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  2. Caller ID - Wikipedia

    en.wikipedia.org/wiki/Caller_ID

    Caller ID spoofing is the practice of causing the telephone network to display a number on the recipient's caller ID display that is different than that of the actual originating station. [45] Many telephone services, such as ISDN PRI based PBX installations, and voice over IP services, permit the caller to configure customized caller ID ...

  3. Calling Name Presentation - Wikipedia

    en.wikipedia.org/wiki/Calling_Name_Presentation

    In the US, the caller's name, or CNAM information, is not sent during a call. Rather, the terminating carrier is responsible for providing the Caller ID information to its customer. The terminating carrier performs a database lookup using the caller's phone number to obtain the name information to display with Caller ID.

  4. Automatic number identification - Wikipedia

    en.wikipedia.org/wiki/Automatic_number...

    Modern toll-free telephone numbers, which generate itemized billing of all calls received instead of relying on the special fixed-rate trunks of the Bell System's original Inward WATS service, depend on ANI to track inbound calls to numbers in special area codes such as +1-800, 888, 877, 866, 855, 844, and 833 with 822 reserved for future toll free use (United States and Canada), 1800 ...

  5. Line information database - Wikipedia

    en.wikipedia.org/wiki/Line_Information_DataBase

    In the US, caller ID name information is not transmitted from the originating office to the destination office. It is the terminating carrier that is responsible for providing the caller ID information to its customers. The carrier performs a database lookup using the caller's telephone number to obtain the name information for the caller ID ...

  6. SIP URI scheme - Wikipedia

    en.wikipedia.org/wiki/SIP_URI_scheme

    SIP is vulnerable to Caller ID spoofing as the displayed name and number, much like the return address on e-mail, is supplied by the sender and not authenticated. Servers supporting inbound sip: connections are routinely targeted with unauthorised REGISTER attempts with random numeric usernames and passwords, a brute force attack intended to ...

  7. Network Caller ID - Wikipedia

    en.wikipedia.org/wiki/Network_Caller_ID

    Network Caller ID (NCID) is an open-source client/server network Caller ID (CID) package. [1] NCID consists of a server called ncidd (short for NCID daemon), a universal client called ncid, and multiple client output modules and gateways. The server, ncidd, monitors either a modem, device or gateway for the CID data.

  8. List of telephony terminology - Wikipedia

    en.wikipedia.org/wiki/List_of_telephony_terminology

    Call originator - (or calling party, caller or A-party) a person or device that initiates a telephone call by dialling a telephone number. Call waiting - a system that notifies a caller of another incoming telephone call by sounding a sound in the earpiece. Called party - (or callee or B-party) Caller; Calling party; Conference call (multi ...

  9. Vertical service code - Wikipedia

    en.wikipedia.org/wiki/Vertical_service_code

    On a touch tone telephone, the codes are usually initiated with the star key, resulting in the commonly used name star codes. On rotary dial telephones, the star is replaced by dialing 11 . In North American telephony , VSCs were developed by the American Telephone and Telegraph Company (AT&T) as Custom Local Area Signaling Services ( CLASS or ...