Longer range, longer talk time and easier to use than Siemens GigaSet. Do it for your business, and for fun. Great stuff, fast delivery, nice people. There's a very good chance, that the trouble will go away, without paying a penny for repairs. This also works for computers, cordless phones, appliances, calculators, even cars.
Microprocessors can get confused, and like human brains, they often work better after a rest.
If the malfunctioning machine uses batteries instead of AC, pop them out for a little while. In a car, carefully disconnect a battery cable. MNM Multi-mile cordless phone. Smaller, lighter, stronger than first generation SN-900 . More features, including headset operation, NiMH battery.