CounterPath X-Lite 4 for Mac User Guide - Manual (Page 33)

X-Lite 4 for Mac User Guide
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Accounts – Topology
Table 5: Accounts – Topology
Field Description
Firewall traversal
method Leave the default. Or if you have problems making phone calls, contact your VoIP service provider for
information on which of the other options might work:
• Auto detect using ICE: Automatically determine the contact address for signaling traffic.
Advertise the local IP, public IP (discovered via STUN, if available), and media relay IP (discovered via
TURN, if available), and use these to automatically determine the best route for media traffic during
calls.
• Discover public IP address: Advertise the public IP address (discovered via STUN) for the contact
address for signaling traffic, and for the connection address for media traffic.
• Use media relay (TURN): Advertise the public IP address (discovered via STUN) for the contact address
for signaling traffic.
Advertise the address of a media relay server (discovered via TURN) for the connection address for
media traffic.
• None: Advertise the local IP address only for both signaling and media traffic.
Server address • Empty: Discover the address of the firewall traversal server (the STUN or TURN server), if available,
using DNS SRV.
• Specified: Use the firewall traversal server specified as either an IP address or a fully qualified hostname.
Range of ports The appropriate setting depends on your computer setup:
• Checked: If your computer is behind a restrictive firewall that only allows specific port ranges to be
used. Enter the range of ports to use for your SIP account. (You must also open those ports on your
firewall; refer to applicable firewall documentation for information.)
• Unchecked: If your computer is not behind a restrictive firewall.