ATIS Telecom Glossary
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predesignation
An exchange carrier (EC) service that is provided by suitably equipped end-office switching systems, and by means of which are provided carrier identification codes for calling users' calls outside the access service area when they are dialed without a customer accounting code (CAC). [After T1.104-199]

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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