Uniden EXLA8950 Owner's Manual page 32

Setting ring time switch
The ring time /toll saver switch
allows you to set the number of
rings the caller hears before the
answering system plays your
outgoing message. You can set
RING TIME
the switch to answer after two
2/4/TS
rings or after four rings.
In the TS (Toll Saver) position, the answering system picks up after
two rings if you have new messages, and after four rings if there are
none. This way, if you call long distance to check your messages,
you can hang up after third ring to avoid billing charges.
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