Method and system for automatically connecting telephone calls to multiple devices having different directory numbers

• US 5,963,864 A
• Filed: 05/31/1996
• Issued: 10/05/1999
• Est. Priority Date: 05/31/1996
• Status: Expired due to Fees

• Current Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Original Assignee: BellSouth Intellectual Property Management Corporation (AT&T, Inc.)
• Inventors: O'Neil, Douglas Rutherford, Blount, JoAnn, Bedingfield, J. Carl
• Primary Examiner(s): Urban, Edward F.
• Application Number:
  US08/656,561
• Time in Patent Office: 1,222 Days
• Field of Search: 455/445, 455/414, 455/416, 455/458, 455/460, 455/463, 455/519, 455/433
• US Class Current: 455/445
• CPC Class Codes: H04M 2203/5027 Dropping a party from a conference
• CPC Class Codes: H04M 2207/206 composed of PSTN and wireless network
• CPC Class Codes: H04M 3/465 Arrangements for simultaneously calling a number of substations until an answer is obtained
• CPC Class Codes: H04M 3/56 Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities video conference systems H04N7/15
• CPC Class Codes: H04W 4/16 Communication-related supplementary services, e.g. call-transfer or call-hold

Abstract

A system and method for providing telecommunication extension service to a subscriber with at least a first unit having a first number and a second unit having a second number. Upon receipt of a communication directed to the number associated with the one of the units, ringing is provided to both units. A party may answer either unit, or both units may be answered. If one unit is answered, then the other unit is provided with ringing for a predetermined number of rings or for a preselected amount of time. If the other unit is answered, then the communication is connected in a conference call to the other unit, whereby the communication is connected to both units. The conference call may be monitored for drop-out of one of the units. If one unit drops out, the other unit may remains connected. A disconnection feature allows a party who answers on a unit to provide an indication to discontinue ringing to the other unit, or to disconnect the other unit. If a unit is not engaged in a conference call, then that unit may be used to place and receive telecommunications even if the other unit is engaged.

Claims

1. In a telecommunications network, a system for providing a telecommunications extension service to a subscriber who has a first unit for telecommunications and a second unit for telecommunications, said first unit having a first number used for communication routing, and said second unit having a second number used for communication routing, comprising:

a switch operative

to receive a communication directed to said first number associated with said first unit,

to suspend the processing of said communication, and

to request communication processing instructions from a first programmable network element;

said first programmable network element being connected to said switch, and in response to receipt of said request for said communication processing instructions, said first programmable network element being operative

to check whether said second unit is available,

if said second unit is available, to provide said communication processing instructions to said switch, said processing instructions including a direction to route said communication to a second programmable network element;

said switch being further operative to receive and respond to said communication processing instructions by routing said communication to said second programmable network element; and

said second programmable network element being operative to respond to the receipt of said communication by setting up a first leg of a conference call from said communication to said first unit, and

setting up a second leg of said conference call from said communication to said second unit, and

causing ringing to be provided to said first unit and said second unit.

2. The system of claim 1, wherein said second unit is a wireless unit;

wherein said first programmable network element is directly connected to a home location register via a data link;

wherein said first programmable network element is further operative to check whether said wireless unit is available by

formatting a request for availability information relating to said wireless unit in a wireless network protocol, and

sending said request for said availability information over said data link that directly connects said first programmable network element and said home location register;

wherein said home location register is operative to respond to said request for said availability information by sending said availability information over said data link to said first programmable network element; and

wherein said first programmable network element is further operative to receive said availability information, and based thereon, to provide said switch with said communication processing instructions.

3. The system of claim 1, wherein said second programmable network element is further operative

to detect whether either said first unit or said second unit is answered in response to said ringing before the other unit of said first unit or said second unit is answered,

to connect said communication to the answered unit of said first unit or said second unit, and

to continue to have ringing provided to said other unit for a predetermined number of rings or for a preselected amount of time so that said other unit may be answered within said predetermined number of rings or said preselected amount of time.

4. The system of claim 3, wherein said second programmable network element is further operative to connect said communication to said other unit, if said other unit is answered, whereby said communication is connected to said first unit and said second unit.

5. The system of claim 4, wherein said second programmable network element is further operative

to monitor said communication connected to said answered unit and said other unit for the drop-out of one unit of said answered unit or said other unit;

and

in response to detecting said drop-out of said one unit, to disconnect said communication from said one unit, whereby said communication remains connected to the unit other than said one unit.

6. The system of claim 1, wherein said second programmable network element is further operative, if either said first unit or said second unit is answered in response to said ringing before the other unit of said first unit or said second unit, then

to connect said communication to the answered unit of said first unit and said second unit, and

to provide that said ringing be discontinued to said other unit, whereby said communication is connected only to said answered unit, and said other unit may not be answered after said connection of said communication to said answered unit.

7. The system of claim 6, wherein said second programmable network element is further operative to respond to receipt of an indication from said answered unit to discontinue said ringing by providing that said ringing be discontinued to said other unit.

8. In a telecommunications network, a method for checking the availability of a wireless unit to receive a communication, comprising the steps of:

a. receiving a communication at a service switching point;

b. causing said service switching point

to suspend the processing of said communication, and

to launch a query to a service control point for communication processing instructions;

c. in response to said query, causing said service control point to check whether said communication is directed to a wireless number associated with said wireless unit;

d. if said communication is directed to said wireless number associated with said wireless unit, then causing said service control point

to format a request for availability information relating to said wireless unit in a wireless network protocol, and

to send said request for said availability information over a data link that directly connects said service control point and a home location register;

e. in response to said request for said availability information, causing said home location register to send said availability information over said data link to said service control point; and

f. in response to receipt of said availability information, causing said service control point to provide said service switching point with said communication processing instructions.

9. The method of claim 8, further comprising the step of:

g. prior to causing said service control point to provide said service switching point with said communication processing instructions, and in response to receipt of said availability information, causing said service control point

to examine the content of said availability information, and

to base the content of said communication processing instructions on said content of availability information.

10. The method of claim 8,

g. prior to causing said service control point to provide said service switching point with said communication processing instructions, and in response to receipt of said availability information, causing said service control point

to examine the content of said availability information, and

if said content indicates that said wireless unit is available, then to instruct said service switching point in said communication processing instructions to route said communication to said wireless unit.

11. The method of claim 8,

g. prior to causing said service control point to provide said service switching point with said communication processing instructions, and in response to receipt of said availability information, causing said service control point

to examine the content of said availability information, and

if said content indicates that said wireless unit is unavailable, then to instruct said service switching point in said communication processing instructions to provide the caller with notice that said wireless unit is unavailable.

12. In a telecommunications network, a system for providing a telecommunications extension service to a subscriber who has a first unit having a first directory number for routing telecommunications to the first unit and a second unit having a second directory number for routing telecommunications to the second unit, comprising:

a switch operative

to receive a communication directed to said first directory number, and

in response, to route said communication to a programmable network element in said telecommunications network;

said programmable network element being operative to respond to the receipt of said communication by

setting up a first leg of a conference call from said communication to said first unit by using said first directory number to set up said first leg,

setting up a second leg of said conference call from said communication to said second unit by using said second directory number to set up said second leg,

causing first ringing to be provided to said first unit, and

causing second ringing to be provided to said second unit; and

wherein said programmable network element is directly connected to a home location register via a data link and is further operative to check whether said wireless unit is available by

formatting a request for availability information relating to said wireless unit in a wireless network protocol, and

sending said request for said availability information over said data link that directly connects said programmable network element and said home location register;

wherein said home location register is operative to respond to said request for said availability information by sending said availability information over said data link to said programmable network element; and

wherein said programmable network element is further operative to receive said availability information, and based thereon, to provide said switch with said communication processing instructions.

13. The system of claim 12, wherein said first unit has a non-service number;

wherein said switch is operative to receive a non-service communication directed to said non-service number; and

wherein said switch is further operative to route said non-service communication to said first unit and to cause non-service ringing to be provided to said first unit, said non-service ringing being distinctive from said first ringing.

14. In a telecommunications network, a system for providing a telecommunications extension service to a subscriber who has a first unit having a first directory number for routing telecommunications to the first unit and a second unit having a second directory number for routing telecommunications to the second unit, comprising:

a switch operative

to receive a communication directed to said first directory number associated with said first unit, and

to request communication processing instructions from a programmable network element in said telecommunication network; and

said programmable network element being responsive to the receipt of said request for said communication processing instructions,

to set up a first leg of a conference call from said communication to said first unit,

to set up a second leg of said conference call from said communication to said second unit, and

to cause ringing to be provided to said first unit and said second unit; and

wherein said programmable network element is directly connected to a home location register via a data link and is further operative to check whether said wireless unit is available by

formatting a request for availability information relating to said wireless unit in a wireless network protocols and

sending said request for said availability information over said data link that directly connects said programmable network element and said home location register;

wherein said home location register is operative to respond to said request for said availability information by sending said availability information over said data link to said programmable network element; and

wherein said programmable network element is further operative to receive said availability information, and based thereon to provide said switch with said communication processing instructions.

15. The system of claim 14, wherein said programmable network element is further operative to be responsive to said receipt of said request by, before setting up said second leg, checking whether said second unit is available, and only if said second unit is available, setting up said second leg.

16. The system of claim 14, wherein said programmable network element is further operative

to detect whether either said first unit or said second unit is answered in response to said ringing before the other unit of said first unit or said second unit is answered,

to connect said communication to the answered unit of said first unit or said second unit, and

to continue to have ringing provided to said other unit for a predetermined number of rings or for a preselected amount of time so that said other unit may be answered within said predetermined number of rings or said preselected amount of time.

17. The system of claim 16, wherein said programmable network element is further operative to connect said communication to said other unit, if said other unit is answered, whereby said communication is connected to said first unit and said second unit.

18. The system of claim 17, wherein said programmable network element is further operative

to monitor said communication connected to said answered unit and said other unit for the drop-out of one unit of said answered unit and said other unit;

and

in response to detecting said drop-out of said one unit, to disconnect said communication from said one unit, whereby said communication remains connected to the unit other than said one unit.

19. The system of claim 14, wherein said first unit is a wireline unit;

wherein said second unit is a wireless unit; and

wherein said programmable network element is further operative, if either said wireline unit or said wireless unit is answered in response to said ringing before the other unit of said wireline unit or said wireless unit, then

to connect said communication to the answered unit of said wireline unit or said wireless unit, and

to provide that said ringing be discontinued to said other unit, whereby said communication is connected only to said answered unit, and said other unit may not be answered after said connection of said communication to said answered unit.

20. The system of claim 19, wherein said programmable network element is further operative to respond to a receipt of an indication from said answered unit to discontinue said ringing by providing that said ringing be discontinued to said other unit.