2. Battery charge level is too low (recharge battery).3. Your calling plan is expired, depleted or has reached its pre-set limit.Note: Emergency (911) Service is still available.Safety TipsFollowing the suggestions in this section will help ensure safeand efficient operation of your Panasonic phone.This Model Phone Meets The Government’s RequirementsFor Exposure To Radio Waves.Your wireless phone is a radio transmitter and receiver. It isdesigned and manufactured not to exceed the emission limitsfor exposure to radiofrequency (RF) energy set by the FederalCommunications Commission of the U.S. Government. Theselimits are part of comprehensive guidelines and establishpermitted levels of RF energy for the general population. Theguidelines are based on standards that were developed byrequired to reach the network. In general, the closer you are toa wireless base station antenna, the lower the power output.Before a phone model is available for sale to the public, it mustbe tested and certified to the FCC that it does not exceed thelimit established by the government-adopted requirement forsafe exposure. The tests are performed in positions andlocations (e.g., at the ear and worn on the body) as requiredby the FCC for each model. The highest SAR value for thismodel phone when tested for use at the ear is 0.64 W/kg andwhen worn on the body, as described in this user guide, is0.77 W/kg. (Body-worn measurements differ among phonemodels, depending upon available accessories and FCCrequirements). While there may be differences between theSAR levels of various phones and at various positions, they allmeet the government requirement for safe exposure.The FCC has granted an Equipment Authorization for thismodel phone with all reported SAR levels evaluated as in