From owner-freebsd-chat Tue Jan 23 18:27:26 2001 Delivered-To: freebsd-chat@freebsd.org Received: from mail.enteract.com (mail.enteract.com [207.229.143.33]) by hub.freebsd.org (Postfix) with ESMTP id 380DC37B400 for ; Tue, 23 Jan 2001 18:27:09 -0800 (PST) Received: from shell-2.enteract.com (dscheidt@shell-2.enteract.com [207.229.143.41]) by mail.enteract.com (8.9.3/8.9.3) with ESMTP id UAA16353; Tue, 23 Jan 2001 20:24:53 -0600 (CST) (envelope-from dscheidt@enteract.com) Date: Tue, 23 Jan 2001 20:24:53 -0600 (CST) From: David Scheidt To: Rob Cc: Christian Weisgerber , freebsd-chat@FreeBSD.ORG Subject: Re: GSM vs. CDMA In-Reply-To: <3A6E3744.F5490EFE@home.com> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-chat@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Tue, 23 Jan 2001, Rob wrote: :> I know that a bunch of Ex-US AMPS equipment has ended up in various bits of :> china, and Africa. It's cheap, eh? :> :> David :> : :And I hear the basestations are controlled by 80286's running Linux :) You seriously over-estimate the computing power that gets thrown at telephony. Motorola's (Well, DSC made the hardware) cell switch was driven by Z-80s until just a few years ago, when the upgrade was made to PPC chips. Of course, the RP-1 ran the Z80 code in emulation mode. Base stations have less computing power than that, but it tends to purpose built hardware. (Linux is unlikely -- (at least) two ofhte bigger infrastructure suppliers are UNIX source licensees.) David To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message