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cabinet
Free-standing and self-supporting enclosure for housing electrical and/or electronic equipment. It is usually fitted with doors and/or side panels which may or may not be removable.
call attempts
Number of calls in a statistical period.
call back on busy service
A service in which if a user calls an intra-office user who is busy, the system can automatically initiate a call to this intra-office user when detecting that this user is free.
call completion rate
In a measurement period, the ratio of the number of connected calls to the total number of call attempts. Calculation formula: Call completion rate = Number of connected calls / Total number of call attempts x 100%
call control
A set of functions used to process a call, including establishing, supervising, maintaining, connecting, and releasing calls, and provide service features.
call forwarding busy (CFB) service
A service that allows all the calls to a registered user to be forwarded automatically to a preset phone number when this user is busy.
call forwarding no reply (CFNR) service
A service that allows a call to a registered user to be forwarded automatically to a preset phone number if this user does not answer the call within 20 seconds.
call forwarding offline
A service that allows all the calls to a registered user to be forwarded automatically to a preset phone number when this user is offline.
call forwarding unconditional (CFU) service
A service that allows all the calls to a registered user to be forwarded to a preset phone number irrespective of the status of this user.
Call Hold
A subscriber can hold a call already set up. In this case, the transmission of media streams between the caller and callee is stopped, but the call resources are not released. The call can be resumed when required.
call hold service
A service that allows a user to stop an ongoing conversation and resume the conversation when necessary.
call out
To make a call to objects outside a customer service center in a way such as voice, short message, email, fax, or chat.
call prefix
A string of numbers, which is used to determine the service attribute of a call. Call prefixes are subsets of called numbers. A call prefix starts from the first digit of the called number. It can be a part of the called number or whole of the called number.
call park service
Through call park, a subscriber can hold the current call and resume the held call on another intra-office phone. If the subscriber has not resumed the call in the preset period, the system releases the call and then the held party hears the busy tone.
call restriction on an incoming trunk
A function that the unified gateway checks whether an incoming trunk has the outgoing call right in case the incoming trunk initiates an outgoing call. If the incoming trunk does not have the outgoing call right, the unified gateway restricts the incoming trunk to initiate an outgoing call to prevent the incoming trunk from initiating a call through the switch.
call source
A subscriber or an incoming trunk that initiates a call. In normal cases, subscribers or incoming trunks with the same caller attributes belong to the same call source. Call sources are classified according to the following caller attributes: pre-received digit, dialed number (DN) set, route selection source code, failure source code, national area code, and local MSC number.
Call Transfer
Provides the ability to transfer calls from one cordless handset to another or between the base speakerphone and any other registered handset within the system.
call transfer service
A service that allows any party in a call to transfer the call to the third-party and then exit from the call.
call transfer to voice mailbox on no reply (CTVMNR) service
A service that allows a call to a registered user to be forwarded automatically to the UMS if this user does not answer the call within 20 seconds. Then, the caller can leave messages according to prompts.
call transfer to voice mailbox unconditional (CTVMU) service
A service that allows all the calls to a registered user to be forwarded to the UMS unconditionally. Then, the caller can leave messages according to prompts.
call transfer to voice message on busy (CTVMB) service
A service that allows a call to a registered user to be forwarded automatically to the UMS if this user is busy. Then, the caller can leave messages according to prompts.
call waiting service
When there is a call to a user that is already in conversation, the user hears a prompt. In this case, the user can answer this call or neglect it. If the user answers this call, the user can switch between the two conversations.
call-out restriction service
The restriction on a calling party to dial particular numbers.
callback
A call mode in which both ends of the communication participate in the call. One end is called the Client, while the other end is caller the Server. The Client initiates a call, and the Server decides whether to callback or not. If a callback is needed, the Server tears down the connection and then initiates a call to the Client.
called number
The number dialed by the subscriber who originates a call.
caller number analysis prefix
When a caller number matches this prefix and originates a call, a number change is performed to the called number. Typically, an IVR recording flow access prefix is added in front of the called number. The call can then start the IVR recording flow and be recorded.
calling party number
The number of the subscriber who makes a call.
capacitive coupling
The electrical interaction between two conductors that is caused by the capacitance between them.
floating nut
floating nuts (or as they are more correctly named, 'tee nuts') have a range of uses but are more commonly used in the hobby for engine fixing (securing engine mounts to the firewall), wing fixings, and undercarriage fixing.
captive screw
A threaded screw which is held captive to a panel and which, when disengaged from its main nut, remains fixed to that panel.
card number service
A value-added service that helps to implement functions such as basic call, recharging an account, changing a password, querying account balance, binding terminals, prepayment, and postpayment.
CAS
See Channel Associated Signaling
CC through host convening
A conference method in which the host adds or deletes attendees on the phone during a conference.
CC through individual dialing-in
A conference method in which the attendees join a conference call by dialing the preset access code and password.
cc through system convening
A conference mode in which the phones of the pre-configured attendees ring at the preset time simultaneously and the attendees join the conference after they pick up the phone.
CDMA
See Code Division Multiple Access
CDR pool
A buffer that stores the original CDRs generated by the call control module of the board. The CDR pool enables the host to send CDRs at appropriate time. When the space of the CDR pool is limited, the host restricts the calls, generates corresponding alarms, and automatically sends the CDRs to the charging gateway. Thus, the CDR loss can be avoided when the MSOFTX3000 is disconnected from the MSC.
centralized alarm
The alarms of all the hosts connecting to the operation and maintenance unit (OMU).
CH
See Call Hold
Channel Associated Signaling
A signaling system in which signaling information is transmitted within a dedicated voice channel. China Signaling System No. 1 is a type of CAS signaling.
cleared alarm
A cleared alarm is reported when an alarm is cleared and the device or system restores. A cleared alarm corresponds to a fault alarm.
CLI
client end
client side: A description of technologies (for example: java-script and Macromedia Flash) that are downloaded and run by the user's Web browser rather than on the Web server.
client/server mode
A network model in which the client (a desktop PC) shares application programs and data through a central file server.
CLIP service
A service that allows the caller number to be displayed on the phone set of a registered user (callee) if the caller does not subscribe to the calling line identification restriction (CLIR) service.
CLIR service
A service that allows the phone number of a registered user (caller) not to be displayed on the callee phone set irrespective of whether the callee has subscribed to the calling line identification presentation (CLIP) service.
clock source
A device that provides standard time for the NTP configuration.
cno.1
A channel-associated signaling defined by China. CNO.1 is one of trunking modes for the host to connect to the PSTN.
co-group pickup service
A service that allows a registered user to answer the calls to any subscriber in the same pickup group as the registered user by dialing the pickup access code.
coaxial cable
Coaxial cable is a kind of copper cable between the community antenna and user homes.
Code And Decode
An operation performed to allow two terminals that support different voice encoding and decoding formats to communicate with each other. In a communications network, voice data need to be compressed to effectively use network resources, thus improving the network utilization and user capacity.
Code Division Multiple Access
A communication scheme that forms different code sequences by using the frequency expansion technology. In this case, subscribers of different addresses can use different code sequences for multi-address connection.
CODEC
See Code And Decode
Command Line Interface
A means of communication between a program and its user, based solely on textual input and output. Commands are input with the help of a keyboard or similar device and are interpreted and executed by the program. Results are output as text or graphics to the terminal.
Computer &Telephony Integration Link
A component that distributes protocols between the CCS and automatic call distributor. It provides a channel for the communication between the automatic call distributor and the external resources of the automatic call distributor.
Computer Telephony Integration
Technology that allows interactions on a telephone and a computer to be integrated or co-ordinated.
conference call (CC) service
A conference by telephone in which three or more parties in different locations participate by using a central switching unit.
config mode
A CLI command operation mode under which the user can run all the commands that can be executed in View mode and the device configuration and maintenance commands.
console interface
An interface for configuring and debugging devices. Physically, it can be an Ethernet interface or an RS-232 serial port.
control board
It is a board that is used to control and manage other boards in the system, and to control and manage the service transmission to the upper layer device.
control flow
A basic unit operated in the system. It is a flow defined according to service requirements. A control flow comprises tasks and events. Tasks are cascaded through events.
CRC
critical alarm
An alarm severity that indicates a severe problem exists with the resource and normal use is disrupted or severely impeded. This is the most severe alarm severity.
crossover cable
A twisted pair patch cable wired in such a way as to route the transmit signals from one piece of equipment to the receive signals of another piece of equipment, and vice versa.
CT
See Call Transfer
current equalization
The even output current between modules.
Cyclic Redundancy Check
A procedure used in checking for errors in data transmission. CRC error checking uses a complex calculation to generate a number based on the data transmitted. The sending device performs the calculation before transmission and includes it in the packet that it sends to the receiving device. The receiving device repeats the same calculation after transmission. If both devices obtain the same result, it is assumed that the transmission was error free. The procedure is known as a redundancy check because each transmission includes not only data but extra (redundant) error-checking values.
Parent Topic: Glossary