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| Application No. | Application Title | Issue Date |
| 20090129557 | METHOD AND SYSTEM FOR PERFORMING SIP LOOPBACK IN COMMUNICATION DEVICES A system operator provisions, or loads, a user's communication device, such as a cable modem, with multiple sets of loopback mode parameters that each facilitate a loopback test, and associates each set with multiple loopback numbers, or variable values. The loopback va... | 05/21/2009 |
| 20060251221 | Method and arrangement for loop test of a disturbed line The invention refers to single-ended test of a loop (2, 3). A test device (TD1) is connected to a remote device (3) via a line (2). The remote device is powered on and transmits intermittently handshake signals (HS1), which can disturb... | 11/09/2006 |
| 20050220275 | Global digital measurement device A digital wideband node (DWN) (28, 48) is coupled to a remote terminal (RT) (22, 42) that in turn is coupled to a subscriber's telephone line (26, 46). The DWN (28, 48) is configured to (1) pass a subscriber's telephone number signal directly... | 10/06/2005 |
| 20050147210 | End-to-end network testing The invention includes a system and a method for testing a communication network. The inventive method transmits a first signal from a first point to a second point of the communication network, where the first and the second points are remotely located. The inventive m... | 07/07/2005 |
| 20050141673 | Fault detection method and apparatus for telephone lines A method and apparatus for detecting faults on a telephone line, the method comprising: comparing measured characteristics of the line with a model, said model modeling expected characteristics of the telephone line; and in response to the comparison, generating a fault... | 06/30/2005 |
