Patent ID: 6091969
Filing Date: 2000-07-18
Classification: H04W

Abstract:
In a wireless communication system providing communication services between a first mobile and a second mobile, the first mobile having a first mobile vocoder, the second mobile having a second mobile vocoder and the wireless communication system having a vocoder active mode of operation and a vocoder bypass mode of operation, a method of transitioning the wireless communication system from vocoder active mode of operation to the vocoder bypass mode of operation, the method comprising the steps of:providing a first signal within a compressed speech signal, the first signal including a vocoder bypass capability information and a vocoder type information;detecting the first signal the compressed speech signal;determining a compatibility of the first mobile vocoder and the second mobile vocoder based at least upon the vocoder type information;determining an incompatibility between the first mobile vocoder and the second mobile vocoder;negotiating a compatible vocoder type; andinitiating the vocoder bypass mode of operation based upon the compatibility.