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Using the Telcordia standards for circuit naming allow a LEC the ability to build a certain amount of intelligence into the name of a circuit. The way Telcordia has developed circuit IDs, different types of circuit connections require different formats for the circuit ID. In each format, different segments of the ID have very specific meaning.
The ISDN Services User Part Circuit Identification Code (CIC) is part of the Signaling System #7 which is used to set up telephone calls in Public Switched Telephone Networks [1] as part of the Initial Address Message (IAM).
A Service Profile Identifier (SPID) 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 ...
The hexadecimal format displays an ESN as eight digits and also does not separately display 14 bit manufacturer codes which occupy 3.5 hexadecimal digits. As ESNs have essentially run out, a new serial number format, MEID, was created by 3GPP2 and was first implemented by Verizon in 2006. MEIDs are 56 bits long, the same length as the IMEI and ...
CLI – Calling Line Identification – See Caller ID. CLIP – Calling Line Identification Presentation – See Caller ID. CLLI – Common Language Location Identifier Clone. Closed PRL – See PRL. CoA – Care-of-Address – See Mobile IP. CND – Caller Number Display – See Caller ID. CNID – Calling Number Identification – See Caller ID
ANI is conceptually and technically different from caller ID service. [1] A caller's telephone number and line type are captured by ANI service even if caller ID blocking is activated. The destination telephone company switching office can relay the originating telephone number to ANI delivery services subscribers.
An automatic number announcement circuit (ANAC) is a component of a central office of a telephone company that provides a service to installation and service technicians to determine the telephone number of a telephone line. The facility has a telephone number that may be called to listen to an automatic announcement that includes the caller's ...
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).