Talkswitch CT.TS005.003904 User Manual page 251

3. Select a Profile (SP 1 to SP 4), which are for configuring service provider profiles.
4. Select the Activate Profile check box.
5. Enter the Profile name. The default profile name is Service provider n (e.g. Service provider 1).
6. If your service provider requires you to register using your private IP address, select the
Disable public IP address substitution check box.
7. If your service provider requires you to set up keep alive messages, and if your router does
not support uPNP, set up keep alive messages.
Keep alive messages maintain the connection from the TalkSwitch unit, through your router,
to the service provider's SIP server.
a) Select the Enable NAT keep alives check box.
b) Click Settings. The Keep Alive Settings window appears.
c) Select the type of ping, as directed by your service provider. Choices are:
• Simple ping — A standard ping message that works with all SIP servers.
• Nortel ping — A longer but more reliable ping message that only works with specific
Nortel SIP servers (e.g. Nortel MCS 5200).
d) If necessary, change the ping frequency, as directed by your service provider. The default
setting is 45 seconds.
8. Enter the IP addresses or FQDNs, as provided by the service provider, into the following
boxes. If the service provider does not specify a value, leave the box blank.
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