System and method of testing voice signals in a telecommunication system
US6504905B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2201/40
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system and method of testing voice signals in a telecommunication system, such as a voice messaging system (VMS), are provided. A test signal is generated to elicit a response from the telecommunication system, and a voice signal produced by the telecommunication system in response to the test signal is detected. To evaluate the detected voice signal, the system accesses stored reference phrases, where one or more designated reference phrases can be combined to form an expected voice signal. The detected voice signal is compared with at least one designated reference phrase to determine if the detected voice signal substantially corresponds to the expected voice signal. In a preferred embodiment, the voice signal and reference phrases are divided into component frames of substantially equal time durations, then compared frame by frame to determine if the detected voice signal and the expected voice signal substantially correspond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.