User`s manual

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this feature. When enable it, you can hide
your VOIP traffic from ISP’s monitor.
SIP session keep mode Select the following NAT SIP session
keeping method.
z Disable
z Empty packet (0x0D and 0x0A will be
send)
z SIP Options (send SIP option)
z SIP Register (send SIP register
message)
z SIP Ping (send Nortel SIPping)
SIP session keep interval (sec) The interval to send the SIP session keep
message out. The method was defined in
“SIP session keep mode”.
NAT traversal setting Support through NAT methods
z Disable
z IP Sharing: Use DMZ to map the
private Micronet IP address to a public
one. You need to do the DMZ on IP
sharing box.
z STUN: Use STUN to do NAT
transversal. This method can only work
for NAT type 1 and 2.
NAT device IP address The DMZ IP address used for IP sharing
NAT transversal mode.
STUN server The STUN server IP address
STUN port The STUN port (default is 3478)
Generate tone for 100 trying Whether to generate tone when receive the
SIP message 100 trying or not. You can
specify to generate the defined ring back
tone or a custom tone to be played.
Custom Tone Please refer to Tone Settings for the detail
of custom tone for 100 trying.
1. Press the “Apply” button (at the bottom) after you finish to save changes.
2. Press the “Reboot” button to apply the changes.