| 摘要 |
Means for providing anonymity in a Voice-over IP (VoIP) telephony network for calls established between a calling endpoint 120 and a called endpoint 130. The calling and called endpoints 120, 130 have respective IP addresses and can be under the control of a single IP call server 110 or separate IP call servers 110, 310. An IP address is obtained from a network address translator 150 that is operatively connected to the IP call server 110. The IP call server 110 then substitutes the IP address of the calling endpoint 120 with the IP address obtained from the network address translator 150 in all call signaling messages intended for the called endpoint 130. Conversely, the IP call server 110 substitutes the IP address obtained from the network translator 150 with the IP address of the calling endpoint 120 in all call signaling messages intended for the calling endpoint 120. The end result is the setup and establishment of a VoIP call between the endpoints 120, 130 in which the actual IP address of each endpoint is unknown to the other.
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