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9-253810-A2-GB30-20 November 1996
Table 9-3
(6 of 6)
Line Dialer Configuration Options
MI/MIC Dialing: Disable
End Disable Enable
MI/MIC Dialing. Also known as D-Lead signaling, is required by some PBX systems, older data phones, and security
callback systems. It forces the modem into the originate handshake after first dialing a call.
Disable – Modem ignores activity on the MI/MIC contacts.
Enable – When Pins 3 and 6 of the TELCO jack (Models 3810 and 3820) are connected then disconnected, the modem
goes off-hook and looks for the answer sequence from the remote modem. If the sequence is detected, the local modem
will handshake and connect with the remote modem. A 26-pin D-Lead control connector is located on the rear of the
3000 Series Carrier. This connector is used for MI/MIC Dialing for Model 3811 modems.
The factory default is Disable.
AT command is S-register S83 =
n
, where
n
is 0 for Disable and 1 for Enable.