Required ports to use Google Talk

If you’re having trouble connecting to Google Talk through your firewall
or proxy, it may be because some necessary ports are blocked.

In order to connect to Google Talk and start sending IMs, you’ll need to
enable TCP connections to on port 5222, or on port 443.

If you’d like to make calls or transfer files through Google Talk, you need to:

  • Enable UDP connections to anywhere on any port; or
  • Enable TCP connections to anywhere on port 443.

If you’re behind a public or corporate network that is blocking these
ports or protocols, please contact your local network administrator for
further instructions.

WindyCityTech Blogger
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