https://www.overseadia.com/en-US/detail/93e37ab5d8f84d4578f6c18b5728497d NAR8108-8164THC Yishi Model 19 is a standalone phone recorder designed to record audio in WAV format. With 68-4 ports/lines to choose from, this recorder can be used for Analog/PSTN/Landline/PBX Ext and Intercom/Radio/FCT voice lines. The 5-inch touch screen display makes it easy to operate and navigate through the features. This recorder comes with 1TB HDD in the default price, but you can choose from 2TB, 3TB, 4TB, and 8TB options. Customizable software and hardware, plus voice mail/answering machine and call/voice announcement features, make this recorder a perfect fit for businesses of all sizes.