Cortelco Conference Telephone

Features include:

• Full-Duplex Speaker Phone
• On/Off with LED
• Mute with LED
• Ringer - Hi/Lo/Off
• Seven-Step Volume Control
• Redial
• Flash
• Tone/Pulse
• External Microphone (Optional) - Provides Two-Color LED (In-Use & Mute Indication)
• One External Microphone Connection (for Optional Microphone)

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