VOICE OVER IP INTERFACE
Installation and Operation Manual
19
Phone Book Design
Phone book entries are critical when designing a VoIP setup for Emergency Phones. The phone book in
the VOIP units serve in providing routing information for calls over a Voice-over IP setup. The Outbound
phone book for a particular VOIP unit describes the dialing sequences required for a call to originate
locally and reach any of its possible destinations at remote VoIP sites. The Inbound phone book for a
particular VoIP unit describes the dialing sequences required for a call to originate remotely from any
other VOIP sites in the system, and to terminate on that particular VOIP.
Concisely, the Outbound phone book lists the phone stations it can call and the Inbound phone book
describes the dialing sequences that can be used to call that VOIP unit and how those calls will be
directed. In general, the Inbound phone book entries of the local VOIP unit will match the Outbound
phone book entries of the remote VOIP unit. Similarly, the Outbound phone book entries of the local
VOIP unit will match the Inbound phone book entries of the remote VOIP unit. However, in most cases,
the VOIP units will only have some matching entries.
Once you’ve programmed the VOIP units with a known IP address, you can remotely program the phone
books of each unit through the Web GUI. The following steps will assist you in completing the task of
programming the phone book(s).
1. Open a web browser to the VOIP-1-2-4-8 to be configured to access the Web GUI. Go to
Phone Book.
2. Under Outbound Phone Book, add entries for the extensions and IP addresses for each
emergency phone or extension/phone number that the VOIP unit will call. It is advised that
every entry be configured for the H.323 protocol.
To add an entry, click on Add. Enter the extension/phone number to be dialed in the
Destination Pattern field. Specify the Total Digits and the IP Address to which that
number is assigned.
You can now continue configuring other parameters such as SIP proxy and H.323 gateway
information. Click OK once you have completed configuring this entry. You should repeat
step (2) for all outbound phone book entries.
3. Under Inbound Phone Book, add entries for the dialing sequences that can be used to call
the VOIP unit being configured.
To add an entry, click on Add. Enter the extension/phone number to be dialed in the
Remove Prefix field. Under Channel Number, make sure that it is not set for “Hunting”
mode. Assign a Channel Number to each extension/phone number to a port on the multi-
channel VOIP units (VOIP-2, VOIP-4, VOIP-8).
You can now continue configuring other parameters such as Call Forward. Click OK once
you have completed configuring this entry. You should repeat step (3) for all inbound phone
book entries.
