| 摘要 |
Prior to establishing a collect call, the called party agrees to pay an additional fee for any three-way call that may be established during the proposed collect call. If during the collect call, the called party attempts to add a third party to the collect call, a call processing system determines whether the third party's phone number is blocked from accepting a collect call. If the third party's phone number is blocked from accepting a collect call, the number will be dialed in an attempt to establish a three-way call. If the third person's phone number is not blocked from accepting a collect call, the called party to the original collect call will be advised that the phone number entered is not eligible for three-ways calling during the collect call, and the parties to the original collect call will be reconnected. If the original collect call originates from a custodial facility, the call processing system may additionally verify that that the original calling party is not disallowed from dialing any entered number, including the original called party's phone number and any subsequent third party's phone number that may be entered by the original called party, prior to the call processing system dialing said number(s). Service providers, by selectively allowing a three-way call during a collect call, to add a third party whose phone line is blocked from accepting a collect call, will earn revenues from communications that may never otherwise take place.
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