Talkaphone VOIP-8 VoIP Interface (8 channels) - Manual (Page 13)

VOICE OVER IP INTERFACE
Installation and Operation Manual
13
The following are examples of other types of VoIP setups you can design.
Figure 1-14: Many-to-One IP-Native Head End Configuration
(3) Figure 1-14 is an example of a configuration with a completely IP-native head end. With the IP-native
PBX, there isn’t a need for VOIP units at the head end.
Figure 1-15: One-to-One Closed Configuration
(4) Figure 1-15 is an example of a closed configuration with no PBX or PSTN lines. This configuration
type relies solely on the network infrastructure for call routing.
IMPORTANT NOTE: For the Emergency Phone System to work through a power outage, all components of
the data path (i.e. the VOIP units, routers, hubs, switches, etc.) must be on back-up power.