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TALKSWITCH VOIP NETWORK TROUBLESHOOTING GUIDE
WWW.TALKSWITCH.COM 7
3. TESTING YOUR CONFIGURATION
This section describes using registration and placing a remote to proxy site VoIP call to
pinpoint the location of possible system configuration errors which may be causing the
problem.
3.1 VERIFY REGISTRATION
The steps below follow a sequence to ensure proper registration of the remote and proxy
units. If the remote and proxy units are registered, then initiate a VoIP call as described
in Initiate the VoIP Call on page 8, otherwise, follow the steps below to check the following
configuration settings, in order:
• Authentication
• Proxy location SIP port mapping and remote location IP address
• Remote location SIP port mapping
If the unit’s client VoIP numbers are not registered, check to see if authentication settings
are causing the problem (if you are not using Registrar Authentication, skip the procedure
below):
1. At the proxy registrar location, go to System Information -> VoIP Configuration,
then set the Registrar Authentication field to none.
2. Perform a configuration save at the proxy location, followed by a configuration save
at the remote location. This will attempt to register the remote location with the
proxy location.
3. Check the registration status again at the proxy location.
4. If the proxy and remote locations are now registered, the authentication values at the
remote location were causing the problem. You can now initiate a VoIP call.
The following steps will verify the registration status of the remote location to verify if
proxy location SIP port 5060 is valid and if the remote location IP address is configured
properly:
1. Go to System Information -> IP Configuration at the remote location and verify
that the public IP address setting is correct.
2. Go to System Information -> VoIP Configuration at the remote location and con-
firm that the correct IP addresses are entered for the Proxy and Registrar Server
names.
3. At the proxy registrar location, verify that the firewall port mappings for SIP have
5060 pointing to the proxy location private IP address settings.
4. Go to System Information -> VoIP Configuration at the proxy location, then click
the View Registrar Entries button. If registered, go to the next section, otherwise,
redo this section starting with Step 1 above.