Where does this definition of calling exchange come from?
This entry for calling exchange is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Does calling exchange appear elsewhere on Lughet?
Yes — calling exchange appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.