WO2000030331A1 - Procede et centre de commutation numerique destines au transfert ou reacheminement d'appel - Google Patents

Procede et centre de commutation numerique destines au transfert ou reacheminement d'appel Download PDF

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Publication number
WO2000030331A1
WO2000030331A1 PCT/DE1999/003653 DE9903653W WO0030331A1 WO 2000030331 A1 WO2000030331 A1 WO 2000030331A1 DE 9903653 W DE9903653 W DE 9903653W WO 0030331 A1 WO0030331 A1 WO 0030331A1
Authority
WO
WIPO (PCT)
Prior art keywords
subscriber
call
switching center
digital
digital switching
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/DE1999/003653
Other languages
German (de)
English (en)
Inventor
Bernhard Krembs
Christoph Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG, Siemens Corp filed Critical Siemens AG
Priority to EP99960909A priority Critical patent/EP1131941A1/fr
Publication of WO2000030331A1 publication Critical patent/WO2000030331A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/54—Arrangements for diverting calls for one subscriber to another predetermined subscriber
    • H04M3/543—Call deflection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0016—Arrangements providing connection between exchanges
    • H04Q3/0025—Provisions for signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7

Definitions

  • the present invention relates to a method for rerouting or forwarding calls in a telecommunications network and to a digital switching center with a call forwarding or call forwarding function.
  • the present invention relates generally to the services of call diversion in telecommunication networks, which are also referred to as call diversion and enable the user to divert incoming connections under different conditions to other connections, to announcements or to a service person (operator).
  • FIG. 3 shows three subscribers A, B, C of a telecommunications network, subscriber B being able to perform the following services, for example:
  • FIG. 4 shows the case of a call diversion as is carried out by a digital switching center 3 according to the prior art.
  • a first subscriber A establishes a connection 2 to a second, digital exchange 3, to which a subscriber B is assigned, via a first exchange 1.
  • the call from the first switching center 1 via the line 2 is processed by a group processor 6 for the first subscriber A and then given to a group processor 8 for the second subscriber B by means of a switching network 7.
  • both the signaling channel and the user channel (voice channel) is also routed from the first switching center 1 via the switching network 7 and a group processor 9 for the subscriber C to the third switching center 5 via the line 4.
  • the central idea of the invention is that between the switching digital switching center and the assigned subscriber activating the corresponding service, a logical link is sufficient, which would, for example, meet the needs regarding possible subscriber self-entries.
  • a method for forwarding or forwarding calls in a telecommunication network with at least a first subscriber, a digital switching center, to which a subscriber activating the forwarding or forwarding is assigned, and a further subscriber is therefore provided.
  • a call with a signaling channel and a user channel is initiated by the first
  • Subscribers to the (switching) subscriber assigned to the digital switching center After diversion, transfer or the like has taken place, a logical connection is held between the digital switching center and the subscriber activating the service. Since there is no longer any physical connection between the digital switching center and the subscriber activating the service, the corresponding resource can be saved.
  • the user channel can be routed in the digital switching center through a group processor for the first subscriber, a switching network and a group processor for the other subscriber, and only the signaling channel is additionally routed through a group processor for the subscriber, which is assigned to the digital switching center and which activates the forwarding or redirection service.
  • the signaling channel can be kept between the subscriber activating the service and the digital switching center by creating a logical link with a pseudo port, which replaces the physical connection for the user channel.
  • a digital switching center with a call forwarding or call forwarding function is also provided.
  • a controller is provided in the digital switching center which, after the call has been diverted or passed on, between the digital switching center and the subscriber who is assigned to this digital switching center is and the corresponding service is activated, only a logical connection - and no physical connection - holds.
  • the path for the user channel after call diversion or call forwarding can lead through a group processor for the first subscriber, a switching network and a group processor for the further subscriber, whereas the path for the signaling channel through the group processor for the first subscriber, the switching network, a group processor For the subscriber who is assigned to the digital switching center and who activates the service and leads the group processor for the additional subscriber.
  • a logical link can be provided with a pseudo port, which replaces the physical connection for the user channel.
  • FIG. 1 shows a telecommunications network with a digital exchange according to the present invention
  • FIG. 2 shows a schematic representation of the control as it is carried out in a digital exchange according to the invention
  • Figure 3 is a schematic representation of a service that can be, for example, a call transfer, a call transfer or a call pickup, and
  • Figure 4 shows a telecommunications network with a known digital switching center.
  • the telecommunications network shown in FIG. 1 has three subscribers A, B, C, each of whom is assigned a switching center 1, 3 or 5. At least the switching center assigned to subscriber B is a digital switching center 3.
  • the example shown in FIG. 1 assumes that, starting from subscriber A, a call with a user channel and a signaling channel to subscriber B hm is set up via a line 2. Furthermore, it is assumed that a service such as call forwarding, call forwarding or call pickup is activated by subscriber B. For example, suppose subscriber B activates the diversion of the call from subscriber A to subscriber C.
  • the paths 10, 11 of the user channel (voice path) or the signaling channel m of the digital switching center 3 are routed separately.
  • the path 11 for the user channel (voice path) leads via a group processor 6 for the subscriber A, a switching network 7 and a group processor 9 for the subscriber C.
  • the voice channel is then via a line 4 to the switching center 5 of the subscriber C. passed.
  • the signaling channel 10 is used by the group processor 6 for the subscriber A, the switching network 7, and the group processor 8 for the
  • Participant B in turn led through the switching network 7 and finally through the group processor 9 for the participant C.
  • the user channel (voice path) 11 does not pass through the group processor 8, which is assigned to the subscriber B, as a result of which resources are saved for this user channel.
  • switching calls with "virtual" resources are thus controlled.
  • the physical resources (user channel) relating to the service can be released for the service user (subscriber B) and, at the same time, the control options for this service can be retained individually for each subscriber. As stated, this is achieved by logically maintaining the connection to the service user regardless of resources.
  • the technology according to the invention manages without switching resources, such as a B channel, voice channel or call register.
  • resources such as a B channel, voice channel or call register.
  • virtual resources are used on a novel pseudo port.
  • the resources such as storage space, are minimized since no additional, unnecessary data storage is required.
  • the performance of the exchange 3 is expanded and at the same time a basis is laid for future extensions.
  • the technique according to the invention can be incarnated several times so that the services of subscriber B can be used several times.
  • the process according to the invention takes place entirely within the switching center 3, so that no signaling spanning the switching centers is required. No knowledge of the processes of the individual subscriber services is required, since these continue to be handled by the known utility programs. In principle, the technology according to the invention can therefore be used for several subscriber services.
  • the user channel and signaling channel connections run after the execution of the corresponding service, such as, for example, call diversion (call transfer). on different paths 10, 11 through the digital switching center 3.
  • the path 11 of the voice channel is reconfigured in the switching network 7, while the signaling channel continues to run via the group processor 8 with a new type of logical relationship between the group processors involved or the coordination processor assigned to subscriber B.
  • the controller 12 for executing the technology according to the invention will now be explained with reference to FIG. 2.
  • various subscribers, trunk lines (Trunc) and intelligent networks (IN) are connected to the controller 12.
  • trunk lines Trunc
  • intelligent networks IN
  • the subscriber programs which are responsible for the subscriber activating the service are replaced by the modified controller 12.
  • the other switching programs (for other subscribers, trunk lines, intelligent networks and the like) remain unchanged.
  • a reference by means of a pseudo port 14 is used instead of a real port reference.
  • a logical link 13 is created between the real port 15 and the pseudo port 14.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)

Abstract

L'invention concerne un procédé et un centre de commutation numérique destinés au transfert ou au réacheminement d'appels d'un réseau de télécommunication comprenant au moins un premier abonné (A), le centre de commutation numérique (3) et un autre abonné (C). Un appel est établi entre le premier abonné (A) et le centre de commutation numérique (3) par une voie de signalisation et une voie utile. On maintient seulement une liaison logique (13) entre l'abonné (B) qui est affecté au central de commutation (3) et le premier abonné (A), ce qui libère une ressource, par exemple, le canal utile. Des appels orientés commutation peuvent ainsi être commandés par des ressources virtuelles. Dans le central de commutation (3) qui demande le service, les ressources physiques (voie utile) concernant le service peuvent être libérées à l'attention de l'utilisation du service. Malgré cela, chaque abonné continue à disposer des possibilités de commande du service. A cet effet, la liaison est logiquement conservée en fonction des ressources.
PCT/DE1999/003653 1998-11-16 1999-11-16 Procede et centre de commutation numerique destines au transfert ou reacheminement d'appel Ceased WO2000030331A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99960909A EP1131941A1 (fr) 1998-11-16 1999-11-16 Procede et centre de commutation numerique destines au transfert ou reacheminement d'appel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19852791A DE19852791A1 (de) 1998-11-16 1998-11-16 Verfahren und digitale Vermittlungsstelle zur Umleitung oder Weitergabe von Anrufen
DE19852791.8 1998-11-16

Publications (1)

Publication Number Publication Date
WO2000030331A1 true WO2000030331A1 (fr) 2000-05-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1999/003653 Ceased WO2000030331A1 (fr) 1998-11-16 1999-11-16 Procede et centre de commutation numerique destines au transfert ou reacheminement d'appel

Country Status (3)

Country Link
EP (1) EP1131941A1 (fr)
DE (1) DE19852791A1 (fr)
WO (1) WO2000030331A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10345547A1 (de) * 2003-09-30 2005-04-28 Siemens Ag Verfahren und Vorrichtung zur Wegoptimierung in einem Datennetz

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723273A (en) * 1985-09-25 1988-02-02 American Telephone And Telegraph Company, At&T Bell Laboratories Discretionary call forwarding
EP0550975A2 (fr) * 1992-01-06 1993-07-14 AT&T Corp. Méthode pour rediriger un appel téléphonique à une destination alternative
EP0876041A2 (fr) * 1997-04-30 1998-11-04 Nortel Networks Corporation Schéma de remplacement de chemin amélioré

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4723273A (en) * 1985-09-25 1988-02-02 American Telephone And Telegraph Company, At&T Bell Laboratories Discretionary call forwarding
EP0550975A2 (fr) * 1992-01-06 1993-07-14 AT&T Corp. Méthode pour rediriger un appel téléphonique à une destination alternative
EP0876041A2 (fr) * 1997-04-30 1998-11-04 Nortel Networks Corporation Schéma de remplacement de chemin amélioré

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GELDER VAN J ET AL: "PRIVATE NETWORKING WITH SOPHO-TBX AND SOPHOS SYSTEMS", PHILIPS TELECOMMUNICATION REVIEW,NL,PHILIPS TELECOMMUNICATIE INDUSTRIE N.V. HILVERSUM, vol. 43, no. 4, 1 December 1985 (1985-12-01), pages 237 - 252, XP002032868 *

Also Published As

Publication number Publication date
EP1131941A1 (fr) 2001-09-12
DE19852791A1 (de) 2000-05-31

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