Yes. Firstly, the basic format for telephone and fax number when registering/modifying domains (applicable for all domain extensions) is +[country code].[telephone number]. For example, if your country code is +88 & telephone number is 01610402061, then you should input +88.01610402061. The fax number format is the same. Secondly, the address should be less than 64 characters. Thirdly, the country should be chosen from the drop down menu. If you register/modify domains through API/CGI, it's recommended to use the abbreviation format for country.
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