i2021 ISDN Teleset
The first three programmable keys should be lit. These three keys are the default CA keys.
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NOTE: The first three CA keys lit is default. If the first three CA keys are not lit, or there is a DN displayed, the Teleset is not in the default condition.
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In our example, we will enter DN
To enter the first DN, press Change, and enter the first DN. Enter the DN in a
After the DN has been entered, press the Bearer softkey until the Bearer Service of Speech is displayed.
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