olemus
suhtlus telefonikõnede kaudu
= information exchange over phone

ülevaateid
https://www.krisamerikos.com/blog/phone-coversation-in-english

https://www.speakconfidentenglish.com/telephone-calls-in-english/

https://www.worddive.com/blog/best-phrases-and-tips-for-phone-calls-in-english/

https://www.indeed.com/career-advice/career-development/phone-etiquette

https://preply.com/en/blog/business-calls-in-english/