NETGEAR XM128 ISDN - Manual (Page 22)

Reference Guide for the Model XM128 ISDN Digital Modem
1-2 Introduction
The Model XM128 modem has two analog ports to connect analog devices such as fax machines,
modems, and telephones. Two different devices can communicate over the two B channels to
different locations simultaneously, enabling you to send a fax and make a voice call at the same
time. The analog ports recognize standard dual-tone multifrequency (DTMF) tones as well as
pulse dialing.
The Model XM128 modem has the following 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) Async-to-Sync Conversion B Channel
Protocol support
• B channel speeds of 56 Kbps (in-band signaling) and 64 Kbps (out-of-band signaling)
• MLP and Multipoint PPP (RFC1717)
• Hi/fn LZS compression (STAC)
• V.42bis data compression using the X.75, V.120, and bundle protocols
• NETGEAR ISDN AT modem commands
• Automatic ISDN and analog call detection
• Two analog telephone jacks (analog adapters)
• Push-button switch for quick dial and teardown
• Easy-to-use configuration software
• Flash EPROM memory for easy firmware upgrades