Maybe the correct one is

three-way conversation (ısdn)

Suggest a translation for this term

Tureng Dictionary and Translation Ltd.
Tureng Multilingual Dictionary offers you an extensive dictionary where you can search terms in English, French, German, Spanish, and Turkish. You can search words by their fields of profession, hear 9 different accents in 4 languages, add and correct entries. You can use our apps for iPhone, Android, iPad, Windows 10/11 and macOS.

English German online dictionary Tureng, where you can search in more than 2 million words in categories and different pronunciation options.

Turkish English Dictionary
German English Dictionary
Spanish English Dictionary
French English Dictionary
English Synonyms Dictionary
Privacy Policy
Terms of Use
About Us
Contact