Multitech MVP200 User Giude page 32

Configure each channel for the type of interface you are connecting to. To change the chan-
nel number, select the channel you want to configure from the Select Channel list.
6. The Interface group defaults to FXS (Loop Start). Select the interface option to correspond
to the interface type being connected to the Voice/Fax connector on the back panel of the
MultiVOIP.
If you are connecting a station device such as an analog telephone, a fax machine, or a Key
Telephone System (KTS) to the Voice/Fax connector on the back of the unit, FXS (Loop
Start) will likely be the correct Interface option most of the time.
If the station device uses ground start, then choose the FXS (Ground Start) option. Refer to
the device's user documentation.
If you are using an extension from your PBX, then choose the FXO option. Check with your
in-house telephone personnel to verify connection type.
If you are connecting to an E&M trunk on your PBX, then choose E&M option.
If the E&M interface is selected, the E&M Options group is enabled. Check with your in-house
phone personnel to determine if the signaling is Dial Tone or Wink and if the connection is 2-
wire or 4-wire. If Wink signaling is used, then the Wink Timer is enabled with a default of 250
milliseconds. The range of the Wink Timer is from 100 to 350 milliseconds. Consult with your
local in-house phone personnel for this timer setting. If the Pass Through check box is
selected, a continuously open E&M voice path is established between two channels to pass
voice packets. Available if the Dial Tone option is selected and auto-dialing is set up for the
two channels that will be doing pass-through. This is useful for Public Address systems.
If you choose an FXO or FXS interface, the Dialing Options Regeneration group is enabled.
Check with your in-house telephone personnel to verify whether your local PBX dial signaling
is Pulse or DTMF (tone). Set the Regeneration option accordingly. In the Max Dial Digits
box, enter the maximum number of digits allowed when dialing a phone number. The default
setting is 5. In the Inter Digit Time box, enter the maximum amount of time in milliseconds
that the unit will wait before mapping the dialed digits to an entry in the Phone Directory
Database. If too much time elapses between digits and the wrong numbers are mapped, you
hear a rapid busy signal. If this happens, hang up and dial again. This option is available for
all interface types. In the Flash Timer box, enter the time, in milliseconds, for the duration of
flash hook signals output on the FXO or FXS interface.
To dedicate a local voice/fax channel to a remote voice/fax channel, (so you will not have to
dial the remote channel) select the Auto Call Enable check box. Enter the phone number of
the remote VOIP in the Phone Number box.
For FXO-to-FXO communications, you can enable a specific type of FXO Disconnect: current
loss, tone detection, or silence detection. Check with your in-house phone personnel to
verify the preferred type of disconnect to use. For tone detection, you can select from the
lists either one or two tones that will cause the line to disconnect. The person hanging up a
call must then hit the key or keys that will produce those tones. For silence detection, select
One Way or Two Way, then set the timer for the number of seconds of silence before discon-
nect. The default value of 15 seconds may be shorter than desired for your application.
The FXS Options control how the selected channel interacts with answering machines. If the
Current Loss check box is selected, the local VOIP hangs up when the electrical current is
lost. The remote VOIPs must also be configured for current loss. The Ring Count box
contains the number of rings before the caller hears a fast Busy signal. If this happens, hang
up and try again. The default setting is 8 rings.
Chapter 3 - Software Loading and Configuration
32