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Chapter 3: Operating the system
Dialling prefixes
Apart from the numbers above, the terminal uses the following dialling
prefixes:
•
1* before the phone number will force the connection to use Standard
Voice.
•
2* before the phone number will force the connection to use 3.1 kHz Audio.
•
#31# before the phone number will hide the caller's phone number to the
recipient.
•
*31# before the phone number will show the caller's phone number to the
recipient where it would otherwise be hidden, e.g. because the number is
an ex-directory number.
•
For analogue 2-wire telephones, use the R key during a call to get access
to a supplementary services function. The supplementary services
functions supported by the terminal are described in the following
sections.
54
Using a phone or fax machine
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Troubleshooting
