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MultiVOIP User Guide T1 PhoneBook Configuration
291
Add/Edit Outbound Phone Book: Field Definitions
(cont’d)
Field Name Values Description
H.323 fields
Use Gatekeepr Y/N
Indicates whether or not
gatekeeper is used.
H.323 ID
The H.323 ID assigned to the
destination MultiVOIP. Only
valid if “Use Gatekeeper” is
enabled for this entry.
Gateway
Prefix
This number becomes
registered with the
GateKeeper. Call requests
sent to the gatekeeper and
preceded by this prefix will
be routed to the VOIP
gateway.
Q.931 Port
Number Q.931
Port Number
1720 Q.931 is the call signalling
protocol for setup and
termination of calls (aka ITU-
T Recommendation I.451).
H.323 employs only one
“well-known” port (1720) for
Q.931 signalling. If Q.931
message-oriented signalling
protocol is used, the port
number 1720 must be chosen.