A routing method where a caller dials a specific access code (often a 10-10-XXX number) to route a toll call through a third-party telecommunications provider instead of their presubscribed long-distance carrier. This allows users to take advantage of cheaper per-minute rates without formally changing their primary telephone service.
Heard on the job
The hotel uses a dial-around code to route international calls through a cheaper trunk.
Also heard as
- casual calling
- 10-10 dialing
Related terms
Prefix
The initial digits of a telephone number that route the call to a specific geographic region or service type.
Exchange
A physical building or the specific set of telephone numbers routed through it.
PSTN
The global infrastructure of circuit-switched telephone networks operated by national and regional carriers.