User guide

37
Chapter 4 - MultiVOIP Software
The FXS Options group controls how the selected channel interacts with answering machines. If the
Current Loss check box is selected, the local MultiVOIP interrupts power from the Phone port when a
call is hung up on the remote end. The remote MultiVOIPs must also be configured for current loss.
The Ring Count box contains the maximum number of rings allowed before the caller hears a fast busy
signal. If this happens, hang up and try again. The default setting is 8 rings.
Voice/Fax tab
The Voice/Fax tab controls the voice coder, Input and Output gains, Fax settings, DTMF gain, and
some miscellaneous options.
The MultiVOIP supports many state-of-the-art ITU (International Telecommunications Union) voice
coders. The Voice Coder list enables you to select from a range of coders with specific bandwidths.
The higher the bps rate, the more bandwidth is used. The channel that you are calling has to have the
same voice coder selected. Otherwise, you will always get a Fast Busy signal.
The Input Gain and Output Gain lists enable you to select the amount of gain you want. Gain is the
increased signalling power that occurs as the signal is boosted by the MVP110. The Input Gain list
defines the voice input gain for the Voice/Fax channel. Before the MVP110 digitizes voice, the volume
can be increased or decreased. Input gain modifies the level of audio coming into the voice channel
before it is sent over the Internet to a remote MultiVOIP. The valid range for this option is +31dB to -31
dB. The recommended and default value is 0. The Output Gain list defines the voice output gain for
the Voice/Fax channel. Before the MVP110 converts digital voice back to analog, the volume can be
increased or decreased. The output gain modifies the level of the audio being output to the device
attached to the Voice/Fax channel. The valid range for this option is +31dB to -31 dB. The
recommended and default value is 0.
The Fax group enables a fax machine to transmit and receive faxes through the MultiVOIP. If a fax
machine is connected to the voice/fax channel, the Max Baud Rate should be set to match the baud
rate of the fax machine. Refer to user documentation for your fax. The Fax Volume setting controls
the output level of the fax tones, and this setting should be changed only under the direction of Multi-
Techs Technical Support personnel. See Chapter 6 - Warranty, Service and Tech Support.
You can enable the voice/fax advanced features by selecting the Silence Compression, Echo
Cancellation, or Forward Error Compression check boxes in the Miscellaneous group.