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Call recording hardware, or a telephone recorder, is hardware that can be used to record telephone conversations. Call recording hardware is most often used by law enforcement, lawyers, journalist, and call centers to record phone transaction with customers. == History == ''Law enforcement'' professionals began using hardware to record telephone calls in the 1890s.〔Telephone tapping#History〕 This required physical access to the lines over which calls were carried. PBX based call-recording hardware is sold by PBX vendors and third parties. This hardware is attached to the PBX. It can be configured to record all calls or some calls, either randomly or on demand. ''Businesses'', particularly call centers, use call recording for training, quality management, and legal compliance. ''Consumer'' call-recording hardware was introduced in the 1970s, along with the first consumer-grade answering machines.〔( The History of Answering Machines )〕 These devices were connected to the same physical line as one of the telephones involved in the conversation. While the more sophisticated devices were automatically activated when a call was made, most were manual. Modern Call recorders are usually Windows Server 2003 / 2008 based servers utilizing specific Dialogic (Intel) cards that are designed for TDM T1 and ISDN-PRI trunks for trunk side recording, and analog and digital station side cards for recording from stations. Often client software is required by the user computer for both screen recording and to trigger voice recording. You can Also record SIP trunks using port spans installed on specially configured network ports that do not have IP addresses and are used as sniffers for SIP traffic, and can be configured to record all or only specific calls. Most use informix and SQL databases and may use Integration Servers and IP Analyzers as well, sometimes clustered on one machine. Modern recorders include Digital Loggers, Verint, Witness, NICE, Call Copy, VersaDial, SIP Print, and many others. Securelogix voice firewalls can function as recorders too 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Call-recording hardware」の詳細全文を読む スポンサード リンク
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