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10. The approval of this terminal for connection to the British Telecom public switched
telephone network is INVALIDATED if the apparatus is subject to any modification in
any material way not authorised by BABT or it is used with, or connected to:
a) Internal software that has not been formally accepted by BABT.
b) External control software or external control apparatus which causes the
operation of the terminal or associated call set-up equipment to contravene
the requirements of the approval.
All apparatus connected to this terminal and thereby connected directly to the British
Telecom public switched telephone network must be approved apparatus as defined
in Section 22 of the British Telecommunications Act 1984.
11. This apparatus has been approved for the use of the following facilities:
Storage of Telephone Numbers for Retrieval by Predetermined Code
Automatic Call Initiation
Operation in the Absence of Proceed Indication (Although not Detected)
Automatic Dialling Facilities
Auto-Calling Facility
Loudspeaking Facility
Series Connection Facility
Automatic Storage of Last Number Dialled
Tone Detection - Busy Tone
Repeat Attempt Facilities: Multiple (Automatic)
Auto Clear from Call Originating End
Integral Modem
Any other usage will invalidate the approval of the apparatus if as a result it then
ceased to conform to the standard against which approval was granted.
13. Connection to a PBX - it cannot be guaranteed that the apparatus will operate
correctly under all possible conditions connection to compatible PBX's. Any cases of
difficulty should be referred in the first instance to the supplier of the telephone
apparatus.
14. This apparatus provides an off hook detector and switching of the line between the
telephone and modem. The voltage drop introduced by this apparatus into the loop
connection between the main telephone and the network at a current of 40ma d.c. is
0.3 volts.
15. Only apparatus conforming with BS6301 or EN41003 may be connected to the series
socket. Any interconnection between the above socket and other connections,
directly or by the way of other apparatus, may produce hazardous conditions on the
BT network. Advice should be obtained from a competent engineer before any such
connection is made.
16. With reference to EN41003 cl 4.1.3 the apparatus is supplied with a connection to the
Public switched telephone network, which is refered to as a TNV circuit. There is also
an optional printer port that may be fitted, which is refered to as a SELV circuit.
Please ensure that the TNV circuit is only connected to another TNV circuit and that
the SELV circuit is only connected to other SELV circuits.
17. The apparatus does not recognise a secondary proceed indication.
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