Connecting To The Voice Port (521 And 531) - 3Com 3C410012A - OfficeConnect Remote 531 Access Router Getting Started Manual

Cabling Up the OfficeConnect Remote 2-17

Connecting to the Voice Port (521 and 531)

A standard telephone handset or other analog telephony equipment
(such as a a fax or answering machine) can be connected to the
Voice port (Figure 2-19). This port can also be used to connect the
OfficeConnect fax server to ISDN.
Figure 2-19 Connecting Voice Equipment
It is recommended that voice equipment is only connected to ISDN
services offering the standard 2 B-channel Basic Rate service. Some
service providers offer Basic Rate ISDN connections with a single
B-channel. If a handset is attached to a unit connected to this type of
ISDN service, data cannot be passed whilst the voice port is in use.
The voice port is terminated with an RJ-11 socket. If your telephone
equipment uses a different connector, a suitable convertor must be
used to connect to the voice port. A British Telecom to RJ11
convertor is supplied with UK models.