How it works
DNIS identifies the number the caller dialled, enabling separate handling for service lines or campaign numbers. Telephone numbering depends on national rules, carrier capabilities and the selected calling route. Customers benefit from consistent dialling formats and reliable number reachability.
Business example
A contact centre identifies which advertised number was dialled and selects the appropriate call flow.
What to consider
Before deployment, verify geographical availability, permitted number formats, tariffs, caller-ID restrictions and both inbound and outbound calling behaviour.