AT&T AT3101 - Manual (Page 29)

Appendix
26
FCC Part 15
To ensure safety of users, the FCC has established
criteria for the amount of radio frequency energy that
can be safely absorbed by a user or bystander according
to the intended usage of the product. This product has
been tested and found to comply with the FCC criteria.
The handset may be safely held against the ear of the
user. The telephone base shall be installed and used
such that parts of the user’s body other than the hands
are maintained at a distance of approximately 20 cm (8
inches) or more. If you choose to use a clipping device,
please make sure to only use the supplied AT&T belt clip.
This Class B digital apparatus complies with Canadian
ICES-003.