Investment in super-fast broadband could create thousands of jobs and bring millions of pounds into the Scottish economy in the next 15 years, according to a report.
Investment by BT in the service has already made the technology available to more than 270,000 Scottish homes and businesses, and the company expects the number to rise to around 836,000 by spring 2013.
The report, by Regeneris Consulting, predicts that the economy of a typical UK town could receive a £143 million boost and 225 new jobs through super-fast broadband. For cities, the report suggests around 430 new jobs and 320 start-up business could be created with a £296 million boost.
The increased connection speed could also lead to a big surge in flexible and home working.
BT said it has invested £2.5 billion in rolling out super-fast broadband across the UK so far.
Brendan Dick, director of BT Scotland, said: "BT's plans to roll out next generation broadband across Scotland are already well under way. But we want to go further and would very much welcome the opportunity to have an even bigger impact on the regional economy by working with the public sector to make the high-speed technology available in more challenging areas.
"It is vital that we continue to grow and help our customers, stakeholders and employees to thrive as we work together to create a more prosperous Scotland."
The telecommunications company commissioned Regeneris to carry out a major study to examine the its economic impact in the UK.
Stephen Nicol, managing director of Regeneris Consulting, said: "The interesting thing about BT is that it provides a genuinely national impact. It benefits every town or city across the UK. It is also one of the single most important businesses for the UK economy. As a result of its full economic impact, BT supports £1 in every £70 of wealth created in the UK, making it one of the single most important contributions to the UK economy by any firm."
To extend the broadband network BT plans to lay more than 50,000km of fibre across the country in the next two years.