Before communication and transfer, a path is determined and dedicated to communication between the source and destination, between the caller and call recipient.
Tupu nkwurịta okwu ma nyefee, a na-ekpebi ụzọ ma raara onwe ya nye na nkwurịta okwu n'etiti isi iyi na ebe ọ ga-aga, n'etiti onye na-akpọ oku na oku.