• 6 call appearances.
  
• 15 feature buttons includes: drop/test, conf/ring, hold, transfer, release, log in, mute, and volume control.
  
• 2-line, 40-character supertwist LCD with multi-line scrolling.
  
• 2 headset jacks.
  
• Connects to external recording device via built-in Recorder Interface Module (RIM).
  
• Adjunct jack for connecting: adjunct speakerphone, 500A1 headset adapter, or 507A adapter.
  
• Works with 2-wire circuit packs.
  
• Callmaster Cradle Kit or headset is NOT included
  

CALLMASTER IV REQUIREMENTS

• Lucent / Avaya Avaya ECS Family: System 75, G1, or G3.
  
• TN2224 2-wire/ 24-port digital line card; or
  
• TN2181 2-wire/16-Port digital line card; or
  

Availability: In stock - Normally ships within 24 hours.
Warranty: One year.

Callmaster IV, with RIM, White, Used 105210