ISO/IEC 13872:2003 情報技術—システム間の電気通信と情報交換—プライベート統合サービスネットワーク—仕様、機能モデル、および情報フロー—電話転送補足サービス | ページ 6

4.2.1

Additional network feature

An Additional network feature (ANF) is a capability, over and above that of a basic service, provided by a PISN, but not directly to a PISN user.

4.2.2

Busy

An ISDN destination is considered to be busy if either a"network determined user busy" or a"user determined user busy" condition exists.

4.2.3

Call, basic call

fThe number of the user that answers (User C) .

4.2.4

Connected number

The number of the user that answers (User C).

4.2.5

Call Deflection

Call deflection is the type of diversion invoked by a served user's request.

4.2.6

Call Deflection from Alert

Call Deflection from Alert (CDA) is the type of diversion invoked by a served user's request during the alerting phase of an incoming call.

4.2.7

Call Deflection Immediate

Call Deflection Immediate (CDI) is the type of diversion invoked by a served user's request immediately after the receipt of an incoming call.

4.2.8

Diversion

Diversion is the redirection of a call, on behalf of a called user and prior to answer, to a number different from the number of that called user.

4.2.9

Diversion from Alert

Diversion from Alert is the type of diversion invoked from an alerting state.

Note 1 to entry: Diversion from Alert can occur as a result of the supplementary services CFNR and CD as specified in this International Standard.

4.2.10

Diversion Immediate

Diversion Immediate is the type of diversion invoked prior to reaching the alerting state.

Note 1 to entry: Diversion Immediate can occur as a result of the supplementary services CFB, CFU and CD as specified in this International Standard.

4.2.11

Diverted-to number

The diverted-to number is the number to which a call is diverted.

4.2.12

Diverted-to subaddress

The diverted-to subaddress is the subaddress to which a call is diverted.

4.2.13

Diverted-to user

The diverted-to user is the user to which a call is diverted.

4.2.14

Diverting cause

The diverting cause is a parameter which contains the reason for the diversion: CD, CFU, CFB, CFNR.

4.2.15

Diverting number

The diverting number is the number of the served user.

4.2.16

Forwarding

Forwarding is the type of diversion invoked automatically by the network in accordance with information previously registered in the network against the called number.

4.2.17

Forward switching

A network routeing algorithm which performs the diversion by joining together the first connection from User A's node to User B's node and a second, new connection from User B's node to User C's node.

4.2.18

Last diverting user

The last diverting user is the served user from the point of view of the diverted-to user for a particular stage of call diversion. In the case of a call subject to a single stage of call diversion, User B is the last diverting user from the point of view of User C. In the case of a call subject to multiple stages of call diversion, user B1 is the last diverting user from the point of view of user B2, user B2 is the last diverting user from the point of view of user B3, etc. The served user for the final stage of call diversion is the last diverting user from the point of view of User C.

4.2.19

Original called number

The original called number is the number of User B (in case of multiple call diversion user B1).

4.2.20

Original called user

The original called user is the first served user of a call which is subject to one or more stages of call diversion, i.e. User B or B1.

4.2.21

Partial rerouteing

A network routeing algorithm which performs the call diversion by replacing a particular part of the connection from User A's node (located in the public ISDN) to User B's node (located in a PISN) by another connection from User A's node to User C's node (located in the public ISDN). The new connection is established completely within the public ISDN by joining together the original connection from User A's node to the public ISDN gateway node and a second, new connection from the public ISDN gateway node to User C's node.

4.2.22

Presentation indicator

The presentation indicator is the indicator showing whether the diverted-to number should be presented to the calling user, as derived from User C's COLR supplementary service.

4.2.23

PISN number

A PISN number is a number belonging to a PISN numbering plan (E.164 ISDN/Private/Implicit numbering plan) specified in ISO/IEC 11571.

4.2.24

Private

An attribute indicating that the application of the so qualified item, e.g. a network, a unit of equipment, a service, is offered to or is in the interest of a determined set of users.

4.2.25

Public

An attribute indicating that the application of the so qualified item, e.g. a network, a unit of equipment, a service, is offered to the general public.

4.2.26

Public ISDN

A public telecommunication network which supports ISDN services between any two T-reference points.

4.2.27

Rerouteing

A network routeing algorithm which performs the call diversion by replacing the connection from User A's node to User B's node by another connection from User A's node to User C's node.

4.2.28

Served user

The served user is the user of a particular PISN number who is requesting that calls to his number be diverted. This user may also be referred to as the diverting user or the called user.

4.2.29

Terminal, terminal equipment

An item of equipment attached to a telecommunication network to provide access for a user to one or more services.

4.2.30

User A

User A is the calling user of a call which is subject to call diversion.

4.2.31

User B

User B is the served (diverting) user of a call which is subject to call diversion.

4.2.32

User B1, user B2, user B3, etc.

These are the served (diverting) users of a call which are subject to multiple stages of diversion. B1 is the first served user, B2 is the second served user, B3 is the third served user, etc.

Note 1 to entry: B2 is also the diverted-to user with respect to the first stage of call diversion, B3 is also the diverted-to user with respect to the second stage of call diversion, etc.

4.2.33

User C

User C is the diverted-to user with respect to the final stage of call diversion.