Cameron's call yesterday to Rouhani, the first such high-level exchange in a decade, came on the eve of a new round of talks in Geneva between world powers and Iran on Tehran's nuclear programme.
"As Iran is determined that its nuclear activities will remain peaceful, it will strongly defend its nuclear rights," the official IRNA news agency reported Rouhani as telling Cameron.
"We will accept no discrimination on this issue. The language of respect must replace that of threats and sanctions," he added.
Cameron "underlined the necessity of Iran comprehensively addressing the concerns of the international community about their nuclear programme, including the need for greater transparency", a Downing Street statement said.
IRNA said Rouhani also held talks on the telephone with Chinese President Xi Jinping, telling him Tehran was seeking "an accord which preserves its rights and shows that the Iranian nuclear programme is totally peaceful."
He called for China to oppose "excessive demands of certain countries," referring to France which took a tough stand at the last round of talks in Geneva at the start of November.
And before leaving Rome for Geneva, Iranian Foreign Minister Mohammad Javad Zarif told reporters that a deal "depends to what degree (world powers) are ready to respect Iran's rights.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
