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Testing
1
Start your communications software package. Use a terminal
emulation program, such as HyperTerminal.
2
Change the COM port and IRQ settings in your communications
software to match the I-modem's setup.
3
Make a test data call.
a
b
If you don't see one of these messages, refer to Chapter 15,
Troubleshooting, in the I-modem Command Reference manual.
4
I-modems with Analog Device Jack: Make a test voice call.
When the network connects the call, the B1 or B2 LED should flash.
If you have set up your analog device B-channel to use All Digits At
Once (en-bloc) dialing, you must press the star (*) key after you dial
the number in order to send it.
If you have trouble making analog calls, refer to Chapter 15,
Troubleshooting, in the I-modem Command Reference manual.
Note: Any device attached to the Analog Device port cannot use the line
unless the I-modem is powered on.
Special Considerations for AT&T 5ESS Custom
If your central-office switch is an AT&T 5ESS that runs the Custom
6-8
Put your communications software in Terminal Mode.
Call the U.S. Robotics BBS. Type the following:
ATDT18477348612 <Enter>
Or, in the 847 area code:
ATDT7348612 <Enter>
Note: When you make ISDN calls, you won't hear dialing or
training tones when the call is being made.
You should see one of the following messages:
CONNECT 56000/ARQ/DIGITAL/V120
CONNECT 64000/ARQ/DIGITAL/V120
Courier I-modem Getting Started Guide
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