ext.
the written abbreviation of extension when you mean a particular telephone line
EXT.
Meaning of EXT. in English
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012
ext.
the written abbreviation of extension when you mean a particular telephone line
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012