The Ministry of Foreign Affairs and the military-run Viettel Group on Monday launched a helpline to receive calls from all Vietnamese citizens abroad.
The line at +844.62.844.844 will process requests for help as well as to receive information provided by Vietnamese citizens when they are outside Vietnam.
The round-the-clock hotline is capable of handling more than 1,500 calls per day and is served by a professional staff, according to the telecom giant Viettel.
Normal call fees are applied without any additional charge.
Deputy Prime Minister and Foreign Minister Pham Binh Minh highly praised the new service, saying that the government has always put great importance in the protection of Vietnamese citizens.
Vietnam has established diplomatic ties with nearly 200 countries and trade ties with almost all of countries and territories worldwide.
Over 600,000 Vietnamese, including 100,000 students, are working and studying abroad, the Vietnam News Agency reported.
In addition, more than 200,000 Vietnamese women have got married in foreign countries.