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Gateway for low cost alphanumeric paging entry system

  • US 5,809,425 A
  • Filed: 06/07/1995
  • Issued: 09/15/1998
  • Est. Priority Date: 01/03/1995
  • Status: Expired due to Fees
First Claim
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1. A system for entering alphanumeric messages intended for a recipient subscriber to a paging system, the system comprisinga gateway for receipt and retransmission of the message to a terminal of the paging system, the gateway capable of providing verbal prompts to the user over a telephone line;

  • a hand-held paging entry device including an alphanumeric keyboard containing individual keys for the full alphabet, a speaker, and a memory capacity to contain a (i) an alphanumeric message for the recipient previously entered into the memory capacity, (ii) the telephone number of the gateway, (iii) the telephone number of the paging system, and (iv) the PIN of the recipient, the device also including a send button causing the device to generate a simplex audible tone sequence, composed of tones of 1400 and 1800 hertz, carrying the telephone number of the paging system, the PIN of the recipient and the previously entered alphanumeric message intended for the recipient;

    the gateway being capable of receiving and decoding the alphanumeric message from the audible tone sequence device over a telephone line and reformatting and transmitting the alphanumeric message over a telephone line in a conventional duplex paging message format to the paging system of the recipient.

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