AT&T System 25 - Manual (Page 171)

SYSTEM TESTS
MAKE POOLED MODEM TEST CALL
Skip this test if the system does not include a TN758 Pooled Modem CP.
This test involves placing a data call from a data terminal connected through
an ADU from a data terminal or personal computer connected via a modem
(the modem may be part of a terminal connected to System 25 or off
premises).
Place the call following the dialing procedure required by the
modem. When you hear answer
now be able to communicate with
tone, transfer the call to data. You should
the called endpoint.
TEST TRANSFER TO DATA
Perform this test at each voice terminal with a DATA button,
1.
2.
3.
4.
5.
6.
Determine which data terminal or personal computer (PC) is
associated with the DATA button being tested. Be sure the terminal
or PC is turned on.
Go off-hook at the voice terminal.
Dial the DDC of another data terminal
terminal or PC is turned on and idle).
or host computer (be sure the
When you hear answer tone, press the DATA button and hang up.
A call is now established between the associated data terminal and
the called terminal.
Verify connection by sending a message or
logging in at the called end-point.
Hit <BREAK> twice within 1 second at one of the data terminals to
disconnect the call.
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