A telephone that transmits its signal via a geostationary communications satellite.
Example sentencesExamples
Chris apologizes for the lack of updates over the past few days, but he's been having some technical difficulties with the satphone he's using.
By Monday June 2 his condition had deteriorated and Rob sought medical advice using satphone.
I come back at night, set up the satphone, write a little more and try to transmit.
I had tried to transmit with this laptop and my satphone for about an hour in the afternoon, but for the first time, it was impossible to get a connection.
I never imagined I'd need a satphone to make a phone call from central London.