8. 0 Cellular Phone Systems 01 Cellular Voice Reference Model Mobile radio service was introduced in St. Louis in 1946. This radio dispatching system had an operator who patched the caller to the pstn. Later, imts allowed customers to dial their calls without an operator 218.01 Kb. 4
And Loans Table of Contents Any violators will be prosecuted to the full extent of the law. Printed in the U. S. A. Copyright 2004-2005. All rights reserved. Phone numbers can change periodically with out notice please refer to that states local 555-1212 directory 2.34 Mb. 27