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DESCRIPTION
3 (6)
Uppgjord (även faktaansvarig om annan) -
Prepared (also subject responsible if other)
Nr
-
No.
KL/ECS/S/ML Magnus Lindahl
MRS3000 Telephone interface version
Dokansv/Godk -
Doc respons/Approved
Kontr
-
Checked
Datum
-
Date
Rev
File
KI/ECS/S/MLC
1997-01-14 E
LZB 119 1661
TELE.DOC
AUTOMATIC TELEPHONE CONNECTION
This functions exists only if you have a CU210 with identity number 0. To enable the automatic
telephone connection function press |Transfer| twice. The display flashes:
TRANSFER TO TEL
Press |#|, and the CU210 enters automatic telephone connection mode. Press |*| three times within
three seconds to exit this mode.
In automatic telephone connection mode no normal calls to the CU210 are accepted and no keys have
any meaning except |Loudspeaker|, |Keyboard PTT|, |Horn| and |*|.
To have transfer to telephone numbers work you need to set the CU210 in automatic telephone
connection mode.
Whenever the CU210 is connected in a call in the automatic telephone connection mode, the operator
can hear everything in the built in loudspeaker or in the handset loudspeaker. It
is also possible for the operator to break in by pressing PTT.
What the operator says will then be transmitted to both the radio and the telephone line.
The rest of this manual concerns the automatic telephone connection mode of the CU210.
Incoming
calls
Telephone call from mobile to pre-programmed number
CU210 lifts the hook, waits for the dial tone and dials the pre-programmed telephone number.
Two different situations can arise:
•
Dial tone detect failure. This can happen either when first lifting the hook or when a dial tone is
needed before in the middle of a telephone number, before continuing dialling. The call will be
disconnected.
•
Telephone number is successfully dialled. The LF between the telephone line and the radio will be
connected.
The other CUs in the system indicate LINE BUSY, and cannot break in.
The call can be disconnected in a number of different ways:
•
Detection of ten consecutive ring- or busy-tones.
•
The operator by the telephone dials a DTMF #.
•
The mobile transmits a WHC-call.
•
The mobile transmits a DISCON call (personality programmable if allowed or not).
