ATIS Telecom Glossary
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fast select
An optional user facility in the virtual call service of CCITT X.25 protocol (now, ITU-T X.25 protocol) that allows the inclusion of user data in the call request/connected and clear indication packets. Note: Fast select is an essential feature of the CCITT X.25 (1984) protocol.

 

 

 

 

 

 

 

 

 

 



 
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