[01] WHAT IS THE SDF DIALUP/ISDN PPP MEMBERSHIP? The SDF DIALUP/ISDN PPP Membership is a Nationwide (USA + Canada) MODEM network consisting of over 10,000+ telephone numbers. This is a shared network of 'alliance partners' that allow SDF to have the maximum AREA Code/Exchange coverage for the cheapest price. This allows you to internetwork your computer using Point to Point Protocol (PPP) at v.92 (typically 52000 bits per second). Digital service via ISDN (64kb and 128kb) is available in most cities. There no setup fees, contract term limits .. infact, you'll get a discount if you prepay your dues for 3 or more months! Any computer that supports PPP can be used, no matter what Operating System is being used. This includes, but is not limited to the following operating systems: * MACOS 7.5 - X * NetBSD/FreeBSD * System V R4 * MS DOS 3.10 (see http://www.fdisk.com) * OS/2 * BeOS * Windows (all 500+ versions of it) * Various cellphones, PDAs and GPRS devices