The company has now successfully completed full capability tests for phone calls, instant message, voice recording and image transfers through its 3 Diamonds commercial demonstration nano-satellites.
This transmission operation has been completed on multiple testing runs over the past few days, using Sky and Space's proprietary smartphone application.
Sky and Space has therefore delivered a world first - as this is the first time that a voice call has been facilitated by nano-satellites and represents a breakthrough for the company and the telecoms and satellite industries.
Until recently, nano-satellites have been predominantly used for earth observation and imagery but with advancements in miniature space technology their capabilities have become increasingly sophisticated in recent years.
Sky and Space is the first company to successfully use narrowband connectivity provided by nano-satellites to deliver a voice call.