From owner-freebsd-isp Fri Dec 5 12:51:04 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id MAA07130 for isp-outgoing; Fri, 5 Dec 1997 12:51:04 -0800 (PST) (envelope-from owner-freebsd-isp) Received: from kjsl.com (Limpia.KJSL.COM [198.137.202.3]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id MAA07122 for ; Fri, 5 Dec 1997 12:51:01 -0800 (PST) (envelope-from javier@kjsl.com) Received: (from javier@localhost) by kjsl.com (8.8.5/8.8.5) id MAA19412; Fri, 5 Dec 1997 12:50:55 -0800 (PST) Date: Fri, 5 Dec 1997 12:50:55 -0800 (PST) Message-Id: <199712052050.MAA19412@kjsl.com> From: Javier Henderson MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: jdm@cbemg.cb.lucent.com Cc: freebsd-isp@freebsd.org Subject: 56k modems In-Reply-To: <9712051413.ZM15292@cbemg> References: <9712051413.ZM15292@cbemg> X-Mailer: VM 6.33 under Emacs 19.34.1 Sender: owner-freebsd-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk jdm@cbemg.cb.lucent.com writes: > What equipment do I need on my end to use > the 56k modems? As I understand it, a digital > line is required so that must mean a channelized > T1 and some sort of channel bank to demultiplex > the line. Any help or pointers are appreciated. Channel banks usually end up with d/a conversions, which is what you must avoid in order to support 56K modems. Various router vendors have several products. I work at Cisco, the AS5200 and AS5300 both support 56K modems. Also, be aware that there are two competing standards at the moment, X2 pushed by USR/3Com (they're the same company now) and Kflex, pushed by Rockwell, et al. Cisco gear supports Kflex at the moment, though I believe just about every vendor out there stated they will support whatever standard becomes, well, standard early next year. -jav (not a Cisco spokesperson)