Panasonic DBS 824 Manual page 341

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SLT Receiving Volume
Digital
Software Version CPC-S and CPC-M, Version 1 0 and higher
Address FF3 (ExtPort)# 39# (0 or l)#
Description
The receiver (hearing) volume of the handset on a digital single-line
telephone can be set to "normal" or "loud '
The "loud" setting gives a +6 dB gain over the ' normal" setting
(approximately twice as loud)
Programming
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3-44
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FF3 (l-16 or l-24)# 39# (0 or l)#
Extension Port
CPC-S 1-16
CPC-M l-24
DBS 824-10-400
l=Loud
Issued 3/l/95
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