Christopher Jos Yu

7130628, Oct 31, 2006

Apr 1, 2003

10/405651

Christopher C. Yu - Naperville IL, US
Douglas B. Alston - Fayetteville GA, US
Oral A. Christie - Roswell GA, US

BellSouth Intellectual Property Corporation - Wilmington DE

H01S 4/00

455435, 455422

Systems and methods are presented in which a routing number for telecommunication environments are stored in both a wireless network and a landline network. By storing the routing number at both the wireless network and the landline network, a “tromboning” effect is reduced, thereby providing greater efficiency.

7796989, Sep 14, 2010

Aug 10, 2006

11/502314

Christopher C. Yu - Naperville IL, US
Douglas B. Alston - Fayetteville GA, US
Oral A. Christie - Roswell GA, US

AT&T Intellectual Property I, L.P. - Reno NV

H01S 4/00

455435, 455422

A system and method are disclosed for routing telephone calls directed to a wireless unit located in the wireless network to a landline device located in the landline network. The system utilizes a location register in the form of a service control point (SCP) located in the landline network to store certain information pertaining to landline numbers and respective routing numbers associated with landline devices. The SCP is functionally coupled to a Visitors' Location Register (VLR) as well as to a landline network element that facilitates the routing of communications to both landline devices and over to the MTSO and its associated Home Location Register (HLR) in the wireless network. The system provides for the registering of the wireless unit with the landline network by the dialing of an administrative number from a landline device and causes the VLR in the landline network to directly communicate with the HLR in the wireless network to keep both the landline and the wireless networks up to date as to the registration status and specific routing for the various subscribers. The system is thereby able to route calls efficiently and to alleviate the tromboning effect that often occurs when calls are redirected from a wireless unit to a landline device.

7894814, Feb 22, 2011

Aug 9, 2010

12/852715

Christopher C. Yu - Naperville IL, US
Douglas B. Alston - Fayetteville GA, US
Oral A. Christie - Roswell GA, US

AT&T Intellectual Property I, L.P. - Reno NV

H04Q 7/38

4554351, 4554221

A system and method are disclosed for routing telephone calls directed to a wireless unit located in the wireless network to a landline device located in the landline network. The system utilizes a location register in the form of a service control point (SCP) located in the landline network to store certain information pertaining to landline numbers and respective routing numbers associated with landline devices. The SCP is functionally coupled to a Visitors' Location Register (VLR) as well as to a landline network element that facilitates the routing of communications to both landline devices and over to the MTSO and its associated Home Location Register (HLR) in the wireless network. The system provides for the registering of the wireless unit with the landline network by the dialing of an administrative number from a landline device and causes the VLR in the landline network to directly communicate with the HLR in the wireless network to keep both the landline and the wireless networks up to date as to the registration status and specific routing for the various subscribers. The system is thereby able to route calls efficiently and to alleviate the tromboning effect that often occurs when calls are redirected from a wireless unit to a landline device.

6628947, Sep 30, 2003

Dec 9, 1999

09/456672

Christopher C. Yu - Naperville IL
Douglas B. Alston - Fayetteville GA
Oral A. Christie - Roswell GA

BellSouth Intellectual Property Corporation - Wilmington DE

H01S 400

455435, 455422

A system and method are disclosed for routing telephone calls directed to a wireless unit located in the wireless network to a landline device located in the landline network. The system utilizes a location register in the form of a service control point (SCP) located in the landline network to store certain information pertaining to landline numbers and respective routing numbers associated with landline devices. The SCP is functionally coupled to a Visitors Location Register (VLR) as well as to a landline network element that facilitates the routing of communications to both landline devices and over to the MTSO and its associated Home Location Register (HLR) in the wireless network. The system provides for the registering of the wireless unit with the landline network by the dialing of an administrative number from a landline device and causes the VLR in the landline network to directly communicate with the HLR in the wireless network to keep both the landline and the wireless networks up to date as to the registration status and specific routing for the various subscribers. The system is thereby able to route calls efficiently and to alleviate the tromboning effect that often occurs when calls are redirected from a wireless unit to a landline device.