ADTRAN Express XRT manual Phone Number Allocation, Single Phone Number Operation, Automatic Redial

Chapter 2. Installation

Automatic Redial

Automatic redial dials the last number dialed. This can be accom- plished using a touch-tone phone as follows:

Redial last number: Press ** 5

When connecting to a National ISDN 1 switch, call conferencing, mes- sage waiting, and call transferring are assigned a unique feature identi- fier number. This number may not be the same in all areas. S-registers 90 and 91 contain the feature identifier numbers for conference and transfer. If these features do not work, contact your ISDN provider.

Phone Number Allocation

The Express XRT allocates ISDN phone number 1 to POTS port 1. Connect the primary telephone to POTS port 1 as shown in Figure 2-2 on page 7.

ISDN phone number 2 is shared by the RS-232 port and POTS port 2; therefore, only one can be used at a time.

ISDN data calls and external modem applications must be placed to ISDN phone number 2.

Single Phone Number Operation

For AT&T 5ESS point-to-point lines and other lines with a single phone number, incoming voice calls are routed to POTS port 2 to allow for use of either a modem or a telephone. Service on POTS port 1 is not available.

14 Express XRT User Guide 61202.153L3-1