Technical Information; Troubleshooting; Recall Time; Message Waiting - Doro CONGRESS 100 User Manual

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Technical information

Four selector switches are located in a compartment on the underside of the telephone.
These switches control technical parameters for connection to PBX equipment.
You remove the lid by pressing a small screwdriver (max. Ø 2,5mm) or similar in the hole to
the right of the lid.
IMPORTANT NOTE: These switches should only be adjusted by qualified personnel.

Recall time

Selection of 100/270/600ms timed loop break for recall functionality.
Tone/Pulse (T P)
Selection of either dialling method depending on PBX.
Recall (UK only)
Selection of either earth or timed loop break recall method.

Message waiting

Selection of three types of message waiting signal, UK: NEON/LED+/LED-,
AU/NZ 80-100V/12VLR/48VLR.
REN (RN for New Zealand)
The REN (Ringer Equivalence Number) or (RN) is of significance only if you wish to connect
more than 1 telephone to your telephone line. A standard telephone line has a maximum REN
capacity of 3 (RN of 5). It is possible to connect 3 devices with a REN of 1 (RN of 1) with no
degradation to the product's performance. Exceeding this limit may cause the volume of the ringer
in any phone to decrease or not ring at all.

Message Waiting Indicator

Some company switchboards incorporate a Message Waiting function. The telephone indicates if
a message is waiting by flashing the ring signal indicator when in idle mode. This function varies
depending on the type of switchboard. For further information, contact your system supervisor.

Troubleshooting

Check that the telephone cord is undamaged and properly plugged in. Disconnect any
additional equipment that may be connected. If the problem is resolved the fault is with
the other equipment.
Test the equipment on a known working line, if the product works then the fault is
with the line.
If you are still experiencing difficulties, contact the place of purchase.
Guarantee
This product is guaranteed for a period of 12 months (UK - 24 months) from the date of purchase.
Proof of purchase is required for any service or support required during the guarantee period.
This guarantee shall not apply to a fault caused by an accident or a similar incident or damage,
liquid ingress, negligence, abnormal usage or any other circumstances on the purchaser's part.
Furthermore, this guarantee shall not apply to a fault caused by a thunderstorm or any other
voltage fluctuations.
This guarantee does not in any way affect your statutory rights. (As a matter of precaution, we
recommend disconnecting the telephone during a thunderstorm.)
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