Thanks.  It sounds like we have the same model.  I don't believe that 
it can handle a voice chip, sadly.
Thanks.
PatAt 10:29 AM 6/30/2014, you wrote:
>         I have what I think is a Kenwood TM71. It is definitely
>not a TMV71 as that is 2-metre/70-centametres. I have had it for
>around 5 years and it is reasonably accessible with all the
>CTCSS and DCS tones. I don't know if it would take a voice
>synthecisor board but if it does, I may spring for it as it
>would make life easier even though it gives different-pitched
>beeps when you perform various operations on it.
>
>         The receiver is excellent as far as intermodulation
>products go and the CTCSS tones reverse-burst function as in
>what you get from a lot of Motorola equipment works most of the
>time.
>
>         I do remember downloading a PDF manual from Kenwood so
>this maybe what you are describing.
>         The transceiver has a push-button pad on the front of
>the microphone.
>
>         I think this is a ham version of a Kenwood commercial
>two-way radio system as the ones I have seen look exactly like
>this rig except the front-pannel knobs and buttons do different
>functions.
>
>         While I am at it, does anybody know if one of the
>Kenwood voice boards might work in this radio?
>
>Martin WB5AGZ
>
>Pat Byrne writes:
> > The mystery transceiver is a Kenwood TM271.  I have downloaded the
> > PDF version of the manual and as is so often the case, it isn't
> > terribly helpful.
> > Does anyone have any info on this transceiver?