Getting Started Using FirstGear for the Model XM128U ISDN Digital Modem
1-2 Introduction
The Model XM128U modem has the following speed and compatibility features:
• Plug-and-Play support for a Windows
®
95 environment
• Full compatibility with both ISDN and remote public-switched telephone network (PSTN)
by way of ISDN
• Multiple signaling protocol compatibility with DSS1, 1TR6, NI-1, AT&T 5ESS, and Northern
Telecom DMS 100 network switches
• X.75, V.110, V.120, and Point-to-Point Protocol (PPP)
• B channel speeds of 56 Kbps (in-band signaling) and 64 Kbps (out-of-band signaling)
• 112 Kbps/128 Kbps channel bundling: MLP and Multipoint PPP (RFC1717)
• Hi/fn LZS compression (Stac)
• V.42bis data compression using the X.75, V.120, and bundle protocols
• Configurability using either FirstGear (a Windows 95 utility) or AT commands
• Automatic ISDN and analog call detection
• Two analog telephone jacks (analog adapters)
• Push-button switch for quick dial and teardown
• Easy-to-use FirstGear configuration software
• Flash EPROM for easy firmware upgrades
Xm128u_bk.fm Page 2 Wednesday, February 4, 1998 4:32 PM
