Digicom VoiceGate ATA, User Manual

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4.2.3.4.3 STUN Setting
In this page you can Enable/Disable the STUN and configure the STUN Server IP address.
This function helps your VoIP Gateway working properly behind NAT. To change these settings please follow
your VoIP Service Provider’s information. When you complete the setting, please click the Submit button.
STUN Default is Off (disable) . When it was On (enable) . It enables STUN
(Simple Transversal of UDP through NAT) if the VoIP Gateway is behind a
NAT enabled router and the router has no ALG for SIP, or NONE to disable
STUN (VoIP Gateway is not to use STUN for NAT traversal). VoIP Gateway
also supports a proprietary implementation of NAT traversal where the
Service provider is expected to provide some relay support. If NONE is
selected, then based on the responses received, the VoIP Gateway will
dynamically determine if the SIP Server supports the proprietary
implementation.
Note: Even when STUN is enabled, the VoIP Gateway does an automatic
detection of the presence of SIP ALG and disables the use of STUN. This is
to avoid some media problems arising out of the behavior of some ALGs
when STUN is used at the user end.
STUN Server Enter the IP address or Domain Name of the STUN Server. The default is
stun.xten.com . This field is applicable only if USE STUN is selected as the
NAT traversal technique.
STUN Port Enter the port number on which the STUN server listens for requests from
the STUN Client on VoIP Gateway. The range is 1024 to 65535. The default
is 3478 . This field is applicable only if USE STUN is selected as the NAT
traversal technique.
Submit Button When you finished the setting, please click the Submit button.
Reset Button You can reset the configured parameters before you submit
Back Button Go back to the previous web page