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What is "system-level" recording and why do I want it?

March 30, 2009

By TMCnet Special Guest

System-level recording means capturing calls at the network foundation, rather than from the PBX (News - Alert). The advent of SIP and RTP protocols means the telephone, the handset, becomes intelligent and the PBX becomes a router of traffic. Control of the call is at the handset or softphone. The telephone system is now a part of the TCP/IP network.
VoIP telephony means telephone traffic at the system level is a part of the data network, since telephone traffic is now data. System-level recording means recording calls from the data network, and not from the PBX. With VoIP, the PBX could fail, but the telephones could still setup and tear down and transmit telephone calls. If your recording device was set up to work with the PBX, and the PBX failed, your call recording would fail. If you did system-level recording, and the PBX failed, you would still be recording calls, because you would be listening to the network – the system – and capturing those calls. In addition, recording at the system level means less processing interruption at either the PBX or the handset since the “work” to make those calls has already happened, and system level recording has no impact to the transmission or receipt of those calls.

Erik Linask (News - Alert) is Group Managing Editor of TMCnet, which brings news and compelling feature articles, podcasts, and videos to nearly 3,000,000 visitors each month. To see more of his articles, please visit his columnist page.

Edited by Erik Linask

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