Field Tech 6 questions with correct answers

Which piece of equipment in the VoIP phone system routes a call to the public switched telephone network (PTSN) when the receiving location is from outside the PacketCable managed IP network? Answer Gateway What are the three sub-network interfaces managed by PacketCable? Answer Hybrid fiber/coax (HFC), managed IP, and public switched telephone network (PSTN). Why is PacketCable VoIP a more efficient way of handling calls? Answer Most cable operators have built their own IP telephone networks that use Internet Protocol rules. Which of the VoIP service tiers bypass the cable operator's direct link to the public switched telephone network (PSTN) and route packets over the Internet to another telephone company? Answer Tier II Secondary VoIP. When a call is made from a phone that is on a managed IP phone system to a phone that is outside the managed IP phone system, how does the call get routed to the receiving phone? Answer The gateway down-converts the digital data to an analog electrical signal format and routes the call to the public switched telephone network (PSTN). Because a cable operator will support as many lines as technically possible for a business customer, what does the installer have to do prior to connecting the embedded multimedia terminal adapter (EMTA)? Answer Check the RF signal levels on the cable entering the building.