US Patent No: 5,579,379

Number of patents in Portfolio can not be more than 2000

Personal communications service having a calling party pays capability

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ATTORNEY / AGENT: (SPONSORED)
 

Importance

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Abstract

The Advanced Intelligent Network (AIN) wireline system connects to and controls processing of calls to a Personal Communication Service subscriber's wireless handset via a home base station or a wireless communication network. Depending on its current location, the subscriber's handset automatically registers with the base station or with a mobility controller of the wireless network. A new registration with the base station when the handset comes within range causes that station to update the subscriber's home location register in a central data base of the AIN. Similarly, when a handset first registers with a mobility controller, that controller updates the subscriber's home location register in the central data base of the AIN. In response to calls directed to the subscriber, the AIN accesses the home location register to determine the current location where the handset is registered. The AIN then uses that data to route the call to the current location. In order for this system to operate efficiently, the handset must remain activated to receive calls at all times. This is facilitated through the use of a Calling Party Pays (CPP) service permitting a subscriber to pay the cellular air time charges for selected callers. Other callers are instructed that they will be billed for these charges.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
VERIZON SERVICES CORP.ARLINGTON, VA376

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
D'Amico, Peter J Lindenwold, NJ 1 160
Jones, Douglas R Medford, NJ 20 290
Schwartz, Laurie D Garrett Park, MD 8 1774

Cited Art

Patent Info (Count) # Cites Year
 
MOTOROLA, INC. (10)
4,737,978 Networked cellular radiotelephone systems 141 1986
4,775,999 Registration of radiotelephones in networked cellular radiotelephone systems 177 1987
4,989,230 Cellular cordless telephone 301 1988
5,127,100 Digital radio communication system and two way radio 69 1989
5,109,400 Communication system with registration and two way radio 63 1989
5,020,093 Cellular telephone operable on different cellular telephone systems 139 1989
5,179,721 Method for inter operation of a cellular communication system and a trunking communication system 90 1990
5,127,042 Cellular cordless telephone 215 1991
5,090,051 Radio communication system and method for connecting an incoming call to a wireless telephone 122 1991
5,303,297 Dynamic pricing method and apparatus for communication systems 194 1991
 
BELL TELEPHONE LABORATORIES, INCORPORATED (8)
4,191,860 Data base communication call processing method 385 1978
4,313,035 Method of providing person locator service 414 1980
4,611,094 Method for customer definable telephone capability 335 1983
4,802,220 Method and apparatus for multi-channel communication security 55 1985
4,899,373 Method and apparatus for providing personalized telephone subscriber features at remote locations 273 1986
4,788,718 Call data collection and modification of received call distribution 221 1987
5,029,163 Synchronous protocol data formatter 43 1988
4,932,042 Spontaneous voice and data messaging 159 1989
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (3)
4,980,907 Telecommunication combination comprising a telepoint and a portable radio terminal 125 1989
5,210,787 Subscriber interrogation point 124 1991
5,200,957 Mobile assisted handoff 53 1991
 
ALCATEL CIT (2)
4,825,349 Emergency D.C. power supply with the emergency state being indicated by polarity reversal 36 1988
5,040,177 Access network for a cordless telephone service 60 1990
 
ALCATEL N.V. (2)
4,562,572 Cellular mobile radio service telephone system 77 1983
5,319,699 Wireless telephone service subscriber call routing method 58 1991
 
CELLCO PARTNERSHIP D/B/A VERIZON WIRELESS (2)
5,067,147 Microcell system for cellular telephone system 123 1991
5,216,703 Piggy-back number and routing isolation for cellular telephone switches 68 1991
 
NORTEL NETWORKS LIMITED (2)
4,771,448 Private cellular system 159 1987
5,260,987 Mobile communications 111 1993
 
U.S. PHILIPS CORPORATION (2)
4,748,681 Integrated-services radio transmission system 42 1986
4,765,753 Method and apparatus for handing-over a radio connection from one radio cell to another radio cell of a digital radio transmission system 270 1987
 
AG COMMUNICATION SYSTEMS CORPORATION, 2500 W. UTOPIA RD., PHOENIX, AZ 85027, A DE CORP. (1)
4,866,703 Integrated services digital network module 30 1987
 
AMERICAN TELEPHONE AND TELEGRAPH COMPANY, AT&T BELL LABORATORIES (1)
4,756,020 Method and apparatus for disallowing the extension of a call through a network 182 1987
 
ANDO ELECTRIC CO., LTD. (1)
4,922,482 Apparatus and method for creating a data bus access contest 15 1988
 
APPEX CORPORATION (1)
5,142,654 Cellular telephone system and method for dynamically switching between call routing options 95 1990
 
ASPECT COMMUNICATIONS CORPORATION (1)
5,109,405 Automated call screening 171 1990
 
AT&T CORP. (1)
5,381,467 Telephone call billing system 119 1992
 
BELL ATLANTIC NETWORK SERVICES, INC. (1)
5,105,197 Mobile access to telecommunications network 37 1991
 
CANON KABUSHIKI KAISHA (1)
5,210,785 Wireless communication system 85 1989
 
CONTEL CELLULAR INC. (1)
5,090,050 Method and apparatus for communicating with radio telephones 68 1991
 
EC CORPORATION (1)
4,658,416 Automatic call transfer system capable of carrying out call transfer without manual operation 105 1985
 
ERICSSON INC. (1)
5,237,612 Cellular verification and validation system 159 1991
 
FUJITSU LIMITED (1)
5,117,502 Mobile radio communication system 48 1991
 
GTE WIRELESS SERVICE CORPORATION (1)
5,144,649 Cellular radiotelephone credit card paystation method 122 1990
 
HASHIMOTO CORPORATION (1)
4,878,243 Call forwarding system and method 27 1987
 
HITACHI TELECOM TECHNOLOGIES, LTD. (1)
4,680,785 Personal-signaling communication system 242 1984
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
5,452,350 Subscriber call routing processing system 185 1992
 
IWATSU ELECTRIC CO., LTD. (1)
5,210,786 Portable telephone system using stratified exchange system 37 1991
 
J.S. TELECOMMUNICATIONS, 36-38, RUE DE LA PRINCESSE 78430 LOUVECIENNES (FRANCE), A FRENCH CORP. OF FRANCE (1)
5,014,269 Microcomputer integrating a digital subscriber terminal for an integrated service digital network 29 1989
 
KABUSHIKI KAISHA TOSHIBA (1)
4,996,715 Radio telephone apparatus 53 1988
 
MC CAW CELLULAR COMMUNICATIONS, INC., BELLEVUE, WA (1)
5,197,092 Location registration system for a personal communicator such as a cellular telephone 116 1990
 
MEGAPHONE, INC. (1)
5,146,491 Telephone billing method 158 1991
 
MESSAGER PARTNERS (1)
5,153,907 Telephone system gateway interface 53 1991
 
METROFONE, INC. (1)
4,775,997 System for interfacing a standard telephone set with a radio transceiver 182 1987
 
MITSUBISHI ELECTRIC CORPORATION (1)
4,698,839 Mobile telephone switching office 95 1986
 
MOTOROLA MOBILITY LLC (1)
5,327,480 Method and apparatus in a communication system for completing an inbound call 45 1993
 
MOTOROLA MOBILITY, INC. (1)
5,311,571 Method and apparatus for performing inbound calling in a wireless communication system having fixed communication units coupled to a telephone system by a telephone line shared in common 20 1992
 
MUREX LICENSING CORPORATION (1)
4,757,267 Telephone system for connecting a customer to a supplier of goods 521 1987
 
NEC CORPORATION (1)
4,903,319 Portable radio telephone having power saver 70 1987
 
NETWORK ACCESS CORPORATION (1)
5,315,636 Personal telecommunications system 230 1991
 
NIPPON TELEGRAPH AND TELEPHONE CORPORATION (1)
5,251,248 Telephone network having personal numbers for position-independent 94 1991
 
NOKIA MOBILE PHONES LTD. (1)
5,259,018 Radio telephone system having a handset adapted to be removably connected and containing a NAM for storing a telephone number identifying the handset 52 1992
 
NTT MOBILE COMMUNICATIONS NETWORK INC. (1)
4,852,148 Radio telephone system 46 1988
 
PACIFIC TELESIS GROUP (1)
4,932,049 Cellular telephone system 81 1989
 
RACAL RESEARCH LIMITED (1)
4,748,655 Portable telephones 224 1985
 
RADIO FREQUENCY SYSTEMS, INC. (1)
4,654,879 Cellular mobile radio subscriber location detection 68 1985
 
SBC PROPERTIES, L.P. (1)
5,325,419 Wireless digital personal communications system having voice/data/image two-way calling and intercell hand-off 225 1993
 
SIEMENS AKTIENGESELLSCHAFT (1)
5,276,731 Method and apparatus for handling incoming telephone calls 278 1991
 
SPEEDSTREAK, L.L.C. (1)
5,157,709 Radio communications system adaptively assigning channels using power levels of idle channels 102 1990
 
SYNIVERSE TECHNOLOGIES, INC. (1)
4,901,340 System for the extended provision of cellular mobile radiotelephone service 148 1988
 
TELSTRA CORPORATION LIMITED (1)
5,272,747 Mobile pay telephone system 103 1991
 
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE (1)
5,119,482 Flight system for converting 12 volts 32-bit INS data into 5 volts 8-bit data pattern in real time 16 1989
 
WESTERN ELECTRIC COMPANY, INCORPORATED (1)
4,611,096 Telephone office service assist and handoff 209 1983
 
WEYERHAEUSER COMPANY (1)
4,883,701 Infant car seat liner 46 1988
 
WIRELESS SPECTRUM TECHNOLOGY INC. (1)
4,965,850 System for and method of assigning frequencies in a communications system with no central control of frequency allocation 78 1989
 
OTHER [CHECK PATENT PROFILE FOR ASSIGNMENT INFORMATION] (4)
4,752,951 Method of providing location dependent person locator service 158 1985
4,878,238 Cordless telephone network 80 1987
5,020,094 Cordless telephone network 56 1989
5,341,414 Calling number verification service 129 1992

Patent Citation Ranking

Forward Cites

Patent Info (Count) # Cites Year
 
AT&T CORP. (34)
5,926,754 Directory assistance call processing systems and related methods 31 1995
5,970,133 Call branding system 16 1996
6,173,046 Customer group billing 9 1997
6,058,170 Telephone billing with summary information 36 1997
5,987,108 Telephone billing with customer-defined budgeting 57 1997
5,844,972 Customer profile based telephone card billing 49 1997
5,982,864 Telephone billing with customized billing information 73 1997
5,915,006 Telephone line aggregated billing 55 1997
6,125,173 Customer profile based customized messaging 32 1997
6,035,214 Laptop computer with integrated telephone 59 1998
6,115,602 Method and system for call screening 7 1998
6,169,891 Method and apparatus for billing of wireless telephone calls 84 1999
6,819,945 Wireless centrex feature activation/deactivation 24 1999
6,785,560 Speed calling in a wireless centrex system 18 1999
6,771,953 Wireless centrex call transfer 25 1999
6,745,025 Time-of-day call forwarding in a wireless centrex services system 17 1999
6,738,615 Wireless centrex caller ID 46 1999
6,711,401 Wireless centrex call return 16 1999
6,654,603 Call waiting in a wireless centrex system 4 1999
6,654,615 Wireless centrex services 34 1999
6,643,507 Wireless centrex automatic callback 14 1999
6,631,258 Busy call forwarding in a wireless centrex services system 8 1999
6,618,600 Distinctive ringing in a wireless centrex system 12 1999
6,606,493 Wireless centrex conference call deleting a party 5 1999
6,606,505 Wireless centrex call screen 6 1999
6,591,115 Wireless centrex call hold 10 1999
6,587,683 Unconditional call forwarding in a wireless centrex services system 21 1999
6,574,470 Programmable ring-call forwarding in a wireless centrex services system 40 1999
6,535,730 Wireless centrex conference call adding a party 33 1999
6,374,102 User proactive call handling 158 1999
6,226,366 Subscriber-initiated automated third party billing feature 13 2000
6,266,524 Method and system for call screening 4 2000
6,961,559 Distributed network voice messaging for wireless centrex telephony 129 2000
6,381,317 Subscriber-initiated automated third party billing feature 13 2001
 
AT&T INTELLECTUAL PROPERTY I, L.P. (9)
6,263,056 Calling-party-pays call processing for cellular and paging 20 1998
6,570,970 Calling-party-pays call processing for cellular and paging 4 2001
7,257,209 Calling-party-pays call processing for cellular and paging 4 2003
8,036,354 Calling-party-pays call processing for cellular and paging 0 2007
7,929,944 Method and system for enabling a mobile user to manage calls 0 2007
7,778,403 System and method for implementing and accessing call forwarding services 1 2007
8,116,437 Voice communications menu 0 2007
8,417,230 System and method for routing a call to a landline communication unit or a wireless communication unit 0 2008
8,059,808 System and method for implementing and accessing call forwarding services 0 2010
 
AT&T KNOWLEDGE VENTURES, L.P. (6)
6,208,854 System and method for routing a call to a called party's landline or wireless communication unit 143 1998
6,705,916 System and method for routing a call to a called party's landline or wireless communication unit 11 2001
6,954,524 System and method for implementing and accessing call forwarding services 31 2002
7,181,201 System and method for routing a call to a called party's landline or wireless communication unit 0 2004
7,454,197 System and method for routing a call to a landline communication unit or a wireless communication unit 1 2007
7,346,155 System and method for implementing and accessing call forwarding services 4 2007
 
COMMIL USA LLC (5)
6,430,395 Wireless private branch exchange (WPBX) and communicating between mobile units and base stations 157 2001
7,274,934 Wireless private branch exchange (WPBX) and communicating between mobile units and base stations 9 2002
7,231,212 Wireless private branch exchange (WPBX) and communicating between mobile units and base stations 3 2002
7,215,952 Wireless private branch exchange (WPBX) and communicating between mobile units and base stations 2 2002
7,107,057 Wireless private branch exchange (WPBX) and communicating between mobile units and base stations 10 2002
 
MCI COMMUNICATIONS CORPORATION (5)
6,453,037 Remote telecommunications system for automatic number identification screening 12 1996
5,774,531 Telecommunications system and method for automatic call processing according foregoing inbound and outbound calls to arbitrary delegates 8 1996
6,078,805 System and method for cellular reseller control of outbound calls from a mobile station 39 1996
5,940,755 System and method for wireless network of unlicensed personal communications service areas with local switch interfaces and enhanced customer features 28 1996
5,907,802 System and method for cellular reseller control of inbound calls to a mobile station 13 1996
 
SBC TECHNOLOGY RESOURCES, INC. (5)
6,088,433 System and method for forwarding call from disconnected telephone number to new telephone number 17 1998
6,304,641 System and method for forwarding call from disconnected telephone number to new telephone number 20 2000
6,442,259 System and method for forwarding call from disconnected telephone number to new telephone number 15 2001
6,718,028 System and method for forwarding call from disconnected telephone number to new telephone number 13 2002
7,206,398 System and method for forwarding call from disconnected telephone number to new telephone number 2 2004
 
VERIZON BUSINESS GLOBAL LLC (5)
8,380,840 Method for recording events in an IP network 0 2001
7,406,306 Method for billing in a telecommunications network 7 2001
7,945,592 XML based transaction detail records 0 2002
8,315,593 Method for billing in a telecommunications network 0 2008
8,161,080 XML based transaction detail records 0 2008
 
AT&T MOBILITY II LLC (4)
7,023,967 Method and apparatus for voice mail sharing between wired and wireless telephones 22 1997
6,308,067 Wireless communications system and method of operation for reducing fraud 5 2000
7,194,523 Method and apparatus for data communication utilizing the North American Terrestrial System 10 2004
8,250,221 Aircraft data communications services for users 1 2005
 
BELL ATLANTIC MOBILE, INC. (4)
6,405,028 Inetwork architecture for calling party pays wireless service 30 1999
6,546,238 Calling party pays system bypass 30 1999
6,397,055 Mobile to mobile call delivery for calling party pays wireless service 59 1999
6,556,818 Fixed calling party pays charges 16 2000
 
BELLSOUTH INTELLECTUAL PROPERTY CORPORATION (4)
6,697,469 Method and system for implementing calling-party-pays telecommunication services 18 1998
6,356,756 Method and system for routing calls to a wireless telecommunications services platform 51 1998
6,647,106 Privacy screening service with a bypass code 13 1999
7,266,190 System and method for managing communications 6 2002
 
SBC PROPERTIES, L.P. (4)
6,453,019 Method and system for canceling unwanted telephone calls 5 1999
6,765,994 Method and system for canceling unwanted telephone calls 1 2002
7,068,761 Method and system for canceling unwanted telephone calls 2 2004
7,076,045 System and method for implementing and accessing call forward services 11 2005
 
SIMPLEXITY, LLC C/O VERSA CAPITAL MANAGEMENT, INC. (4)
7,013,127 Systems and methods for employing "pay-as-you-go" telecommunication services 5 2003
7,318,098 Method and system for short message service (SMS) transactions for wireless devices 12 2003
7,313,106 Method of operating a virtual private wireless network implementing message delivery preferences of the user 4 2003
8,068,810 Systems and methods for monitoring “pay-as-you-go” telecommunication services 0 2005
 
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) (4)
6,101,382 Transfer of calling party identification in a mobile communication system 15 1997
6,259,906 Apparatus and method for indicating service subscription selection in a cellular communication system 7 1997
6,122,510 Method and apparatus for providing network-specific mobile services 76 1997
6,567,658 Announcing advertisements to users of a telecommunications system 15 2000
 
ALCATEL (3)
6,028,918 Telecommunication system, and switching means, and memory means, and method 2 1998
6,430,279 Method for the acceptance of calling charges for individual calls as well as telephone network and terminal unit 4 1999
6,658,246 System for and a method of controlling access to a service available via a telecommunications terminal connected to a telecommunications network 5 2000
 
DYNAMIC TECHNOLOGIES CORP. (3)
5,845,218 Disposable wireless telephone and method 54 1997
6,405,031 Wireless telephone system, telephone and method 3 1998
6,144,847 Wireless telephone with credited airtime 43 1999
 
FREETECH, L.L.C. (3)
6,285,749 System and method for providing universal telecommunications service and third party payer services 30 1998
6,584,183 System and method for providing sponsored of universal telecommunications service and third party payer services 10 2001
6,788,771 System and method for providing sponsored or universal telecommunications service and third party payer services 25 2002
 
RANDICE-LISA ALTSCHUL (3)
5,965,848 Disposable portable electronic devices and method of making 35 1997
6,061,580 Disposable wireless telephone and method for call-out only 82 1997
5,983,094 Wireless telephone with credited airtime and method 37 1997
 
XIUS HOLDING CORP. (3)
6,704,563 Systems and methods for prerating costs for a communication event 27 1999
7,187,928 Call delivery systems for roaming prepaid subscribers 3 1999
7,486,945 Systems and methods for prerating costs for a communication event 4 2004
 
ALCATEL LUCENT (2)
8,189,752 Per-session dynamic charging caps in communication networks 0 2007
8,126,124 Charging for long duration sessions in communication networks 0 2007
 
ALCATEL USA SOURCING, L.P. (2)
6,018,737 Universal personal telecommunications service for an advanced intelligent network 20 1997
6,353,663 Method and apparatus for screening telephone calls 81 1999
 
AT&T WIRELESS SERVICES, INC. (2)
6,810,257 Method and apparatus for providing partitioned telecommunication services 7 1997
7,177,939 Aircraft data communications services for users 16 2001
 
ERICSSON INC. (2)
5,873,034 Default long distance carrier selection within a visited public land mobile network 11 1996
6,108,318 System and method for data link synchronization 21 1997
 
LUCENT TECHNOLOGIES INC. (2)
6,876,738 Apparatus, method and system for intelligent tandeming of incoming calls to application nodes in telecommunication systems 1 2000
7,149,500 Charge-all mode for calls in telecommunication network 3 2003
 
NCR CORPORATION (2)
6,310,940 Personal computer interactive phone system 24 1999
6,990,321 Interactive phone system utilizing wireless channels 2 1999
 
TEKLA PEHR LLC (2)
7,092,385 Policy control and billing support for call transfer in a session initiation protocol (SIP) network 17 2002
7,860,800 Policy control and billing support for call transfer in a session initiation protocol (SIP) network 0 2010
 
ADVENT IP LLC (1)
6,453,030 System and method for roaming billing 5 2000
 
AMERICAN TELEPHONE AND TELEGRAPH COMPANY, AT&T BELL LABORATORIES (1)
7,242,754 System and method for implementing and accessing call forwarding services 7 2003
 
AT&T KNOWLEDGE VENTURES, B.P. (1)
7,227,940 System and method for implementing and accessing call forwarding services 8 2006
 
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY (1)
6,765,886 Call set-up and service invocation in telecommunications networks 0 1997
 
CALTON RESEARCH L.L.C. (1)
6,023,618 Method for improving charging criteria in a mobile telephone network 14 1997
 
CBT FLINT PARTNERS (1)
6,483,910 Method and apparatus for charging a fee to a party initiating a telephone call when the party is not on an authorization list associated with the called party 17 1998
 
CINGULAR WIRELESS II, LLC (1)
7,003,299 Method and apparatus for providing partitioned telecommunication services 2 2002
 
CISCO TECHNOLOGY, INC. (1)
7,372,955 System and method for accessing a wireless network from a handset connected to a public wiring network 4 2001
 
EIGHT ESEMAY DE L.L.C. (1)
6,115,600 Method for improving charging criteria in a mobile telephone network 16 1997
 
FIRST ORION CORP. (1)
8,311,204 Automatic complaint registration for violations of telephonic communication regulations with call rejection 0 2007
 
GLENAYRE ELECTRONICS, INC. (1)
6,173,157 Method of registering and controlling registration data for new and roaming pagers in a paging system 8 1997
 
GLOBAL CROSSING TELECOMMUNICATIONS, INC. (1)
5,867,566 Real-time billing system for a call processing system 56 1996
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (1)
5,787,360 Telecommunications systems 16 1996
 
IDT CORPORATION (1)
6,871,062 "Calling party pays" cellular and prepaid platforms for cellular calling systems 18 2001
 
INTELLECTUAL VENTURES I LLC (1)
6,345,181 Charging criteria for a call in a cellular mobile network 13 1998
 
INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
7,082,306 Apparatus and method for merging wireless telephone service with existing wired telephone equipment in a facility 3 2001
 
IPR LICENSING, INC. (1)
6,941,152 Wireless subscriber network registration system for configurable services 4 2001
 
KT CORPORATION (1)
6,757,371 Method for divisional billing and device thereof 33 2002
 
LG-ERICSSON CO., LTD. (1)
6,937,851 Method for processing authentication failed/authorization denied subscribers by intelligent network 1 2001
 
LOCUS TELECOMMUNICATIONS, INC. (1)
7,706,774 Control system for enabling use of wireless telephones 0 2006
 
NEUTRAL TANDEM, INC. (1)
8,102,988 Method and system for dynamically terminating wireless and wireline calls between carriers 3 2005
 
NOKIA CORPORATION (1)
7,925,762 Roaming support method and systems in UMTS 0 2000
 
NOKIA MOBILE PHONES LTD. (1)
5,826,191 Dual mode network call forwarding activation and deactivation 36 1996
 
NOKIA NETWORKS OY (1)
6,400,939 Method for limiting use of terminal equipments 7 1999
 
NOKIA SIEMENS NETWORKS GMBH & CO. KG (1)
6,850,756 Method of charging for telecommunications links within the context of call forwarding services 0 2002
 
PANTECH CO., LTD. (1)
RE43277 Method for constructing WVPN (Wireless Virtual Private Network) for CDMA 0 2006
 
QWEST COMMUNICATIONS INTERNATIONAL INC. (1)
6,014,377 System and method for an integrated wireline/wireless service using private branch exchange lines 77 1998
 
REBTEL NETWORKS AB (1)
8,374,168 Telephone communication 0 2007
 
SECURUS TECHNOLOGIES, INC. (1)
7,158,621 Pre-paid calling and voice messaging services for inmates 29 2002
 
SIMPLEXITY, LLC (1)
8,295,458 Systems and methods for monitoring “pay-as-you-go” telecommunication services 0 2011
 
SK TELECOM CO., LTD. (1)
8,085,906 Method, system and apparatus for providing alternative multimedia ring back tone substitute service by using intelligent network 1 2006
 
SYMBOL TECHNOLOGIES, INC. (1)
6,275,477 Campus area pager system 19 1996
 
TECNOMEN OY (1)
5,835,584 Method and apparatus for implementing services in telephone networks provided with co-channel signaling 26 1995
 
UNWIRED PLANET, LLC (1)
5,812,950 Cellular telephone system having prioritized greetings for predefined services to a subscriber 52 1995
 
USA TELECOMMUNICATIONS SERVICES, INC. (1)
6,064,875 Wireless communications system and method of operation for reducing fraud 69 1997
 
VERIZON LABORATORIES INC. (1)
7,155,204 System and method for billing calls over a wireless network 2 2001
 
VERIZON SERVICES CORP. (1)
5,729,598 Telephone network with telecommuting features 30 1996
 
XIRCOM WIRELESS, INC. (1)
6,580,906 Authentication and security in wireless communication system 33 1997