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Service Profile Identifier

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A Service Profile Identifier is a number issued by ISDN service providers in North America that identifies the services and features of an ISDN circuit. Service providers typically assign each B channel a unique SPID. A SPID is derived from the telephone number assigned to the circuit, and in the U.S. it typically follows a generic, 14-digit format.

References

"Terminologies Simplified". Network Magazine: Technology Decisions for the Enterprise. Retrieved Dec 5. {{cite web}}: Check date values in: |accessdate= (help); Unknown parameter |accessyear= ignored (|access-date= suggested) (help)

"What is a SPID?". PC Webopedia. Retrieved Dec 05. {{cite web}}: Check date values in: |accessdate= (help); Unknown parameter |accessyear= ignored (|access-date= suggested) (help)

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