VTech SN6127_-2 Abridged manual - Manual (Page 84)

Appendix
78
Operating range
This cordless telephone operates with the maximum power
allowed by the Federal Communications Commission (FCC).
Even so, this handset and telephone base can communicate
over only a certain distance - which can vary with the
locations of the telephone base and handset, the weather,
and the layout of your home or office.
When the handset is out of range, the handset displays
Out of range OR Base no power.
If there is a call while the handset is out of range, it may not
ring, or if it does ring, the call may not connect well when you
press . Move closer to the telephone base, then press
to answer the call.
If the handset moves out of range during a telephone
conversation, there may be interference. To improve
reception, move closer to the telephone base.
ECO mode
This power conserving technology reduces power
consumption for optimal battery performance. The ECO mode
activates automatically whenever the handset is synchronized
with the telephone base.