RE: Cell phone harness connections

[Mark Quinn/HNS <Mark_Quinn@notesgw.hns.com>]

Anthony K.B. Chan writes:

>The Nokia 2160 is different from the 2120 and the AT&T 6650....
> the one I have is IS-136 compliance which is the lastest D-AMPS,
> it has digital voice and digital control channel and it goes into
> to sleep mode when it is on standby, as <snip>
> I believe the vocoder is different between the IS-54 and IS-136 
> system. I am not using a handfrees kit or 3 watt booster. 

Believe me Anthony, I know of what I write ... Yes, your phone is
an IS-136 phone (we have many of them at work) and I have used
a couple of them briefly in my car (A4) during drive testing without 
problem (I talked about the 2120 in my car 'cos that's the one I
use all the time).  You are not using a car kit so that can't be the 
problem, thus I would check the phone itself or your stereo installation.  
BTW the 2160 does NOT have the new ACELP vocoder.  We are 
only just working with Nokia now on testing prototypes of their 
ACELP phone (I don't know a model number).   The 2160 uses 
the VSELP (standard IS-54 TDMA-3) vocoder.

-Mark Quinn
Hughes Network Systems
Digital Cellular Networking Group