ATIS Telecom Glossary
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network provided number (NPN)
An ISDN number, supplied by the calling user's or the redirecting user's network, which is associated with the calling user or the redirecting user. It is possible that the NPN may have the same value as the user provided number (UPN) especially in cases where delivery of two calling party numbers is supported. The NPN may also be accompanied by a subaddress. [T1.625-1993]

 

 

 

 

 

 

 

 

 

 



 
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