Panasonic KX-tg2740s Operating Instructions Manual page 64

The base unit will ring for 'i minute.
o%o stop pagirIcy, prc?ss (m.
handset.
can switch to the speaker by pressing
lo switch back "to the
mceiver, press
uThe destination handse'l will ring for 1 minute.
To end the interc~~~~ press
or place the
handset on the base unit or the c~~~rg~r~
Off
oo-- 00-50
4