User guide

E1 Phonebook Configuration MultiVOIP User Guide
342
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 signaling
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 signaling.
If Q.931 message-oriented
signaling protocol is used, the
port number 1720 must be
chosen.