14
Making a Call
Dialling with a Subaddress
In order to use certain services it may be necessary to transmit
a subaddress in addition to the telephone number. This subad-
dress is transmitted to the opposite terminal during dialling for
evaluation by the dialled terminal.
First enter the telephone number. Then press the
SubAddr
soft-
key.
Now enter the subaddress. An "
s
" appears in the display
between the telephone number and subaddress. Now initiate
dialling with the speaker key or lift the handset.
The subaddress can contain up to 20 characters. The Forum
Phone 510 can only transmit digits in the subaddress; letters
cannot be transmitted.
Enquiry
Your ISDN line has two user channels, which can be used simul-
taneously to make calls. You can also hold an additional call dur-
ing an existing call, in which case the original call is held.
You are making a call and want to hold an enquiry call.
Press the
Hold
softkey, or the
®
key for an enquiry.
Your call is held and you can carry out the enquiry call. Dial the
desired telephone number
or
select it in the telephone book.
To terminate the enquiry call press the
Disconn
softkey.
