toll center वाक्य
"toll center" हिंदी में toll center in a sentenceउदाहरण वाक्य
- In U . S . common carrier telephony service, a toll center designated " Class 4C " is an office where assistance in completing incoming calls is provided in addition to other traffic; a toll center designated " Class 4P " is an office where operators handle only outbound calls, or where switching is performed without operator assistance.