Lightning and Surge Protection:
Lightning and surge protection for cordless phones, desk phones, multi function units and faxes.
Lightning and surge protection protects against surges on mains and telephone line. Withstands surge currents up to 6500 Amps.
A lightning Surge protection device provides total protection-Not always, truth is a common surge protector with protect your devices against voltage spikes and surges, however it has little chance against a violent burst of current from a nearby lightning strike. Direct lightning current is just way too big for a small little electronic device.
BUT this is not to say you shouldnt get a surge protection device as these definitely help with load shedding spikes as well as distant lightning strikes.
Ultimately the cheapest and easiest although not always possible protection is to simply disconnect the device from its power source as well as the telephone line side.