发明授权
US07099653B2 Pre-connection call authentication within a telephony network 失效
电话网络内的预连接呼叫认证

Pre-connection call authentication within a telephony network
摘要:
A method for providing call authorization within a telephony network can include receiving a telephony connectivity request for establishing a telephony voice channel between the originating device and a receiving device. The specified receiving device can be determined and receiving device specific information that includes an authorization requirement can be accessed. A connection between the originating device and the receiving device can be established responsive to whether the authorization code satisfies the authorization requirement.
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