(keitai-l) Re: GSM, PDC and proprietary systems

hi Benjamin,

I failed to find the docs, would you please give more details?

call forward:

in GSM, people used to have to have calls routed via the trunks
in the home network of a roaming subscriber, while the guy be
right on another platform of the same station.

how does Zebra do optimized routing?

cheers,

Ken


From: Benjamin Kowarsch <benjk@mac.com>
Reply-To: keitai-l@appelsiini.net
To: keitai-l@appelsiini.net
Subject: (keitai-l) Re: GSM, PDC and proprietary systems
Date: Wed, 19 Jun 2002 13:58:11 +0900

On Wednesday, June 19, 2002, at 02:02 , Ben Hutchings wrote:

>>heard that the Japanese are discussing about selecting networks on a per 
>>call basis, and maybe different network technologies,
>>... roaming without a home network?
>
>That's all very well if you only want to make calls.  But how can you 
>receive calls without signing-on to a network in advance?

ZEBRA roaming can do that.

Basically, when you sign on to a visited network, you are
automatically being assigned a local account and with it a new
temporary local number.  After that you get a message to tell
you what your temporary number is.

Then there are two different ways to get your callers to be
able to reach you:

1 - automatic change of your voicemail greeting to announce
the temp number.

so if someone calls you on your regular number, they get to
hear the announcement and they can then call you directly.
This doesn't require any cooperation by your service provider.

2 - a message is being sent back to your service provider and
a call forwarding service kicks in automatically to forward all
incoming calls to the temporary number.

Service provider can be your home network, a personal number
service (ie 07000 numbers) or even your fixed line provider.
So if someone calls you on your regular number, personal number
or home/office number, the call will be forwarded to
the temporary number.  This does require cooperation by your
service provider.

This is all automatic and transparent - all you'd have to do
is switch your phone on.

For more details you can check out http://www.espacenet.com,
and type in the patent number WO9894848 into the patent database
search engine.

kind regards
benjamin


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