Draytek Vigor2920n User Manual page 261

Status
STUN Server
External IP
SIP PING interval
Profile Name
Register via
lines with numbers (30 – 39) offered for ISDN-S0. You can
specify any one of them as ring port for specified SIP account.
By the way, ISDN-S0 can be used by mapping with MSN
numbers.
Show the status for the corresponding SIP account. R means
such account is registered on SIP server successfully. – means
the account is failed to register on SIP server.
Type in the IP address or domain of the STUN server.
Type in the gateway IP address.
The default value is 150 (sec). It is useful for a Nortel server
NAT Traversal Support.
Assign a name for this profile for identifying. You can type
similar name with the domain. For example, if the domain name
is draytel.org, then you might set draytel-1 in this field.
If you want to make VoIP call without register personal
information, please choose None and check the box to achieve
the goal. Some SIP server allows user to use VoIP function
without registering. For such server, please check the box of
Call without Registration. Choosing Auto is recommended.
The system will select a proper way for your VoIP call.
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Vigor2920 Series User's Guide