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Dual coded, 24-port analog line that performs all the functions of the
TN746B, 16-port analog line circuit pack Each port supports 1 voice
terminal such as 500 and 2500 terminals Supports on-premises wiring
with either touch-tone or rotary dialing and with or without the LED
and neon message waiting indicators Supports off-premises wiring with
either DTMF or rotary dialing, but LED or neon message waiting
indicators are not supported off-premises
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