Re: GSM 850 or 900?

On Thu, 25 Aug 2005 09:33:08 -0700, DaveC <me@privacy.net> wrote:

>EGSM covers a little wider spectrum than GSM, right? I presume that EGSM 900
>phones and GSM 900 phones are compatible with both types of services (EGSM
>and GSM). Is this right?
EGSM tacks 10Mhz worth of channels (50) onto the system. an EGSM phone
will work just fine with a GSM system, a GSM phone in theory will
work on an EGSM system provided the system is not near capacity. I.E.
if on a handoff, the only channels available in the next cells are in
the EGSM part of the spectrum, the call will be dropped.

Consequently most EGSM 900 operators try to keep the BTS in the basic
GSM part of the band. However I am not aware of any phones made in the
past 5 years that don't support EGSM.
>
>Thanks,