Patent ID: 7406306
Filing Date: 2008-07-29
Classification: H04L,H04M,H04Q,H04W

Abstract:
1. A method for placing a call between a first client and a second client, the method comprising: receiving a SIP call request message; challenging a device that originated the SIP call request message to authenticate itself, the device performing a first authentication process based on a username and a password associated with the device to generate a first authentication result as a result of authenticating itself; authenticating the SIP call request message by performing a second authentication process based on the username and the password associated with the device to generate a second authentication result and comparing the second authentication result to the first authentication result; evaluating at least one calling feature in a profile of the second client; identifying, based on the at least one calling feature, an authentic originating client when the second authentication result matches the first authentication result; searching a database to determine whether the database includes a client billing tag that identifies the authentic originating client as a party responsible for paying for the call; authorizing the call to be completed if the client billing tag is included in the database; and not authorizing the call to be completed if the client billing tag is not included in the database.