User's Manual

Menus and Parameters
2-89
BreezeACCESS Version 4.3 System Manual
 Fax Relay – Defines the use of T.38 protocol for relaying fax
messages. T.38 is a protocol dedicated to fax. When the Fax Relay
Option is enabled, fax signals are demodulated at the voice/fax
gateway and sent over the IP network as IP fax packets (IFP) using
UDP. A redundancy mechanism can be employed to restore IFP fax
data packets. At the other end of the IP network, the remote gateway
decodes IP fax packets and regenerates fax signals.
Modulation methods that can be used with the T.38 format are V.21
Channel 2, V.27ter 2400, V.27ter 4800, V.29 7200, V.29 9600, V.17
7200, V.17 9600, V.17 12000, and V.17 14400.
The Fax Relay menu includes the following parameters:
 Fax Relay Option – Enables or disables the use of the T.38
protocol for relaying fax messages.
The default selection is Disable.
 Fax Relay Redundancy – Defines the redundancy (number of
additional times each fax frame is transmitted) to be used when
transmitting T.38 fax messages.
Valid values: 0 –5.
Default value: 3.
 Battery Polarity – Defines the battery polarity for supporting an
external device, e.g. for coins or tokens charging purpose. This
feature is fully supported by units with voice card from revision D
and up.
The available options are:
 Forward Battery – Regular polarity
 Reverse Battery – Reverse polarity
 Forward -> Reverse Battery – Change the polarity from forward
to reverse
 Reverse -> Forward Battery – Change the polarity from reverse
to forward
The default is Forward Battery.
 Caller ID: Defines whether the unit will support generation of Caller
ID (CID) signaling and if CID generation is supported, which
standard will be used. The unit supports two CID signaling
standards:
 Voice band Frequency Shift Keying (FSK) signaling in
accordance with ETSI ETS 300 659 – 1
NOTE:
To enable the Fax Relay Option, the Fast Start parameter must also be
enabled.