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
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 circuit.
17.The apparatus does not recognise a secondary proceed indication.
18.Although this equipment can use either loop disconnect or DTMF signalling, only the performance of the DTMF signalling is subject to regulatory requirements for correct operation. It is therefore strongly recommended that the equipment is set to use DTMF signalling for access to public or private emergency services. DTMF signalling also provides faster call set up.