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For further information on changing hardware configurations, contact Cus¬
tomer Service at 1-800-922-HELP (4357) or the SECTEL Service Center
in Phoenix, Arizona (602) 437-2822.
Key Switching Unit/Terminal Ringer Control (KSU)
In the KSU position, the telephone network controls which line rings on
each incoming call. In the terminal position, only line 1will ring. However,
all lines are available for incoming and outgoing calls. The option is pro¬
vided only on Multiline models.
To convert aMultiline telephone for use on aSingleline telephone network
use the terminal position. Amultiline to singleline adapter must also be
installed between the telephone line and the SECTEL 1500 terminal.
3 - 2 5
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