The iconectiv® Business Integrated Routing and Rating Database System is a centrally maintained database into which Service Providers (SP) or their agents enter data that supports the routing and rating of calls. Data reflects all North American Numbering Plan (NANP) (CEntral Office (CO) Code (NPA-NXX) and Thousands-Block (NPA-NXX-X) assignments and is closely aligned with many of the processes and data… (Read More →)

Deprecated term. See busy signal.

In a communications system, the sliding 60-minute period during which occurs the maximum total traffic load in a given 24-hour period.
Note 1: The busy hour is determined by fitting a horizontal line segment equivalent to one hour under the traffic load curve about the peak load point.
Note 2: If the service time interval is less than 60 minutes,… (Read More →)

During a 1-year cycle, the period of 3 consecutive months having the highest busy hour traffic.

1. 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.

In telephony, a test made to determine whether certain facilities, such as a subscriber line or a central office trunk, are available for use.

Synonym busy signal.

In a public switched telephone network, a network-provided service feature that permits an attendant to verify the busy or idle state of station lines and to break into the conversation.
Note: A 440-Hz tone is applied to the line for 2 seconds, followed by a
0. 5-second burst every 10 seconds, to alert both parties that the attendant is connected… (Read More →)

Abbreviation for bandwidth.

1. The use of any telecommunications facilities or services that circumvents those of the local exchange common carrier.
Note: Bypass facilities or services may be either customer-provided or vendor-supplied.
2. An alternate circuit that is routed around equipment or system component.
Note: Bypasses are often used to allow system operation to continue when the bypassed equipment or a system component… (Read More →)