Cisco 7900 Series IP Phones — CP-7911G & CP-7906G Office Telephone System

Tested units in great working condition. These Cisco 7900 Series IP phones (CP-7911G and CP-7906G) provide low interference and noise, advanced technology, and dependable, high-efficiency performance. Electrical specifications and protection: 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). Warranty and returns: UpBright 30 days money back guarantee. 1 full year service warranty. Battery information: Rechargeable batteries don't last forever — the average battery last 1 to 3 years. If the battery is old or dead, it will not accept a charge; this is not a charger's problem. If you are uncertain whether the battery or the charger is at fault, you must have a volt meter in order to tell whether or not a charger is working.