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How to Use ATA's R Key?
Dec 11, 2020
1.Login web GUI,go into “FXS1-->Preferences-->Feature Code”page,Enable R Key Conference Code.
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2. R key function key setting,R key range R0 ~ R9.
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R key Instructions: R (plug spring button) + number. For example, if the call hold key is set to R2, press the spring loaded button + number 2 to hold the call hold. If the phone has R key, you can use R key+number2.

Plug spring: phone microphone pressure on-hook button, the key is below the spring.