If e-voting is currently being used, what type(s) of technology used?

National Democratic Institute, Iran’s June 18, 2021 Elections, accessed 28 December 2021

“In select city and village council elections, voting will - for the first time - take place through electronic voting. Introduced as a measure to increase the security and credibility of election processes, constituencies that are adopting the new electronic voting procedures will effectively require citizens to vote in two separate electoral processes using two distinctive means: casting paper ballots for the presidential election and using the new electronic system for the city and village council elections. Significant voter education may be necessary to ensure that voters understand and can properly  navigate the two parallel processes on election day”

According to a news report, e-voting has been used in in 145 cities during the 2017 City and Village Councils elections. This report mentions the use of electronic ballot boxes which indicate that DRE have been used. Another article mentions that e-voting in Iran "is in no way a web-based system, but an offline version".