The Cisco CCIE Service Provider (CCIE SP) certification validates expert level skills required of a Network Engineer to configure, build, troubleshoot, and optimize a complex highly available Service Provider IP NGN core infrastructure.
Dialed Number Identification Service. Dialed Number Identification Service (DNIS) is a service sold by telecommunications companies to corporate clients that lets them determine which telephone number was dialed by a customer. This is useful in determining how to answer an inbound call. The telephone company sends a DNIS number to the client phone system during the call setup. The DNIS number is typically 4 to 10 digits in length. Any DID (Direct inward dial) number will have a DNIS. This is the number sent from the central office to the PBX (Private branch exchange) or key system, telling the telephone system which number was dialed.
Dynamic phone number insertion (DNI) is a process that marketers use to measure the impact of digital efforts on inbound phone calls. When a lead clicks though to your site from any advertisement, DNI technology displays a number thatâs unique to the specific search engine, web page, keyword or other source.isplaying Local Phone Numbers. Beyond getting tracking metrics, another reason to use DNI is to present a local phone number to certain customers. In many industries, the presence of a local phone number can increase the odds that a prospect calls you right away.