×

Automatic voice prompts in a land mobile radio system

  • US 5,787,345 A
  • Filed: 03/12/1997
  • Issued: 07/28/1998
  • Est. Priority Date: 06/10/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method for advising a mobile radio user in a land mobile radio system, which has a plurality of cells, that the users radio has checked-in to a local cell when the user'"'"'s radio was not previously assigned to the local cell, wherein each cell in the system has a switch, a plurality of repeaters and each mobile radio is assigned to a particular cell when the mobile radio is in communication with the particular cell, the method comprising the steps of:

  • receiving at said local cell a check-in command via a control channel from one of said mobile radios which did not have an established assignment to said local cell in said system, and which said mobile radio does not have a voice channel established to said local cell,selecting a source within the switch at said local cell for a recorded audible voice prompt after receipt of said check-in command, wherein said voice prompt serves to produce when received at a mobile radio an audible announcement which identifies the local cell,establishing a voice communication channel between said source and one of said repeaters in said local cell, andtransferring said voice prompt from said source through said voice communication channel and said one repeater for transmission to said one mobile radio for producing said audible announcement at said one mobile radio.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×