Multi-Tech Systems MVP210-SS - Manual (Page 29)

MultiVOIP User Guide QS: Gathering Phone/IP Details
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Identify Remote VOIP Site to Call
When you’re done installing the MultiVOIP, you’ll want to confirm that
it is configured and operating properly. To do so, it’s good to have
another voip that you can call for testing purposes. You’ll want to
confirm end-to-end connectivity. You’ll need IP and telephone
information about that remote site.
If this is the very first voip in the system, you’ll want to coordinate the
installation of this MultiVOIP with an installation of another unit at a
remote site.
Identify MVP-SS Unit’s Role in SIP VOIP System
The MVP210-SS/410-SS/810-SS unit always uses the SIP protocol.
However, the MVP-SS units are equipped to play an additional role in
the voip system -- the role of a SIP server. And as a SIP server, the
MVP-SS unit can operate in either “stand-alone” mode or “SIP
survivability” mode.
Stand-Alone Mode . The MVP-SS unit can function as a stand-alone SIP
server that controls the flow of phone traffic to lines connected to
gateways that are registered with the MVP-SS unit. This stand-alone
capability allows the MVP-SS to operate with ‘smart’ SIP phones. Such
smart SIP phones can choose the SIP server under which they operate
and, consequently, can be controlled by either the SIP-based PBX or by
the MVP-SS.
SIP Survivability Mode . The MVP-SS unit can function as a back-up SIP
server that performs SIP server functions when/if the network’s main
SIP server fails or loses contact with the subnetwork in which the
MVP-SS unit is placed.