I have a door opening controller NT8B79FB. I would like to change the default extension at which it rings when someone presses the button on the intercom, but don't know how. Does anyone know how or does anyone have any documentation on this product. It is connected to a Norstar Meridian MICS system with a Callpilot 150.
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Door opening Controller NT8B79FB
- Thread starter rongiul
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