Britain and France are expected to argue that current sanctions are not working and call for the embargo to be altered at a meeting with European Union foreign ministers in Brussels.
Mr Hague's calls look set to be rejected with several EU countries - including the Netherlands, Sweden and the Czech Republic - opposed to the plans over fears the weapons could fall into the hands of Islamic extremist groups.
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South Korean officials said the hotline would help facilitate dialogue and reduce misunderstanding during times of tension.
The Gunners boss has announced he will step down at the end of the season.
Moya Greene will be pursuing ‘a range of other interests, including developing her portfolio career’.