This sophisticated single line business telephone provides 40dB amplification. This ST140 business phone digitally adjusts frequency-specific volumes so that any user, especially those in noisy environments, can comfortably hear a caller's voice. The conference
grade speaker phone restores low-frequencies sounds to deliver a crisp acoustic experience only found in high end phones. Huge 7.4", 3 line display is easy to read, even from a distance. Phone also has a visual caller ID, conference-grade amplified speakerphone, RJ22 and 2.5mm headset jacks with built in amplification, a 99 name directory, 7 one-touch memory dials, and one touch call forwarding.
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