Panasonic KX-TS105W Operating Instructions Manual page 26

" Troubleshooting
Problem
Previously programmed
information is erased.
If you cannot solve your
problem
26
Remedy
≥If the batteries installed in the unit
expire, programmed information may
be erased. After the batteries are
replaced, reprogram if necessary.
≥Call our customer call center at
1-800-211-PANA(7262).
≥Panasonic's e-mail address for customer
inquiries:
consumerproducts@panasonic.com
for customers in the USA or Puerto Rico
ONLY