Sip-to-sip calling – LevelOne VOI-7011 User Manual
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5.2. SIP-to-SIP Calling
Applications:
The SIP-to-SIP calling works when both calling and answering
parties are registered to SIP server with given registered phone
numbers. The ADSL connections can be as in either Diagrams
A or B. Both parties are registered to SIP server under NAT
router. For Diagram A without NAT router, you may select
NAT mode to enable the embedded NAT router. For Diagram
B with external NAT router, you may select Bridge mode to
disable the embedded NAT.
Configurations:
1.
Select either “NAT“ or “Bridge” in accord with your
network in “WAN settings” page,
2.
Select “DHCP Client” to automatically get an IP address
from NAT router.
3.
Remember to click the “Submit” button,
4.
Select Active “ON” in the “SIP settings / Service Domain”
page,
5.
Enter the Register Name, Register Password, Proxy
Server, and Outbound Proxy,
6.
Select “ON” in the “STUN setting”, if Outbound Proxy is
NOT available.