DID Routing

Definition

Routing inbound calls according to the direct dial-in number the caller reached.

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 example

Different company numbers route callers directly to sales, support or a particular branch.

What to consider

Before deployment, verify geographical availability, permitted number formats, tariffs, caller-ID restrictions and both inbound and outbound calling behaviour.

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