In accordance with another preferred embodiment of the present invention, a computer program product having a computer readable medium with computer program logic recorded thereon includes {HEAD ~ code} for deriving {TAIL ~ one or more characteristics} of an originating source VoIP transmission from a first communication device at an originating network, code for encoding the one or more characteristics into VoIP transmission data, and code for transmitting the encoded VoIP transmission data to a second communication device at a terminating network, where at least one of the first and second communication devices are a wireless communication device 
In accordance with another preferred embodiment of the present invention , a computer program product having a computer readable medium with computer program logic recorded thereon includes { HEAD ~ code } for deriving { TAIL ~ one or more characteristics } of an originating source VoIP transmission from a first communication device at an originating network , code for encoding the one or more characteristics into VoIP transmission data , and code for transmitting the encoded VoIP transmission data to a second communication device at a terminating network , where at least one of the first and second communication devices are a wireless communication device
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