Called party

calleebe calledcall receivercall recipientcall recipientscalledcalled numberdestinationincoming callrecipient
The called party (in some contexts called the "B-Number") is a person who (or device that) answers a telephone call.wikipedia
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Telephone call

callphone callphone calls
The called party (in some contexts called the "B-Number") is a person who (or device that) answers a telephone call.
A telephone call is a connection over a telephone network between the called party and the calling party.

Conference call

conference callingconference callsaudio conferencing
In some situations, the called party may number more than one: such an instance is known as a conference call.
Then the hook flash button (or recall button) is pressed and the other called party's phone number is dialed.

Calling party

callercall originatorcall
The person who (or device that) initiates a telephone call is the calling party. In most other countries (e.g. most European countries), the elevated interconnect fees are paid fully by the calling party and the called party incurs no charge.
The person who, or device that, receives a telephone call is the called party.

Collect call

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In a collect call (i.e. reverse charge), the called party pays the fee for the call, when it is usually the calling party that does so. The called party also pays if the number dialed is a toll-free telephone number.
A collect call in Canada and the United States, known as a reverse charge call in other parts of the English-speaking world, is a telephone call in which the calling party wants to place a call at the called party's expense.

Interconnect agreement

interconnectinterconnection agreements
In most other countries (e.g. most European countries), the elevated interconnect fees are paid fully by the calling party and the called party incurs no charge.
In the public switched telephone network, an interconnect agreement invariably involves settlement fees based on call source and destination, connection times and duration, when these fees do not cancel out between operators.

Caller ID

caller line identificationCLIcall display
Caller ID (caller identification, CID), also called calling line identification (CLID), Calling Line Identification (CLI), calling number delivery (CND), calling number identification (CNID), calling line identification presentation (CLIP), or call display, is a telephone service, available in analog and digital telephone systems, including VoIP, that transmits a caller's telephone number to the called party's telephone equipment when the call is being set up.

Telephone number

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The exchange completes the call either to another locally connected subscriber or via the PSTN to the called party.

Supervision (telephony)

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For example, the called party may indicate to the telephone exchange that the call is being disconnected by the called party by allowing loop current to flow in the line, or the called party indicates to the exchange that the call is being answered.

Voice broadcasting

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Voice broadcasting is a mass communication technique, begun in the 1990s, that broadcasts telephone messages to hundreds or thousands of call recipients at once.

Call forwarding

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Call forwarding, or call diversion, is a telephony feature of some telephone switching systems which redirects a telephone call to another destination, which may be, for example, a mobile or another telephone number where the desired called party is available.

Misdialed call

wrong numbermisdialmisdialled calls
The recipient of a wrong number is usually unknown to the caller.

Foreign exchange service (telecommunications)

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To call originators, it appears that the called party having the FX service is located in the foreign exchange area.

ISDN User Part

ISUP
To allow a call to be set up correctly, where ISUP is supported, a switch will signal call-related information like called party number to the next switch in the network using ISUP messages.

Automatic message accounting

automatic message accountcall accountingcall record-keeping
Each punch recorder was responsible for 100 trunks, and its associated call identity indexer (CII) identified the trunk for an initial entry when connecting the call, an answer entry when the called party answered, and a disconnect entry when the call was cleared.

Call whisper

call whispering
It involves the playing of a message to the called party when they have answered a call, during which time the calling party continues to hear ringing.

Telephone

phonetelephonesLocal Telephone Service
On a modern push-button telephone, the caller then presses the number keys to send the telephone number of the called party.

Softswitch

soft switchesVoIP softswitch
As a practical distinction, a Skype-to-Skype phone call is entirely IP (internet) based, and so uses a softswitch somewhere in the middle connecting the calling party with the called party.

Ringing (telephony)

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When the called party answers by taking the telephone handset off the switchhook, the subscriber's telephone draws direct current from the central office battery.

Call detail record

call-detail recordCDRcall data
the phone number receiving the call (called party, B-party)

Remote call forwarding

In telecommunication, a remote call forwarding is a service feature that allows calls coming to a remote call forwarding number to be automatically forwarded to any answering location designated by the call receiver.

Backbone network

core networkbackbonenetwork backbone
3) Call Control/Switching: call control or switching functionality decides the future course of call based on the call signalling processing. E.g. switching functionality may decide based on the "called number" that the call be routed towards a subscriber within this operator's network or with number portability more prevalent to another operator's network.

Line signaling

line signallingsupervisionLine
Line signaling is responsible for off-hook, ringing signal, answer, ground start, on-hook unidirectional supervision messaging in each direction from calling party to called party and vice versa.