发明名称 |
Method and apparatus for providing ringing timeout disconnect supervision in remote telephone extensions using voice over packet-data-network systems (VOPS) |
摘要 |
A Multiservice Access Concentrator (MAC) provides a time limit for a first ringing voltage signal in response to an attempted call. The call is attempted via a voice over packet-data-network system (VOPS), wherein the VOPS comprises voice over Internet Protocol (IP), voice over Frame Relay, voice over Asynchronous Transfer Mode (ATM), and voice over High-level Data Link Control (HDLC) network systems. Generation of the first ringing voltage signal is terminated upon expiration of the time limit. A control message is transmitted to terminate the attempted call, wherein the control message is transmitted via the VOPS. |
申请公布号 |
US8848695(B2) |
申请公布日期 |
2014.09.30 |
申请号 |
US201213405596 |
申请日期 |
2012.02.27 |
申请人 |
Cisco Technology, Inc. |
发明人 |
Chung Wing-Kuen;Hwang Cherng-Daw;Tasker Michael Edric |
分类号 |
H04L12/66;H03M3/02;H04L12/46;H04M7/00 |
主分类号 |
H04L12/66 |
代理机构 |
Schwegman Lundberg & Woessner, P.A. |
代理人 |
Schwegman Lundberg & Woessner, P.A. |
主权项 |
1. An apparatus to route integrated traffic comprising data, voice, and video traffic, the apparatus comprising:
a resource manager module configured to:
receive a request for a digital signal processor (DSP) channel to process digitized voice traffic;determine whether a DSP channel of a first DSP device is available to process the digitized voice traffic; andbased on a determination that the DSP channel of the first DSP device is available, assign the DSP channel of the first DSP device to process the digitized voice traffic; a first resource pool configured to logically store available DSP devices, each DSP device including one or more channels to process the digitized voice traffic; a second resource pool configured to logically store available DSP channels; and a third resource pool configured to logically store DSP channels assigned to process digitized voice traffic, wherein based on a determination that the DSP channel of the first DSP device is not available, the resource manager module is further configured to:
remove the second DSP device from the first resource pool,fragment channels of a second DSP device into one or more unassigned DSP channels;assign a channel of the one or more unassigned DSP channels to process the digitized voice traffic; andplace the assigned channel in the third resource pool and the unassigned fragmented channels in the second resource pool, wherein the resource manager module is further configured to:
release the assigned DSP channel upon completion of processing of the digitized voice traffic;join the released DSP channel with one or more adjacent DSP channels;determine whether the joined DSP channels form a DSP device;based on a determination that the joined DSP channels form the DSP device, place the DSP device in the first resource pool; andbased on a determination that the joined DSP channels do not form the DSP device, place the released DSP channel and the one or more adjacent DSP channels in the second resource pool. |
地址 |
San Jose CA US |