I need some basic directions...
I want to create a device that connects to a cellphone through the carkit
socket, and activates the phone features. Something that works like the
Nokia keyboard that plugs in and lets you type SMS messages easily.

My T720 has the latest "5P" software but frequently sets my ringer
volume to zero when the phone is removed from the charger. The problem
occurs whether the phone is charged powered on or off. I have tried
the Master Reset with no improvement. Any ideas why this would happen?

We say that each Frequency Channel is separated by 200KHz. So this is
the effective Bandwidth.So 1/200KHz = 5 Microsec.
This channel is divided into 8 Timeslots.
So this 5 Microseconds must be equally  divided for getting 8

I'd really appreciate it if somebody can tell me where I can find
details about how the push-to-talk feature is implemented by Nextel.
Thanks,
Arvind

The 20/20 show last night exposed the dirty laundry:
"The carriers are well aware of the problems. "They know almost block by
block whether, when, and where you're going to get good coverage and
where there are going to be real holes and dead zones. But they don't

Does anyone know nextel i930 will be GSM with dual band
iden?(iden/GSM)
I do know nextel is based on TDMA but I was looking at i930 on ebay
and it says iden/GSM.

Someone was posting about problems with Bell South and Port 25.
Can we take that conversation offline since it isn't cellular in nature (per
se) and I seem to be having a similar problem.
--

Good maps are rare, yet the cellular carrers can make them.
<http://onlinestore.cingular.com/images/Western/Maps/Local%20Maps/03_26_0
3/>
has some, a year out of date, but better than you'll find in any store,

Does anybody know how to force cell phone to switch to neighbour cell or
how to obtain Cell ID of neighbours cells? I would like to use AT command
or something similar.
VKR

Anybody know how to charge a battery that has been connected to a phone
unused for about a year. Charger doesn't charge it. Battery is a Ni-MH type
battery
Phone is Nokia 3210

does anybody know of a good place where free polyringtone are available?
thanks

My girlfriend's mother lives in an area with poor reception,
especially indoors.  I recently hung a little metal bracket from
suction cups on her bedroom window, stuck one of those 3dB magnetic
mount cell antenna's intended for a car roof on it, and ran the wire

Hey all,
I am trying to find a complete compendium of phones in the world, does
anyone here happen to know of a database or something database like which
contains all the device profiles (so the screen size, useragent, supported

I just purchased a Motorola V300 which is a great phone but seems to
rank at the high end of the radiation spectrum compared to other
phones. I have seen a lot of radiation shields being sold but my
question, how do they work exactly?  Do they just fit over the phone?

Which wireless providers offer 7pm nights, even as an extra ($$) option?