5.6. Direct IP to Direct IP Calling
Applications:
The applications are for ADSL connection without NAT router as in Diagram A. Both parties are with fixed real IP. The Direct IP calling works when both calling and answering parties are with known fixed IP. SIP server registrations are not required in this application.
Configurations:
1.Select ¡Fixed IP¡ in the ¡Network / WAN settings¡ page,
2.Enter the items of IP, Subnet Mask, Gateway IP,
3.Click the ¡Submit¡ button.
Callings:
4.Pick up the phone, and you should hear a dial tone.
5.Press 211*21*191*4# or 211*21*191*4 to call the party with the real IP address of 211.21.191.4. Note that # key will dial out the number immediately. Dialling without # will not dial out until the auto dial timer (default=5 seconds) elapsed. In a moment, you should hear a ring back tone, and wait for the VoIP called party to answer.
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