I had to buy this because the cable I had didn't have all four wires. So it works great with business phones like Panasonic. Also, they either work or they don't, so the phone cord is as close to perfect as you're likely to find.
INSWAN INS 2 Dual Mode Supplemental Conferencing
3 Review
π CZUR Assistive Cover 13.14-inch: Splash Resistant, Adjustable Hook & Loop, PVC Material for CZUR Book Scanner - Office & Home - Black
4 Review
π· CZUR Shine800-Pro: High-Speed Document Camera for Mac and Windows with OCR Function
10 Review
JOYUSING 8MP Document Camera for Teachers - VGA/HDMI/USB Three Mode, Mac, Windows, Chrome Compatible - Ideal for Online Teaching, Distance Learning, and Web Conferencing
3 Review