Definitions for "Carrier pre-selection"
Keywords:  dialling, tellas, utv, eircom, dialler
A 4-digit code that enables an end-user to override the default carrier and use another carrier, in order to take advantages of special offers, etc. Click here to view animation
the facility offered to customers which allows them to opt for certain defined classes of call to be carried by an operator selected in advance (and having a contract with the customer), without having to dial a routing prefix or follow any other different procedure to invoke such routing.
Carrier pre-selection enables the customers of those PTOs with significant market power to pre-select an alternative carrier for their outbound calls without having to enter a three- or four-digit access code as was previously the case.