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Clear'. So, DTE-B can clear the call by sending a break sequence.
When DTE-B uses Hayes command ATH0 (hang up) and the SOPHO-LAM is in the Hayes
mode, then the SOPHO-LAM goes on hook and the digital connection through the switch
is cleared. So, the ATH0 command is received by and executed by the SOPHO-LAM.
C.3.2. Outgoing Call
When DTE-A dials the convertor group DNR, one of the convertors is selected and the
corresponding SOPHO-LAM activates CT107. This circuit is connected to CT108 of
MODEM-A. In return the MODEM-A activates CT107 which is connected to CT108 of the
SOPHO-LAM. At this moment the SOPHO-LAM accepts the call from DTE-A. Because the
analogue connection is already present, DTE-A is directly connected to DTE-B.
If the analogue connection is not present, the MODEM-A does not return CT109. In this
situation the SOPHO-LAM does not accept the call. The call clearing possibilities are the same
as described in section
C.4.
SWITCHED LINE CONFIGURATION
Figure
Figure C-3 Switched Line Configuration with SOPHO-LAM convertor.
switched line configuration with SOPHO-LAM convertor.
C.3.1. Incoming Call
shows the
101
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