DID Routing
Short definition
DID Routing: Routing inbound calls according to the direct dial-in number the caller reached.
Meaning and how it works
A single trunk can serve multiple DID numbers, each mapped to a separate inbound call destination. Telephone numbering depends on national rules, carrier capabilities and the selected calling route. Customers benefit from consistent dialling formats and reliable number reachability.
Business applications
- Business scenario:
Different company numbers route callers directly to sales, support or a particular branch.
What to check before implementation
Before deployment, verify geographical availability, permitted number formats, tariffs, caller-ID restrictions and both inbound and outbound calling behaviour.