- Industry: Telecommunications
- Number of terms: 29235
- Number of blossaries: 0
- Company Profile:
ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry.
In telephony, a signal, usually consisting of an audio tone interrupted at a slow rate, provided to a caller to indicate that the called-party instrument is receiving a ringing signal. Note: This signal may be generated by the called-party servicing switch or by the calling-party switch. 2. A ringing signal returned to a caller to indicate that one of the types of delayed automatic calling is now ringing the called party.
Industry:Telecommunications
In telephony, a signal, usually consisting of an audio tone interrupted at a slow repetition rate, provided to a caller to indicate that the called-party instrument is being sent a ringing signal. Note: The audible ringing tone may be generated by the called-party servicing switch or by the calling-party servicing switch, but it is not generated by the called telephone instrument. Synonyms audible ringing, ringback tone.
Industry:Telecommunications
In telephony, a signal, usually consisting of an audio tone interrupted at a slow repetition rate, provided to a caller to indicate that the called-party instrument is being sent a ringing signal. Note: The audible ringing tone may be generated by the called-party servicing switch or by the calling-party servicing switch, but it is not generated by the called telephone instrument. Synonyms audible ringing, ringback tone.
Industry:Telecommunications
In telephony, a test made to determine whether certain facilities, such as a subscriber line or a central office trunk, are available for use.
Industry:Telecommunications
In telephony, a user end device, separate from a subscriber telephone, which device produces an audible signal indicating that there is an incoming call from a switchboard or exchange.
Industry:Telecommunications
In telephony, an arrangement that uses separate leads, called the "E" lead and "M" lead, for signaling and supervisory purposes. Note 1: The near end signals the far end by applying -48 Vdc to the "M" lead, which results in a ground being applied to the far end's "E" lead. When -48 Vdc is applied to the far end "M" lead, the near-end "E" lead is grounded. Note 2: The "E" originally stood for "ear," i.e., when the near-end "E" lead was grounded, the far end was calling and "wanted your ear. " The "M" originally stood for "mouth," because when the near-end wanted to call (i.e., speak to) the far end, -48 Vdc was applied to that lead.
Industry:Telecommunications
In telephony, an audible or visual signal that indicates that no transmission path to the called number is available. Synonym busy tone. 2. In telephony, an audible or visual signal that indicates that the called number is occupied or otherwise unavailable. Synonym reorder tone.
Industry:Telecommunications
In telephony, an audible or visual signal that indicates that no transmission path to the called number is available. Synonym busy tone. 2. In telephony, an audible or visual signal that indicates that the called number is occupied or otherwise unavailable. Synonym reorder tone.
Industry:Telecommunications
In telephony, any of a number of special functions that may be specified initially, or added to, the user's basic service. Note: Modern telephone switches are capable of providing a wide variety of service features, such as call forwarding and call waiting.
Industry:Telecommunications
In telephony, of a circuit, a signal indicating a disconnect, unanswered call, or an idle condition.
Industry:Telecommunications
