IT Questions and Answers :)

animated-update-image-0026

COVID-19 India HEAT MAP

A message to our readers about COVID-19

With the uncertainty surrounding the outbreak of the corona virus. We want to reassure our reader stay safe and Healthy.Be aware and alert. Work as one nation. Sanitize and disinfect all equipment before entering your home, work and anywhere.

Wednesday, November 22, 2017

Which of the following is NOT a business phone technology?

Which of the following is NOT a business phone technology?

  • PBX
  • SIP
  • DNS
  • PRI 

Which of the following is NOT a business phone technology?










EXPLANATION

Domain name system (DNS) is not a business phone technology. The Primary Rate Interface (PRI) is a telecommunications interface standard used on an Integrated Services Digital Network (ISDN) for carrying multiple DS0 voice and data transmissions between the network and a user. The Session Initiation Protocol (SIP) is an Internet Engineering Task Force (IETF) standard protocol for initiating an interactive user session that involves multi-media elements, such as video, voice, chat, gaming, and virtual reality. A PBX (private branch exchange) is a telephone system within an enterprise that switches calls between enterprise users on local lines while allowing all users to share a certain number of external phone lines. 

Share:

0 comments:

Post a Comment

Popular Posts