What is another word for DDI?
Pronunciation: [dˌiːdˌiːˈa͡ɪ] (IPA) 
DDI, which stands for Direct Dial-In, is a term commonly used in telephony and communication industries. It is a private line extension for employees that allows them to directly receive calls without going through the main switchboard. However, there are various synonyms for DDI that are used depending on the region and industries. These synonyms include DID (Direct Inward Dialing), PTSN (Public Switched Telephone Network) extension, and DSN (Direct Station Number). Regardless of the synonym used, the function of DDI is to provide employees with a direct and secure line that enhances their communication and productivity.
