Incoming Calls; Call Disconnection - Nortel Meridian SL-100 Reference Manual

9-14 Hayes keyboard dialing
Procedure 9-5
Manually answering a Hayes data call
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Incoming calls

Incoming calls activate the most recently used keyboard dialing type. The
prompts are transmitted at the previously detected data rate.
If you have not set the autobaud, the MCA acts as though the autobaud is
19.2 Kbyte/s. If the terminal connected to the MCA is at any speed other
than 19.2 Kbyte/s, then the display may be unreadable because of the
incompatibility of the baud rates. Autobaud the MCA immediately
following any MCA installation or maintenance.
If the data rate of the DTE changes and the autobaud has not been set, an
incoming call is transmitted at an incompatible data rate.

Call disconnection

If a number has been dialed but a connection has not been established, the
MCA is still in the command state. The call may be released by sending any
character from the DTE to the MCA (an S7 time out) or by entering a valid
break sequence.
If a data connection has been established, a call may be released by returning
to the command state using the release sequence previously described
followed by the H command. Alternatively, a call may be released by
dropping DTR provided that the MCA is datafilled with the &D2 or &D3
commands.
555-4001-114 Standard 10.02 November 1999
When the MCA detects an incoming call, the following message displays on the
screen:
RING
Response:
The MCA counts rings.
Type ATA (CR).
Response:
The MCA answers. The following message appears on the screen:
CONNECT
The data connection is established.
Note: The MCA does not provide audible ringing. The RI lead of the RS-232-C
connection is high for 2 seconds and low for 4 seconds. This cycle is counted
like physical ringing. (CR) indicates a carriage return.
You have completed this procedure.