User Guide

48 Voice Gateway / Pocket Voice Gateway
In order to dial out to PSTN world, the VoIP system has to connect to trunk
gateway to PSTN controlled by VoIP Server. For example, you have to con-
nect to Call Agent or Gatekeeper. Then you can dial to PSTN using VoIP
phone.
a. You have to setup the VoIP phone is controlled by Sever first in this
example.
b. For H.323, you have to enable Gatekeeper function in the H.323 com-
mand directory. And setup the IP address of Gatekeeper. Some vendor’s
trunk gateway supports E.164 numbering function but does not support
Gatekeeper functionality, please enable trunk gateway and disable
Gatekeeper in H.323 command directory.
c. For H.323, the voice gateway has to setup the telephone number itself.
Please use the set_phno command in H.323 command directory to set
them.
d. For MGCP, you have to setup the IP address of Call Agent. Then you
have to setup the DNS name of the voice gateway. The similar setting
have to support in setting of Call Agent. Then the voice gateway can
make phone call well.
e. If the voice gateway cannot connect to server well, you still can use the
function of inner conference call. So, you can hear the dial tone also
while you pick up the phone. By the way, if you want to dial out, you
will hear busy tone since it cannot connect to VoIP server.
f. For H.323, you can also dial to VoIP phone using IP address without
connecting to VoIP server.
7. System Operation
7.3.3 VoIP Voice Gateway to VoIP Networks
controlled by VoIP Server
DC POWER Reset
Console
LAN WANP1 P2 P3 P4
PC
PHONE 1
Tel#: 1011
POWER
192.168.100.102
Tel#: 1021
PHONE 2
Tel#: 1012
Trunk
Gateway
Call Agent
Gatekeeper
PSTN
Tel#: [phone]
VoIP
Networks