Reference Guide for the Model XM128 ISDN Digital Modem
10-4 Troubleshooting
Dialed digits detected, please hang-up the hand set….!!
On-hook action is detec ted, (Hook Interrupt)... ..... OK
Listen to the RING and then pick up phone set # 2 ....!!
Off-hook action is dete cted, (Hook Interrupt) . ...... OK
Listen to the dial tone and then dial 123456789 0*# in quence.!!
1234567890*#
Dialed digits detected, please hang-up the hand set ..!!
On-hook action is detec ted, (Hook Interrupt) .. ...... OK
Listen to the prompt signal of the Int ernal Speaker and then press the but ton
switch.......!!
Button switch is pushed (Button Interrupt) .... ...... OK
Modem Reset
If you have modified the setting of the Model XM128 modem and cannot get it back because the
unit is locking up, or you just want to reset it back to the factory default state, the following reset
procedure helps you to reset the modem back to the factory default state.
To reset the Model XM128 modem back to the factory default state, follow these steps:
1. Hold the DATA/VOICE button down while turning the unit on.
Continue holding the switch down for 3 seconds after the power switch is turned on.
2. Release the switch.
The Model XM128 modem resets itself back to the factory setting and runs a continuous
loopback self-test. If the modem is connected to a terminal, printable characters show on the
terminal screen.
3. Turn power to the modem off and then back on again.
Using The Embedded Protocol Analyzer
This section describes how to set up the embedded protocol analyzer (EPA) and capture and
analyze the protocol data.