We are looking at deploying many Cisco 9971 IP phones. On the specs for the 9971 phone it says it uses class 3 power, but this usually reduced when CDP is enabled. Does anyone know what the actually power usage (xx.x watts) of a 9971 IP phone? We might also need side cars for additional functions too. Does anyone also know what the power usage might be for class 4 power (Cisco 9971 IP phone with side car)? I will also need the same information for the Cisco 8941 phone too.