Telecom regulators of 23 countries from the Asia-Pacific will meet in Delhi on Monday to discuss challenges in framing rules for digital ecosystem and regional roaming, among others.<br/>'<br/><br/>Regulatory heads of Australia, Afghanistan, Iran, Malaysia, Bangladesh, Nepal, Sri Lanka, Vanuatu, Fiji and some others are slated to attend the international meet on August 21.<br/><br/>Trai Chairman R S Sharma told reporters in New Delhi today that the meet is being jointly organised by the International Telecom Union and Trai.<br/>