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• Facsimile transmission and reception
• Call progressing mode
• Full Numeric Handsfree
• Answering Recording Device
• Fax Answering Device
• PC Printing (GDI Protocole)
• Internet Access
Any other usage will invalidate the approval of the apparatus if as a result, it then ceases to conform to the
standards for which approval was granted.
3. The connection to the telecommunication system must be unplugged before the earth is disconnected. The
connection to the telecommunication system must be hardwired.
4. This apparatus may be used on the telecommunication employing loop disconnect or MF dialling.
5. This apparatus is suitable for connection to direct exchange lines on the PSTN directly or via a compatible
PABX (selection done by parameter setting).
6. Ringing delay: the maximum number of ring before automatic answering is 5.
7. Ringer Equivalent Number (REN) = 1
The REN is a customer guide indicating appoximately the maximum number of items of apparatus that
should be connected simultaneously to the line.
The sum of the REN’s of the individual items should be not exceed 4. The REN value of a BT telephone is
assumed to be 1 unless otherwise marked.
8. Voltage Drop
While operation may be possible initially, change to or modernization of the network taking place in the
normal course of events may result in the apparatus being connected being incompatible. Failure of the
apparatus to work under these circumstances is not the responsibility of the network operator.
In the unlikely event of such problems occuring, the user should contact the supplier or maintainer of the
apparatus.
Note: the definition of RBS (Relevant branch system) for PSTN lines is given in BS6789 section 6.1 (1986)
clause 2.4
9. Naive caller
« Callers are accustomed to being answered normally within 10s and the majority abandon calls that are not
answeed within 45s »
It is « normal » to set the number of rings at between 1 to 5 rings before the answering machine responds
The machine is already preset for a plug and play mode.
« If the intention is to delay answer so that normal voice callers would abandon the call before the non-voice
TE answered, then delay should be at least 45s ».
It is helpful to include with the statement of the answering telephone number the exchange name or
international code, and announcements must be suitable for the purpose for which they are intended. The
announcement should also start within 3s of answering.
Paytone may be received after answering calls from some types of payphones and may persist for up to 13s.
Answering announcements should be constructed so as to ensure that an answering announcement
containing the identity of the called line and, where appropriate, the invitation to record, will be heard by
the callers after paytone has ceased.
IMPORTANT ! Compatible switchboards
Liasse 23228000-2 A (T).book Page 40 Jeudi, 5. août 1999 9:26 09
