Add up to a total of four wireless handsets to your existing Aastra 480i CT or Aastra 6757i (57i CT) IP phone.

Cordless Handset Specifications

• Physical
  • 13.7 cm L x 4.6 cm W x 1.9cm H (5.4''L x 1.8''W x 0.8''H)
  • 133 g (4.7 oz.)
• Power
  • AC wall adapter for charging stand
  • Nickel Metal Hydride battery with 4 day standby time, 4 hour talktime
• Handset / Headset
  • One handset included; expandable up to 4 handsets
  • 2.4 GHz Frequency Hopped Spread Spectrum (FHSS)
  • Warehouse coverage up to 300,000 sq. feet
  • Vibration alerter
  • Headset compatible
• Display
  • Large 5 lines backlit display
• Feature Keys
  • 2 softkeys for tight integration to the 480i CT / 57i CT base features
  • 4 predefined hard keys (Mute, Redial, Function, Menu)
  • Programmable function key supports up to 14 functions