Bosch Integral TS13 Operating Instructions Manual page 10

Familiarize yourself with your phone
Special features of your telephone A
Connecting additional ringing tones (second alarm)
You can equip your telephone with an additional ringing tone. You can then, for ex-
ample, receive a signal in the neighbouring room when your telephone rings.
The second alarm is connected to the telephone's AEI interface via a switch con-
tact. Please contact BOSCH Telecom as required.
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