Re: Routing wars pending?

Geert Jan de Groot <> Tue, 21 November 1995 11:56 UTC

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To: Keith Mitchell <>
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From: Geert Jan de Groot <>
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Subject: Re: Routing wars pending?
In-Reply-To: Your message of "Mon, 20 Nov 1995 13:16:12 GMT." <>
Date: Mon, 20 Nov 1995 20:53:20 +0100
Precedence: bulk

On Mon, 20 Nov 1995 13:16:12 +0000  Keith Mitchell wrote:
> In <>om>, <> 
> A better telephony example perhaps is that of GSM roaming, where
> there is no mapping from a a "logical" 800 number to a physical
> geographic code identifying the end-point. Instead the phone is still
> addressed by it's home country and area code, even when it is
> in another country. I think the routing is currently done by host
> redirection.
> I suspect that currently roamed mobile phone use is sufficiently rare
> that there are not scaling problems with this approach at present,
> but with GSM growth comparable to Internet growth I think they may
> have a few headaches ahead...

GSM, at least in the Netherlands, uses the priciple that if you're out
of your 'region', that you pay the transit between the home-country and the
place you are. E.g. if a Dutch subscriber is in France and receives a call
from the Netherlands, then the caller pays mobile phone rates for a Dutch
mobile call, and the GSM owner pays a rate from the Netherlands to France,
i.e. the GSM owner pays for its mobility and the extra transit involved.

We could do the same with IP (encapsulating it), but somehow I feel that
this approach will never be popular, either with GSM or with IP...

Geert Jan