Multi-Tech Systems Multivoip Model Mvp400/800 Standalone Voice/ip Gateway Quick Start Guide

51 Configuring  the MultiVOIP
9. You can set up the input and output voice gain so that the
volume can be increased or decreased. Input gain
modifies the level of the audio coming in to the voice
channel before it is sent over the Internet to the remote
MultiVOIP 400/800.  Output gain modifies the level of the
audio being output to the device attached to the voice
channel. Make your selections from the Input and Output
lists in the Voice Gain group. The valid range is +31dB to
–31dB with a recommended...

MultiVOIP Quick Start Guide
5210. To change the voice coder, the channel from the Select
Channel list, then click Manual in the Coder group. To
select the appropriate coder, select your new voice coder
entry from the Selected Coder list.
If you changed the voice coder, ensure that the same
voice coder is used on the voice/fax channel you are
calling; otherwise, you will always get a busy signal.
Note: If you allow the Coder to be selected automatically,
enter the Max Bandwidth. Check with your network...

53 Configuring  the MultiVOIP
The Echo Cancellation check box defines whether echo
cancellation is enabled for this voice channel. If echo
cancellation is enabled, the MultiVOIP 400/800 will remove
echo-delay which improves the quality of sound.
The Forward Error Correction (FEC) check box defines
whether forward error correction is enabled for this voice
channel. The FEC feature allows some of the voice
packets that were corrupted (or lost) to be recovered. FEC
adds an additional 50% overhead to the...

MultiVOIP Quick Start Guide
54the Auto Call group. Then enter the phone number of the
remote MultiVOIP 400/800 in the Phone Number box.
14. The Automatic Disconnection group provides three
options to be used singly or in combination.
The Jitter Value defines the average inter-arrival packet
deviation (in milliseconds) before the call is automatically
disconnected. Jitter is the inter-arrival packet deviation
(phase shift of digital pulses) over the transmission
medium that causes voice breakup which can...

55 Configuring  the MultiVOIP
between allowable minimum and maximum values. An
Optimization Factor adjustment controls how quickly the
length of the Jitter Buffer is increased when jitter increases
on the network. The length of the jitter buffer directly
effects the voice delay between MultiVOIP 400/800
gateways.
The Minimum Jitter Value default setting is 150
milliseconds, the Maximum Jitter Value default setting is
300 milliseconds, and the Optimization Factor default
setting is 7.
Note: After...

MultiVOIP Quick Start Guide
5617. To change the Tone Pairs on the Regional tab, select your
specific country or region from the Country/Region list.
Note: If your country or region is not listed, click Custom
to define it.
The Tone Pairs group enables you to select/modify the
parameters according to choice.  Click OK when finished
and proceed to step 6 to begin building your phone
directory database.
18. From the Main menu, click Phone Book to display the
Phone Directory Database dialog box. Make certain...

57 Configuring  the MultiVOIP
Note: After you have enabled the Slave option, the Slave
Status button is replaced by the Update button. Once
your Phone Directory database has been established, you
can click Update to refresh the entries in the Phone
Directory Database window.
19. Enter the IP address (204.022.122.118) of the Master
MultiVOIP 400/800 in the Master IP Address box and
select the Send Status Report to Master check box.
This established the New York office MultiVOIP 400/800
as the Master....

MultiVOIP Quick Start Guide
58
22. Select  the Save Current Setup as User Default
Configuration and click OK. The Writing Setup dialog box
displays as the setup configuration is written to the
MultiVOIP 400/800.
After the setup is written to the MultiVOIP 400/800, it
reboots.
23. Check that the BTG LED on the MultiVOIP 400/800 is off
after the download is complete. This may take several
minutes as the MultiVOIP 400/800 reboots.
24. You are returned to the Main menu.
Your MultiVOIP 400/800 is operational...

59 Deploying  the VOIP Network
Deploying the VOIP Network
For a proprietary phone directory database, the VOIP
administrator can deploy the pre-configured slave MultiVOIP
400/800s to their remote sites. The remote site administrators
need only connect power to the pre-configured MultiVOIP 400/
800, connect the MultiVOIP 400/800 to their Ethernet LAN and
predefined telephone equipment, and then wait for the phone
directory database to be downloaded.
With the Gatekeeper option enabled on the Phone...

MultiVOIP Quick Start Guide
60
FXSE&M
FXO
PSTNEthernet Connection
Power Connection
10BASET
ETHERNET
POWER
Voice/Fax Channel
      Connections
E&MFXO
FXS
Figure 5.  Remote Site Cable Connection
3. Connect a network cable to the ETHERNET 10BASET
(RJ-45) connector on the back of your MultiVOIP 400/800.
4. If you are connecting a station device (analog telephone,
fax machine, or Key Telephone System (KTS) to your
MultiVOIP 400/800, connect the smaller end of a special
adapter cable (supplied) to the...