See also:

Regulatory Information
FCC Regulatory information CAUTION: To maintain compliance with FCCs RF exposure guidelines, use only the supplied antenna. Unauthorized antenna, modification, or attachments could damage th ...

Call volume
Adjusting the incoming or outgoing call volume may improve clarity if reception between callers is unclear. - Incoming calladjusting this setting allows you to hear a difference in volume. - ...

Explanation of maintenance items
Additional information on the following items with “*” is found later in this section. ...