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Manual is confusing in relation to setting up correct recording mode. In some modes only certain options are available. A screen by screen menu addition would have been helpful. Side slider has no click, so it’s difficult to know if you’re in phone mode or source mode, and how these affect being in Line mode or Handset mode. Mine didn’t work properly. The device kept recording even after putting the phone down and this prevented other callers from calling as it just said line busy. The announcement.wav file is not on the website and I still do not have a response to my email weeks later. I created a file of my own but it didn’t work. The manual says it may not work on all systems - convenient. Very disappointed. Resetting time had 2010 as default, which may reveal how old this technology is.
Works great with my home phone (analog). Most home phones are analog I believe even if they have digital display or answering machine. It also supposed to work with digital (mostly business) and IP phones. Though connection method differs. For analog phones telephone line from your wall goes to TR600 then out to the phone. For business phones and IP phones you supposed to connect the handset to the TR600. All the instructions are provided. You can also download PDF document and software for your computer. they provide 8GB SD card which is plenty for this purpose. You can also use it to record a voice memo. Supposed to include 3 AAA batteries but I did not get it. Oh, well. I had it for about a month and and a half and I am happy with it for now.
I have received this device and connected with a Cordless phone, and it didn't work. This device might be working good with landline with hardwired or IP Phone, that I don't know yet. I have contacted customer support and have not received any response even after waiting for more than a week. I will wait for one more week and will return the device.