Analog wired Headset

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There's a four-ring 2.5mm stereo jack which provides connectivity to old-fashioned wired headsets.

The headsets used by Motorola smartphones (A780,A1200, ...) and the V-360 have a compatible configuration.

ring
1(base): GND
2: right out
3: left out
4(tip): mic + HOLD-button(press:short to GND)

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There's a four-ring 2.5mm stereo jack which provides connectivity to old-fashioned wired headsets.

The headsets used by Motorola smartphones (A780,A1200, ...) and the V-360 have a compatible configuration.

ring
1(base): GND
2: right out
3: left out
4(tip): mic + HOLD-button(press:short to GND)