We have a lot of customers who are using power inverters to power their cordless phones in their RVs. The reason is they find the power in RV parks can be very noisy. The extra noise and voltage fluctuations in the power can cause added interference in their cordless phones.
Their solution has been to add a 300 Watt True Sine wave inverter to always power their cordless phones in their RVs. This way the cordless phone has clean reliable power from their sine wave power inverter.
They basically have taken their cordless phone off grid and used the RV's 12 volt power to power the inverter to create clean reliable Sine wave AC power. Some customers even use the power inverter to run their wireless networks and cellular gateways as well.
More articles to come on the use and inverter powering of Cellular Gateways and Wireless Routers in RVs.

