Putting David Cameron back in Downing Street is the only way British voters can have their say over Europe in an in-out referendum.

That was the rallying call to party conference today in a speech by Syed Kamall, leader of Britain's Conservative MEPs.

He said British people deserved a say on the European Union, just as Scotland had deserved its say on the United Kingdom. Status quo was not an option for either.

Dr Kamall,Conservative MEP for London,  said voters demanded real change in Europes, and stressed: "We are the only political party that will negotiate a better deal for Britain. And then give the British people an in-out referendum. Labour and Lib Dems won't. UKIP simply can't. Only Conservatives can and will deliver a referendum."

Debunking the myth of British isolation in Europe, he said Conservative leadership has repeatedly proven doubters wrong by delivering a cut to the EU budget, removing Britain from Euro bailouts and vetoing treaty change when it would have harmed British interests.

He said :"Now is the time to roll up our sleeves and make the case for more reform. We can only achieve these reforms by working with our allies across Europe.

"Our critics will falsely tell you that we are alone in this fight. Our allies come from across Europe where more people and more parties are crying out for change.

"That’s why five years ago, we formed a new political group that looks to the future rather than looking back to the past. Forward to the challenges of 2050s not solutions to problems of the 1950s.

"I stand before you as leader of The European Conservatives and Reformists Group. The third largest Group in the European Parliament.

"Our allies are looking to a Conservative government to drive change in Europe. So next May …We need Conservative  ideas setting the agenda in Europe. We need a Conservative Government with a clear majority in Westminster. We need David Cameron in Number Ten."

Scottish Conservative MEP Ian Duncan warmly welcomed today's referendum result.

He said: "The people of Scotland have spoken, loud and clear. It is the settled will of the Scottish people that we remain within the family of nations known as the United Kingdom. A union some 300 years in the making will continue.

"However a ‘No’ vote on separation does not mean no change. The serious work of making that change real must now begin. The Prime Minister has outlined a timetable for delivering the change within the United Kingdom that the people of Scotland want, and it is measured in weeks, not years. A white paper will be published in November, with legislation drafted by January 2015.  

"The Prime Minister has issued the call for all political parties -  including the Scottish National Party (SNP) - to come together to determine the nature of the new settlement.  It is essential that all Scots set aside the differences of the campaign and come together in the spirit of co-operation.

"Importantly this change will not just empower Scots, it will also bring about a new settlement for each of the nations of the UK, and it will address the thorny ‘West Lothian Question’ whereby Scots MPs have been able to vote on English matters, but English MPs have not been able to vote of Scottish matters (since these are addressed in the Edinburgh Parliament).

"There is serious work ahead.  This is an exciting time for Scotland and for the United Kingdom."

Digital technology needs to be at the centre all European trade – not marginalised as a separate corner of the overall economy.

That is the message to MEPs from Vicky Ford, Conservative chairman of the European Parliament's Single Market Committee.

In a speech on the digital single market to the House in Strasbourg she warned:  "The digital economy is no longer a subset of economic activity. Today every market has digital elements and Europe's single market must not be left behind.

"Unlocking the opportunities of our digital world is key to delivering jobs and growth."

She pointed out that in the G20 the internet economy is forecast to grow by 8% every year for the next five, while E-commerce alone could save our consumers more than €150 billion (£120b) a year.

Burdens on new businesses must be lifted, payment costs cut and barriers removed to the delivery of goods ordered online.

She stressed consumer confidence and said : "Fraud prevention, licences, copyright and logistics all need to be addressed. Laws must prevent abuse by market-dominators but also get the right balance between traditional operators and over-the-top players.

"If we want to get the best out of e-government, e-health, e-procurement then we need ICT systems which can talk to each other.

"Remember, Big Data can bring big benefits. Not only economically but also to society in sectors like personalised medicines and health. We do need a data protection package but it needs to be one that is not only pro-individuals, but also pro-business and pro innovation

"However, to be able to share our data we also need to have confidence that it won't be misused.  Hence, the work we are doing on Network Security."

Crucially, she said, the benefits of the digital market must be available to all:  "As we race to embrace the digital world we mustn’t leave rural communities behind. Infrastructure is essential, both to reach remote areas and to provide deep coverage in cities."