See also:

General Information
This device complies with FCC rules Part 15 and Industry Canada RSS-210. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device m ...

General Information
The Sentry Key system complies with FCC rules Part 15 and with RSS-210 of Industry Canada. Operation is subject to the following conditions: • This device may not cause harmful interference. • ...

Conference Call
When two calls are in progress (one active and one on hold), press and hold the button until you hear a double beep indicating that the two calls have been joined into one conference call. ...