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Troubleshooting solutions, Why is my handset not working, Why is my speakerphone not working – Aastra Telecom 6739I User Manual

Page 25: Why is my display blank, Can i turn the backlight for the screen on and off, Why does the telephone wobble

Troubleshooting solutions, Why is my handset not working, Why is my speakerphone not working | Why is my display blank, Can i turn the backlight for the screen on and off, Why does the telephone wobble | Aastra Telecom 6739I User Manual | Page 25 / 32 Troubleshooting solutions, Why is my handset not working, Why is my speakerphone not working | Why is my display blank, Can i turn the backlight for the screen on and off, Why does the telephone wobble | Aastra Telecom 6739I User Manual | Page 25 / 32