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| Number | Title | Issue Date |
| 7298828 | Automated telephone line test apparatus with intelligent diagnostic function A portable, automated telephone line test device includes a test module which applies test signals to a telephone line to be tested and detects electrical characteristics of the telephone line, and a user interface module. The user interface module includes a microp... | 11/20/2007 |
| 7184532 | Dynamic ringback services A method for providing dynamic ringback services can include receiving a connection signal from an originating device and determining a receiving device specified by the connection signal. The method can access receiving device specific information and can dynamical... | 02/27/2007 |
| 7068757 | Apparatus and method for automated testing of the quality of voice communications over data networks A slave test unit is used in conjunction with a remote test unit to test voice signal quality parameters, such as clarity, delay and echo. A remote master test unit, or a remote slave test unit, controls the slave test unit via commands sent by the remote test unit ... | 06/27/2006 |
| 6980633 | Enhanced call-waiting with caller identification method and apparatus using notch filters An enhanced telephony call waiting feature and apparatus is provided wherein identifying information related to a third party wishing to converse with a first party already communicating with a second party is provided to the first party during a mute condition in a... | 12/27/2005 |
| 6950498 | External detection of optional telephone services A method to determine telephone services enabled on a telephone line that is registered to receive services from an online service provider includes determining whether a telephone line registered to receive services from an online service provider is occupied. One ... | 09/27/2005 |
| 6628756 | System and method for telephone number verification and identification A testing environment and a method for telephone number identification and/or verification. The method identifies a telephone number associated with a tested telephone line by: (a) operatively connecting a test equipment to the tested telephone line; (b) ... | 09/30/2003 |
| 6614880 | Automated telephone line test apparatus with intelligent diagnostic function A portable, automated telephone line test device includes a test module which applies test signals to a telephone line to be tested and detects electrical characteristics of the telephone line, and a user interface module. The user interface module includ... | 09/02/2003 |
| 6453153 | Employing customer premises equipment in communications network maintenance The present invention customizes a network connection to customer premises equipment using a calibration signal. A network signal processor emits a tag signal indicating that a signal processing platform is in use. Customer premises equipment (CPE) issues... | 09/17/2002 |
| 6385299 | Line testing in a telecommunications network A centralized test apparatus is provided for a telecommunications network which includes local switches and a core network. Each local switch is connected through terminating lines to terminating equipment such as telephone handsets. The test apparatus en... | 05/07/2002 |
| 6049591 | Grievance call processing system A grievance call processing system capable of automatically shifting a grievance call reception state to a test state. An electronic switchboard notifies the telephone number information of a subscriber to a workstation, which stores and displays the tele... | 04/11/2000 |
| 6005921 | Telephone ringback test device and method A device and method for testing a telephone circuit in which a caller takes advantage of available caller identification information to complete a ringback test without resort to potentially costly and overused toll trunks. The ringback test device is acc... | 12/21/1999 |
| 5974363 | Self-testing of smart line cards Automatic testing a group of line circuits on a smart line card served by a central switch over a PCM bus is localized by using the microprocessor/DSP that provides codec functions for the group of line circuits. Tests such as DC overhead that are not per... | 10/26/1999 |
| 5937034 | Method for testing call waiting, caller ID functionality of telephone line The control software of a central office-installed ringback test device is augmented to allow a craftsperson to test the operability of a caller identification, call-waiting (CIDCW) class of service of a line, without participation of another technician a... | 08/10/1999 |
| 5937032 | Testing method and apparatus for verifying correct connection of curcuit elements A method and apparatus for testing for correct connection together of circuit elements in a circuit formed of a plurality of redundant circuit portions. A coded signal is generated at a first circuit element and transmitted upon a signal path believed to ... | 08/10/1999 |
| 5857011 | Multi-port caller ID-based telephone ringback test device A multi-ported, caller ID-based test unit is installable in the central office of a public switched telephone network. The test unit is capable of determining the telephone number, subscriber name and various other information associated with the subscrib... | 01/05/1999 |
| 5828728 | Telecommunications network Testing of pre-ringing signalling in a telecommunications network at customer's premises, for example, signalling to activate a caller display unit may be effected remotely. By establishing a test call through the network by way of a dial-back loop to a t... | 10/27/1998 |
| 4459436 | Programmable tester for measuring network characteristics A mechanized system distributing the access, test and communication functions to the point of testing, typically the centralized switching facility serving the telephone loops and equipment to be tested. Computer (200) stores information about each subscr... | 07/10/1984 |
