Multitech MultiVOIP 200 MVP200 User Manual page 9

Chapter 1 - Introduction and Description
Gateway Address of 206.25.124.110. Once the LAN parameters are established, you can set up the
voice channel parameters.
The channel setup parameters define the voice side of the MultiVOIP, that is, the voice channel
interface; FXS (Ground and Loop Start) are for connecting to a standard analog telephone set, FXO
(Foreign Exchange Office) interface connects to the station side of a PBX, and E&M (Ear and Mouth)
connects to the trunk side of the PBX. Along with each interface there are additional parameters that
need to be considered, such as for FXO, the dialing options for DTMF (Touchtone) or Pulse, the
method of disconnecting (Current Loss or Tone Detection), and for E&M, signaling, mode, and the
wink timer settings in milliseconds.
Additional channel setup parameters cover the voice coder, DTMF gain, voice gain, and faxing in the
Voice/Fax tab of the Channel Setup dialog box. The most important parameter in this group is to
ensure that the voice coder is the same for all MultiVOIPs in the network. The Billing/Misc tab
handles the billing options, automatic disconnect options, and the dynamic jitter buffer options. The
jitter options in this tab handle voice break up which can be particularly disruptive to voice
communications. For the most part, these parameters can remain in their default values. The
Regional tab defines the country or region the MultiVOIP is being used in.
In our typical application, you would configure the corporate office channel parameters for an FXO
interface. With this interface, the defaults for the Dialing Options and the type of Disconnect could
remain as the defaults. For the remote branch office, the interface would be FXS with Loop Start
being used in most cases.
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