KVH Industries FB250, User Manual

Page: 57 / 268

Chapter 3: Operating the system
Using a phone or fax machine 45
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Selecting the call type
Definition
The phone connection can use one of the following call types:
• Standard Voice , which is a low-tariff voice connection compressed to
4.0 kbps
• 3.1 kHz Audio , which is a high quality connection used for Premium Voice
or G.3 fax
• UDI or RDI (only on ISDN interface), which is used for G4 fax or data
In the web interface you can set up which type of connection to use by default
when you make or receive a call from the Phone/Fax or ISDN interface or from
an IP handset connected to the LAN interface. Standard Voice is selected by
default.
When connecting a fax to the Phone/Fax interface you must use 3.1 kHz Audio.
Example: If you always have a fax connected to the same Phone/Fax
interface you can set this interface to 3.1 kHz Audio only. This will
mean that if an incoming Standard Voice call is received, this
Phone/Fax interface will not ring.
When connecting a G4 fax or a modem to the ISDN interface in the
TracPhone FB500 system you must use UDI.
Note UDI and RDI are not available with the TracPhone FB250 system, so
you cannot connect a G4 fax machine nor a modem to the ISDN
interface on the TracPhone FB250 system.