROM A TOUCH-TONE TELEPHONE

by Paul Christian

   With today's display paging systems, the typical customer who wishes to page a display pager from a standard touch-tone telephone is offered limited flexibility. Presently, without the aid of a specialized alpha/numeric paging ter- minal at the sending end, one may only send a simple phone number to a display pager. This system offers the typical end user little information about who is trying to reach him, the subject, the importance, or the urgency of the page. This invention provides a method and system for allowing any alpha/numeric message to be sent from a standard touch- tone telephone offering the added flexibility absent in present systems. The invention offers substantial cost savings by eliminating the cost of a specialized data terminal for each customer wishing to send detailed pages, and also by eliminating unnecessary return calls for each page sent. Although this subject has been explored in several papers in the past, this method attempts to minimize the complexity of the required hardware while maintaining the simplicity of the key press sequences required for simple messages.

System operation is governed by three modes of operation and an Interface Decoder Module (IDM) at the paging terminal. A block diagram of the IDM is shown below.

TELEPHONE LINE INTERFACE

1 I

FEEDBACK DIUF

CIRCUIT DECODER

PPY

RAY

YICRO-

PROCESSOR

PAGING

.TERUIN

Figure 1 IDM Block Diagram

0 Motorola. Inc. 1990 52

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MOTOROLA Technical Developments Volume 10 March 1990

   The IDM is a microprocessor based control module which decodes the MMF tones from the standard telephone and sends the decoded message to the paging terminal. To initiate a page, the paging system is accessed by telephone number. A simple code number is entered from the phone to activate the IDM. If no code is entered the IDM decoder circuits are shunted to allow alternate display pages from an alpha/numeric terminal. The pager cap code is then entered and the user proceeds to enter the message. Entering the message from the telephone would be accomplished in three basic modes.

1.

NUMERIC MODE: Once a connection to the IDM is established, the IDM is set up in the numeric mode. In this mode the touch-tone buttons O-9 are decoded simply as the integer printed on the button. If at any time ten seconds elapse without a button being pressed, the IDM terminates the page and no message is sent. Pressing the * button switches the IDM to the ALPHA mode. Pressing the #button switches the IDM to the preprogrammed words mode (PPW).

ALPHA MODE: The ALPHA mode is established by pressing the l button from either the NUMERIC or PPW modes. Once in the alpha mode any letter may be sent by pressing the desired button the appropriate number of times. That is, to indicate the first letter printed on the but...