ZyXEL Communications P-2302R Series User Manual

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P-2302R Series User’s Guide
Chapter 1 Introducing the Prestige
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Figure 3   IP-PBX Application
1.5.3  Make Peer-to-peer Calls
Use the Prestige to make a call to the recipient’s IP address without using a SIP proxy server 
Peer-to-peer calls are also called “Point to Point” or “IP-to-IP” calls. You must know the 
peer’s IP address in order to do this.
The following figure shows a basic example of how you would make a peer-to-peer VoIP call. 
You use your analog phone (A in the figure) and the Prestige (B) changes the call into VoIP. 
The Prestige then sends your call through your modem or router (C) and the Internet to the 
peer VoIP device (D).
Figure 4   Peer-to-peer Calling