UpBright NEW Global 48V AC / DC Adapter For Aastra 6700 Series 673xi 6755i 6739i CT IP Phone 48VDC Power Supply Cord Cable PS Battery Charger Mains PSU World Wide Input Voltage 100-240VAC 50/60Hz OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection) Tested Units. In Great Working Condition. UpBright 30 days money back guarantee. 1 full year service warranty. UpBright NEW Global 48V AC / DC Adapter For Aastra 6700 Series 673xi 6755i 6739i CT IP Phone 48VDC Power Supply Cord Cable PS Battery Charger Mains PSU