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A network operator makes copies of the CDB and queries it to find out to which network to send a call. According to RFC3482, this is also known as All Call Query (ACQ) and is highly efficient and scalable. A majority of the established and upcoming MNP systems across the world are based on this ACQ/CDB method of call routing.
Local number portability (LNP) for fixed lines, and full mobile number portability (FMNP) for mobile phone lines, refers to the ability of a "customer of record" of an existing fixed-line or mobile telephone number assigned by a local exchange carrier (LEC) to reassign the number to another carrier ("service provider portability"), move it to another location ("geographic portability"), or ...
A call detail record ( CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions (e.g., text message) that passes through that facility or device. The record contains various attributes of the call, such as time, duration ...
Unstructured Supplementary Service Data ( USSD ), sometimes referred to as " quick codes " or " feature codes ", is a communications protocol used by GSM cellular telephones to communicate with the mobile network operator 's computers. USSD can be used for WAP browsing, prepaid callback service, mobile-money services, location-based content ...
In addition to the support options listed above, paid members also have access to 24/7 phone support by calling 1-800-827-6364. Learn about the support options AOL offers and how to access help for your question or issue.
Give Us Call. For Verizon Support. 1-800-VERIZON. Español del cliente y ayuda técnica: 1-866-885-5117. AOL TTY service for the deaf or hard-of-hearing: 1-800-759-3323 (Must have TTY-enabled equipment) Contact AOL Page details: Hours of Operations: Billing/Account Support, Mon-Fri: 8am-1am EST; Technical Support, 24 x 7.
Telephone number mapping systems provide facilities to determine applicable Internet communications servers responsible for servicing a given telephone number using DNS queries. The most prominent facility for telephone number mapping is the E.164 number to URI mapping ( ENUM) standard. It uses special DNS record types to translate a telephone ...
Caller ID. Caller identification ( Caller ID) is a telephone service, available in analog and digital telephone systems, including voice over IP (VoIP), that transmits a caller 's telephone number to the called party 's telephone equipment when the call is being set up. The caller ID service may include the transmission of a name associated ...