User guide

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MultiVOIP 400/800 User Guide
tone or wink), 2-wire or 4-wire connection, and if the wink option is the signaling option, the wink timer
delay in milliseconds. The default is 250 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 is 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.
Once you have completed channel setup, you will need to add the phone numbers to the phone
directory database. Before you set up the phone directory database, you need to consider how the
database is going to be used; are you going to have an H.323 Gatekeeper setup your call sessions
or are you going to control your call sessions using the proprietary phone book. The H.323
Gatekeeper acts as the central point for all calls within its zone and provides call control services to
registered endpoints. If you choose the proprietary phone book, you establish a master-slave
relationship where the master MultiVOIP maintains the phone directory and downloads the directory
to each slave unit.
The decision on building the phone directory database is contained in the Phone Directory Database
dialog box. Before you choose how the data base is going to be used, here are a couple of things to
keep in mind; (1) If a Gatekeeper is employed in the network, you need to choose the Gatekeeper