off-deck adj. (said of software or digital media) coming from a remote server or system. Editorial Note: A deck is the software and information that ships with or is installed on a mobile phone, personal digital assistant, or other small wireless device. (source: Double-Tongued Dictionary)
Further reading
When Tony from Fort Worth, Texas, ordered chicken fajitas at a restaurant, the server replied Perfect! He’s pretty confident that his order was hardly outstanding, much less perfect. He’s noticed that the response Perfect! doesn’t...
It’s hard to imagine now, but there was a time when people disagreed over the best word to use when answering the phone. Alexander Graham Bell suggested answering with ahoy! but Thomas Edison was partial to hello! A fascinating new book about...
This is a US definition, in Europe we refer to off-portal and on-portal