W91590 SERIES 24-MEMORY TONE/PULSE SWITCHABLE DIALER WITH HANDFREE, HOLD AND LOCK FUNCTIONS GENERAL DESCRIPTION The W91590 series dialers Si-gate CMOS IC tone/pulse switchable dialers with a 24-channel automatic dialing memory, including a 16-digit × 3 emergency dialing memory, a 16-digit × 20 channel repertory memory that provides one-touch and three-touch dialing, and a 32-digit mercury memory.
These dialers also provide flash, clear, hold, and one-key redial functions.
FEATURES • DTMF/Pulse switchable dialer • 32-digit LNB (last number buffer) memory (both tone and pulse mode) • 32-digit mercury memory (tone/pulse mode) • 16-digit × 3 one-touch direct repertory memory (tone/pulse mode...

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