Setting The Public Ip Address - Talkswitch CT.TS005.003904 User Manual

Setting the public IP address

If you are setting up an external IP extension, or the SIP server of a TalkSwitch VoIP network,
you must configure a public IP address for the TalkSwitch system. Some service provider VoIP
networks also require the TalkSwitch system to have a public IP address.
1. Set the Type of public address. Choices are:
• Dynamic public IP address — This is the default setting. Your ISP (Internet Service
Provider) will assign different public IP addresses to your location. The TalkSwitch
system will check its public IP address every few minutes. When the public IP address
changes, the TalkSwitch system will automatically use the new one, in order to manage
VoIP calls properly.
If Dynamic public IP address is selected, the window completes the Current public IP
address, and sets Public IP address-checker server name to checkip.talkswitch.com. This
server runs an IP checker application that provides public IP addresses to
TalkSwitch systems.
• Static public IP address — A static IP address is fixed. Your Internet Service Provider
assigns the static IP address. If this location will have the SIP server for a TalkSwitch
VoIP network, we recommend using a static IP address.
If Static public IP address is selected, the window allows you to enter the Current public
IP address, and disables the Public IP address-checker server name box.
2. If you selected Dynamic public IP address, enter the Fully qualified domain name (FQDN). Get
the FQDN from your ISP.
A DDNS (Dynamic Domain Name Service) provider such as www.dyndns.com matches your
dynamic IP addresses to your FQDN, so your TalkSwitch VoIP network or external IP phones
will continue to work when the IP address changes.
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