Talkaphone VOIP-8 VoIP Interface (8 channels) - Manual (Page 22)

VOICE OVER IP INTERFACE
Installation and Operation Manual
22
Phone Book Design Example 2
Let us look at another example:
Figure 2-2: Example of a many-to-one VoIP System Configuration
In this scenario, we have a many-to-one closed system. This setup does not make use of a PBX or
PSTN lines. The system has been designed so that Emergency Phones 1 and 2 will share line 201 and
Emergency Phones 3 and 4 will share line 202. The emergency phones should have been properly
programmed so that if a busy signal is received, the emergency phone will try to dial the same number or
it will dial an alternate number.
If we look at the phone book configuration for the VOIP-2 unit connected to Emergency Phones 1
and 2, we will find the following:
Inbound Phone Book entry: 101 assigned to Channel 1
102 assigned to Channel 2
Outbound Phone Book entry: 201 assigned to 192.168.37.3
Similar programming goes for the VOIP-2 unit connected to Emergency Phones 3 and 4.
If we look at the phone book configuration for the head end VOIP unit connected to the Attendant
Phone, it should be programmed with:
Attendant Phone:
Inbound Phone Book entries:
201 assigned to Channel 1
202 assigned to Channel 2
Outbound Phone Book entries: 101 assigned to 192.168.37.1