Iran's Foreign Ministry spokesman embraced the Qatari announcement of the normalization of Iran diplomatic relations as a "rational and positive" step, saying the conflict-ridden Middle East desperately needs closer bonds among regional countries.
Although it is still unclear when Qatar's ambassador to Iran will resume office in Tehran.
The ministry also announced that Qatar's Foreign Minister Sheikh Mohammed bin Abdulrahman al-Thani held a telephone conversation with his Iranian counterpart Mohammad Javad Zarif.
A statement issued following the talks claims the two men "discussed bilateral relations and means of boosting and developing them as well as a number of issues of common concern".
Qatar restored full diplomatic relations with Iran early Thursday, disregarding the demands of Arab nations now locked in a regional dispute with the energy-rich country that it lessen its ties to Tehran.
Qatar is headed, like Saudi Arabia and the other Gulf states, by a Sunni dynasty, while Iran is a predominantly Shiite country.
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In a series of tweets this week, the UAE's Minister of State for Foreign Affairs Dr. Anwar Gargash criticized Qatar's decision as escalation of the Gulf dispute. But Qatar seems prepared to stand its ground and has been relying on food and material imports from Iran, Turkey and Oman to beat the embargo.
Despite recalling its ambassador, Qatar maintained its economic ties with Iran, with which it shares the world's largest natural gas reservoir, called the South Pars Gas Field in Tehran and the North Field in Doha. Attempts by Kuwait, the USA and others have failed to make headway. Unlike Riyadh, however, Doha had not cut all diplomatic ties with Iran.
"The management of the crisis caused the burning of bridges, the squandering of sovereignty and the deepening of the Qatari crisis and undermined what remained of the mediator's chances", he wrote in a Twitter post on Thursday. "We hope they will choose another path".
Qatar has previously accused the Saudi-led bloc of putting pressure on African states to take sides in the row.