Configuration Changes; Installing The Telephone - Cisco 1603R User Manual

Connecting an ISDN Telephone to the Cisco 1604
This section describes how to connect an ISDN telephone (or another ISDN device) to the
ISDN PHONE port on the rear panel of the Cisco 1604. The ISDN PHONE port is only for
connecting a second ISDN device. Routing cannot be performed over this port.
Note
Any device connected to the ISDN PHONE port must have its own internal or external
power supply.
Configuration Changes
When you are connecting a second ISDN device to the ISDN line through the router, you
need to use subaddressing on the ISDN line.
For more information about using subaddressing, refer to the "ISDN BRI Line
Configuration Requirements" section in the "Configuring the ISDN Line" appendix.
Before Installing the Telephone
This procedure in this section assumes that you have already connected the router
ISDN Ø U port to the ISDN wall-jack as described in the "Connecting the Cisco 1604 to
the WAN" section in the "Installing the Router" chapter earlier in this guide.

Installing the Telephone

This example procedure describes how to connect an AT&T ISDN telephone
(model ISDN 8510T) and an AT&T external power supply (model MSP-1) that supplies
power to this telephone. Depending on the model of telephone and power supply that you
are installing, the procedure for connecting the telephone and power supply could differ
slightly from the one shown in this section.
The router does not supply power to a device connected to the ISDN PHONE port.
Connecting an ISDN Telephone to the Cisco 1604
Optional Installations 3-7