Historically Telephone System Pbx
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The largest size of picture 4000×3000 pixels, you can download with JPEG format. This photo was shooting by Panasonic DMC-Fz200 camera with shooting mode 15.5mm · ƒ/2.8 · 1/15s · ISO 400. Stored in the category "Computer/Communication" and our photographer was tagged: Telephone System, Historically, Pbx.
A great image you can use for free for many different purposes: commercial products, printing, wallpaper, publishing ... etc. License use Creative Commons Zero - CC0. A referral link to Max Pixel (not required).
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