NETGEAR XM128 ISDN - Manual (Page 83)

Analog Call Handling 8-1
Chapter 8
Analog Call Handling
This chapter outlines the steps required to place and answer analog calls through the ISDN line for
your Model XM128 ISDN Digital Modem.
The analog adapters enable you to connect analog devices (for example, telephone, fax, or modem)
to an ISDN basic rate line. Any conventional analog telephony equipment that supports desktop
management task force (DTMF) tone/pulse dialing can be plugged into either of the two RJ-11
connectors (labeled PHONE 1 and PHONE 2) on the back of the Model XM128 modem.
The analog adapters use RJ-11 phone jacks. The pin assignment of the connectors and plugs are
shown in Appendix E, “Connector Pin Assignments.”
Note: German NETGEAR customers: The inner two pins of the RJ-11 are used for the
Tip and Ring (or a and b signals in Germany, the two signals that connect to a telephone
set). This is the standard pin assignment, but some BZT-approved telephones use the
outer two pins for a and b. If this is the case, use the attached TAE adapter, which has a
unique interface definition, or use an RJ-11 cable that connects the inner pins on one end
and the outer pins on the other end.