ZyXEL Communications MAX-206M1R series - Figure 2 Wimax Modems Voip Features - Peer-To-Peer Calls; Figure 3 Wimax Modems Voip Features - Calls Via Voip Service Provider; Make Calls Via Internet Telephony Service Provider

Chapter 1 Getting Started
User’s Guide
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1.1.2 Make Calls via Internet Telephony Service Provider
In a home or small office environment, you can use the WiMAX Modem to make
and receive the following types of VoIP telephone calls:
• Peer-to-Peer calls - Use the WiMAX Modem to make a call directly to the
recipient’s IP address without using a SIP proxy server.
Figure 2 WiMAX Modem’s VoIP Features - Peer-to-Peer Calls
• Calls via a VoIP service provider - The WiMAX Modem sends your call to a VoIP
service provider’s SIP server which forwards your calls to either VoIP or PSTN
phones.
Figure 3 WiMAX Modem’s VoIP Features - Calls via VoIP Service Provider