| 摘要 |
A voice firewall for providing communication between a user endpoint at a user location and a provider endpoint at a provider location is provided. The voice firewall includes a command input port for receiving a connect command that includes a private connection address embedded within a data portion of the connect command. The voice firewall is configured to manipulate the connect command by substituting a public connection address for the private connection address. The voice firewall also includes a voice communication port that is associated with the private connection address on a private side of the firewall and the public connection address on a public side of the voice firewall.
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