British Telecom Viscount, Руководство пользователя

Страница: 6 / 12

4
Changing the signalling mode during a call
Sometimes you may wish to initiate a call using the pulse method
of dialling and once connected to your destination to use the Tone
dialling mode. This is particularly useful when accessing computers
or voice messaging systems.
* Set up your call in the usual way.
*
Press the
'*'
button when you wish to send data - all
subsequent digits will be sent in tones.
*
When the handset is replaced the telephone will revert to normal
use for telephone calls.
Note for Switchboard users
Last Number Redial
It is important to note that the procedure for using the last number
redial function may differ if your line is connected to an automatic
switchboard.
If your automatic exchange requires access digits for an outside
line and then returns dial tone before the outside number can be
dialled then:
* Lift the handset and waif for dial tone from your PBX.
*
Press and release the access digit or digits.
*
Wait until the dialling tone is heard again, it may sound different
to the first dial tone.
* Press the MR button once.
*
The telephone will then automatically call the number.
Additional Information
Your exchange line provides only a small current to make phones
connected to it ring. Although you may have any number of sockets, it
is important to limit the number of phones connected to the line by
those sockets to ensure that each phone will receive enough current
to ring.
Every phone has a 'Ringer Equivalence Number' or (REN).
In most cases, a standard line should provide enough current for
two or more phones whose RENs add up to no more than
4.
The Viscount has a REN of 1.0. Any other phone provided by BT
may be assumed to have a REN of 1 unless stated otherwise on the
base. Even where the number of phones has been limited, there is no
guarantee that different types of phones on the same line will ring.