Signaling in call transfer calling operations to control the initiation of secondary number telephone service features
First Claim
1. A method for controlling the initiation of secondary number telephone service features during a call transfer calling operation, comprising the steps of:
- responsive to receipt of a telephone call dialed to a primary telephone number subscribing to a call transfer service feature, retrieving at least one of a plurality of secondary telephone numbers associated with the primary telephone number;
setting up a transfer call via at least one switching node to a telephone for each of the retrieved plurality of secondary telephone numbers; and
signaling each switching node in connection with setting up the transfer call not to activate a service feature associated with the secondary telephone numbers.
1 Assignment
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Accused Products
Abstract
Responsive to an incoming call made to a primary telephone number subscribing to a call transfer calling service feature, a first switching node queries a data base to retrieve at least one transfer-to secondary number. The first switching node then signals other switching nodes in the telephone network to set up an outgoing legs to each secondary number telephone. The signals transmitted by the first switching node further direct each of the other switching nodes in the network to inhibit the initiation of any call transfer service features associated with the secondary number telephones. The signals may further include a transfer service indicator and a counter identifying the number of prior call transfer which have occurred in connection with the originally received call. If the counter exceeds a given preset threshold, the other switching nodes reject further transfer of the call.
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Citations
33 Claims
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1. A method for controlling the initiation of secondary number telephone service features during a call transfer calling operation, comprising the steps of:
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responsive to receipt of a telephone call dialed to a primary telephone number subscribing to a call transfer service feature, retrieving at least one of a plurality of secondary telephone numbers associated with the primary telephone number; setting up a transfer call via at least one switching node to a telephone for each of the retrieved plurality of secondary telephone numbers; and signaling each switching node in connection with setting up the transfer call not to activate a service feature associated with the secondary telephone numbers. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A telephone system providing call transfer calling operations, comprising;
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a plurality of interconnected switching nodes, including;
a first switching node for receiving an incoming call dialed to a primary number subscribing to a call transfer calling service feature and setting up a transfer call to at least one of a plurality of identified secondary number telephones; and
, at least one second switching node to which the transfer call is destined; andwherein the first switching node signals each second switching node in connection with the transfer call set-up not to activate with respect to the transfer call a service feature associated with the secondary number telephones. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A telephone system, comprising:
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a plurality of switching nodes; a plurality of voice trunks connecting the plurality of switching nodes; a plurality of signaling links connecting the plurality of switching nodes; and wherein an originating one of the switching nodes transmits signals over the signaling links to certain other ones of the switching nodes to set up on the voice trunks a transfer call to a destination telephone, the signals including a control command instructing the certain other ones of the switching nodes to inhibit initiation of service features associated with the destination telephone for the duration of the transfer call. - View Dependent Claims (16, 17, 18, 19)
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20. A method for controlling service feature initiation during a call transfer calling operation wherein at least one outgoing call leg is set up to a destination telephone through at least one switching node, comprising the steps of:
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transmitting a command control signal during call set up identifying each outgoing call leg as a part of a transfer call; and for the duration of the transfer call, inhibiting at each switching node receiving the transmitted command control signal the initiation of call transfer service features associated with the destination telephone connected to each outgoing call leg. - View Dependent Claims (21, 22, 23)
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24. A method for controlling the initiation of secondary number telephone service features during a call transfer calling operation, comprising the steps of:
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responsive to receipt of a telephone call to a telephone number subscribing to a call transfer service feature, retrieving at least one of a plurality of secondary telephone numbers associated with the telephone number; setting up a transfer call via at least one switching node to a telephone for each of the retrieved plurality of secondary telephone numbers; signaling each switching node in connection with setting up the transfer call with a counter identifying the number of previous call transfers associated with the telephone call; and comparing the call transfer number from the counter with a present threshold and inhibiting further transfers of the telephone call if the counter number exceeds the threshold. - View Dependent Claims (25, 26, 27, 28)
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29. A telephone system, comprising:
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a plurality of switching nodes; a plurality of voice trunks connecting the plurality of switching nodes; a plurality of signaling links connecting the plurality of switching nodes; and wherein a currently handling one of the switching nodes transmits signals over the signaling links to certain other ones of the switching nodes to set up on the voice trunks a transfer call to a destination telephone, the signals including a counter identifying the number of previous call transfers associated with the transfer call, the counter interpreted by the other switching nodes to inhibit initiation of service features associated with the destination telephone if the call transfer number exceeds a preset threshold. - View Dependent Claims (30, 31, 32, 33)
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Specification