WO2004006598A1 - Vermeidung eines fehlverhaltens einer vermittlungs-einrichtungs-steuerung (media gateway controller) oder vermittlungseinrichtung (media gateway) - Google Patents
Vermeidung eines fehlverhaltens einer vermittlungs-einrichtungs-steuerung (media gateway controller) oder vermittlungseinrichtung (media gateway) Download PDFInfo
- Publication number
- WO2004006598A1 WO2004006598A1 PCT/DE2003/002229 DE0302229W WO2004006598A1 WO 2004006598 A1 WO2004006598 A1 WO 2004006598A1 DE 0302229 W DE0302229 W DE 0302229W WO 2004006598 A1 WO2004006598 A1 WO 2004006598A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mgw
- termination
- terminations
- coding
- procedure
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0072—Speech codec negotiation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
-
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/12—Access point controller devices
Definitions
- the invention relates to methods and devices for changing the coding (at least) of a user data connection section termination at a media gateway from a media gateway controller to the media gateway.
- MGWs switching devices, in particular in a cellular mobile radio network or fixed network
- the protocol Q.1950 “Bearer independent Call Bearer Control Protocol” (CBC) is used together with the BICC protocol, Q.1902.4, also specified by the ITU-T. These protocols can also be used for 3GPP applications.
- Media gateways connect, among other things, user connection sections (for the transmission of user data such as voice, text, multimedia) of a telecommunications network and, if necessary, convert different encodings, for example voice encodings such as G.711 or 7AMR, into one another.
- user connection section termination or termination for short, is understood to mean the termination of a section of a user connection mediated by the MGW, for example for voice or multimedia (sound and image) on this MGW.
- the MGW sends and / or receives (user) data belonging to the user connection.
- the MGW sends and / or receives (user) data belonging to the user connection.
- the above-mentioned protocols make it possible to change existing user connections, for example by choosing a different coding.
- the signaling used here between MGC and MGW is such that each termination in the MGW is changed independently of the others within the MGW connected to it.
- deactivation of this termination on the MGW isolation of this termination on the MGW.
- the MGW must take immediate action when changing a termination, if this results in different codings for terminations (in the parlance of the protocols H.248 and Q.1950, terminations linked to each other within a MGW are in a so-called common "context") yield and these reciprocally implement, for example, by so-called transcoding.
- the encoding should be virtually 'changed at the same time all terminations linked in the MGW, which lie in the same "context", for example, in the context of so-called BICC "codec Modification "or” Codec Renegotiation "(see Q.1902.4), through which the coding of existing voice connections can be changed.
- the 3GPP also uses the BICC procedures mentioned in order to —be-s-feehende— u-fez-ve-rbi-ndu-ng-en —- zw-i Service -— (- den— utzda-feen-artren-) - Switch language and multimedia (ie a combination of language and image in a common coding).
- the MGC can recognize such situations on the basis of the so-called "call control" signaling it receives, for example Q 1902.4.
- the MGW Since the MGC is signaled to the MGW sequentially, all connected terminations within an MGW are switched almost simultaneously Here, possibly unwanted behavior: The MGW briefly activates a transcoder, which is then deactivated again almost immediately, which creates unnecessary workload in a MGW and reduces its throughput. It would be acceptable, but is currently not technically possible to interrupt the connection at short notice.
- the MGW may find that it cannot convert the new coding of this termination into the coding still used on the other termination (s), for example, if this happens between a voice connection and a multimedia connection or a general one Data connection is switched. The MGW therefore rejects in this case the change of the user connection via H.248 / Q.1950 signaling.
- the object of the present invention is to enable the most efficient possible switching of codes in terminations adjacent to a media gateway following an instruction to the media gateway, and to enable switching between codes which the media gateway cannot convert into one another.
- the object is achieved in each case by the subject matter of the independent claims.
- the media gateway uses the signaling in the BICC procedures "Codec Modification” and "Codec Re-Negotiation" according to Q.1902.4 and Q.1950 unchanged as previously specified, and also without the need to modify messages.
- the MGW's behavior according to the invention in response to incoming Q.1950 messages, on the other hand, deviates from the behavior previously specified in Q.1950.
- a media gateway controller that triggers the change of a user connection by means of the BICC procedures "Codec Modification” and “Codec Re-Negotiation” according to Q.1902.4 can trigger these procedures in the direction of all branches of the user connection converging in it.
- the synchronization of these separate procedures has not yet been specified in BICC.
- a suitable synchronization of the procedures in the MGC is also the subject of the invention. (Fig. 4: Messages 1 and 2 must be confirmed by the MGW before the MGC sends messages 3 and 3a)
- Q.1902.4 is used to adapt the procedures on the MGW differently than described in Q.1950 in such a way that the MGW only carries out the check for a necessary transcoding between the terminations in a context and the necessary activation of transcoders only at one point in time, where, in the event of a joint modification of several terminations, it has already received signaling from the MGC regarding the modification of all terminations. 2.
- the MGW uses the Q.1950 "Reserve Characteristics" procedure to cause the MGW to modify a termination, the MGW should only check and activate the transcoder when the MGC has modified the termination operated by the Q. 1950 "Confirm Characteristics" procedure for MGW.
- the MGW in the event that the MGC uses the Q.1950 "Reserve Characteristics" procedure to cause the MGW to modify a termination, the MGW should also carry out the verification and activation of the transcoder if the MGW has received a message for modifying the user connection from a switching node at the other end of a user connection section with termination in the same context, for example the Q.2630 “Modify Bearer” procedure.
- the MGW should check and activate of the transcoder even if the MGW has also received commands for modification via the Q.1950 "Reserve Characteristics” procedure or the Q.1950 "Modify Characteristics" procedure for all terminations in the same context.
- the MGW should only check and activate the transcoder when the switching node at the other end of the the user connection section corresponding to the termination signals that the ⁇ u-tz connection — modes-fi-zie-r - ⁇ - we-rden — so-ll- * - 6.
- the MGW should only check and activate the transcoder when the switching node at the other end of the the user connection section corresponding to the termination signals that the ⁇ u-tz connection — modes-fi-zie-r - ⁇ - we-rden — so-ll- * - 6.
- the MGW should also carry out the checking and activation of the transcoder, if the MGW for all terminations in the same context from the MGC also commands for modification via the Q.1950 "Reserve Characteristics” procedure or the Q.1950 "Modify Characteristics. Received procedure.
- the MGC should first use the Modify Characteristics procedure for all of these
- the MGW cannot re-establish the connections immediately after the check mentioned under 1, but only if, in addition, via separate signaling, for example the lu FP initialization specified in the 3GPP in TS 25.415 and 29.415, with the (MGW) switching node at the other ends of the connection to be reconnected
- the MGW cannot terminate the relevant termination immediately after receiving the
- the MGW may limit the period of time from the receipt of the first instruction to change a termination until the receipt of the instruction which triggers the check. If in this .Zei-tr-aum — ic tt— £ ür —- l-le — connected — Nu-tz-ve-r-formations- appropriate commands have been received, the MGW can re-establish the original connection of the user connections with the old coding.
- FIG. 1 shows the BICC and CBC message flow when switching a user connection from one coding to another
- Coding for the case of a pair of MGC and MGW which processes and passes on a modification of the coding of a user connection triggered by another switching node
- FIG. 2 shows the BICC and CBC message flow when switching a user connection from one coding to another coding for the case of a pair of MGC and MGW which processes a modification of the coding of a user connection triggered by another switching node but does not pass it on,
- FIG. 3 shows the BICC and CBC message flow when switching a user connection from one coding to another coding for the case of a pair of MGC and MGW, which itself triggers a modification of the coding of a user connection in the direction of a user connection section,
- Fig. 4 shows the BICC and CBC message flow when switching a user connection from one coding to another
- Coding in the case of a pair of MGC and MGW which is a modification of the coding of a user connection in the direction triggers two user connection sections connected by the MGW itself.
- Fig. 1 shows the BICC and CBC message flow in
- corresponding numbers indicate the chronological order of the messages. Messages in the areas delimited by rounded corners each refer to a corresponding termination. To simplify, they are
- the message flow is used according to the invention as follows: 1. Messages 2 (Q.1950 "Reserve Characteristics") and 5 (Q.1950 “Modify Characteristics”) are used unchanged as described in the protocols. The behavior on these messages changes fundamentally in the MGW. 2. After receipt of message 2, the MGW checks whether this message is the first instruction related to the corresponding “context” that requires a change in the coding. If this condition applies, the MGW deactivates all terminations associated with this termination and all Terminations in the same "context”. The message explicitly defines the desired new coding for the "context”. 3. Then (before sending the message 3) the MGW activates the termination B, ie sets it to the state sending and receiving user data.
- the MGW After receipt of message 5, or 7, or 9, the MGW checks whether a connection between terminations A and B is possible in the new coding. If this is not possible, the MGW sends a corresponding error message to 5 or 9 in the acknowledgment of receipt. The further error signaling is not shown here.
- the MGW reactivates the termination A using the new coding (in the case of using message 5 in point 4 only after receipt of the message 7) and thus "connects" the terminations A and B.
- Fig. 2 shows the BICC and CBC message flow in the UflisT2h ⁇ a ⁇ lT ⁇ e ⁇ r ⁇ ⁇ ⁇ e ⁇ ⁇ other coding.
- the BICC procedure "Codec Modification” is shown.
- the BICC procedure "Codec Renegotiation”, to which the present invention is also applicable, is shown.
- the MGW After receipt of message 2, the MGW checks whether this message is the first instruction related to the corresponding “context” that requires a change in the coding. If this condition applies, the MGW deactivates all terminations associated with this termination and all Terminations in the same "context". The message explicitly defines the — desired — new — code — for — the— ⁇ KOntrex ⁇ 3. Then (before sending message 3) the MGW activates termination B, ie sets it to the state sending and receiving user data. 4. After receipt of message 5, the MGW checks whether a connection between terminations A and B is possible in the new coding. If this is not possible, the MGW sends a corresponding error message in the acknowledgment of receipt 5. The further error signaling is not shown here. 5. Otherwise, the MGW inserts a transcoder, if necessary due to different coding at terminations A and B, and then activates the termination A again using the new coding and thus "connects" the terminations A and B.
- FIG. 3 shows the BICC and CBC message flow when switching a user connection from one coding to another coding.
- the case of a pair of MGC and MGW which triggers a modification of the coding of a user connection in the direction of a user connection section itself is shown.
- corresponding numbers indicate the chronological order of the messages. Messages in the areas delimited by rounded corners each refer to a corresponding termination. Messages 1 and 3 are each confirmed by an immediately following message in the opposite direction.
- FIG. 4 shows the BICC and CBC message flow when switching a user connection from one coding to another coding. The case of a pair of MGC and MGW which triggers a modification of the coding of a user connection in the direction of two user connection sections connected by the MGW is shown.
- Messages 3, 4, 5 and messages 3a, 4a, 5a are executed independently of the other message flow. Messages in the areas delimited by rounded corners each refer to a corresponding termination. To simplify matters, the message flows are only shown for two terminations involved. All other terminations within the connection must be handled analogously. The terminations are connected to each other within the MGW and are in the same "context”. Messages 1, 2, 4 and 4a are each confirmed in the opposite direction by a message immediately following.
- the BICC procedure "Codec Modification” is shown.
- the BICC procedure "Codec Renegotiation”, to which the present invention is also applicable, is shown.
- the MGW then activates termination A, i.e. puts them in the state sending and receiving user data.
- the MGW After receipt of message 2, or 4, or 4a, the MGW checks whether a connection between terminations A and B is possible in the new coding.
- the MGW activates termination B using the new coding (in the case of using
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Communication Control (AREA)
- Computer And Data Communications (AREA)
- Selective Calling Equipment (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003250295A AU2003250295A1 (en) | 2002-07-09 | 2003-07-03 | Avoidance of an invalid functioning of a media gateway controller or a media gateway |
KR1020057000395A KR100998828B1 (ko) | 2002-07-09 | 2003-07-03 | 미디어 게이트웨이 제어기 또는 미디어 게이트웨이의 기능 불량을 방지하는 방법 및 디바이스 |
DE50308144T DE50308144D1 (de) | 2002-07-09 | 2003-07-03 | Vermeidung eines fehlverhaltens einer vermittlungs-einrichtungs-steuerung (media gateway controller) oder vermittlungseinrichtung (media gateway) |
US10/520,630 US7680132B2 (en) | 2002-07-09 | 2003-07-03 | Avoiding malfunctions in media gateway controllers and/or media gateways |
EP03762449A EP1673955B1 (de) | 2002-07-09 | 2003-07-03 | Vermeidung eines fehlverhaltens einer vermittlungs-einrichtungs-steuerung (media gateway controller) oder vermittlungseinrichtung (media gateway) |
JP2004518437A JP4051373B2 (ja) | 2002-07-09 | 2003-07-03 | スイッチング装置制御部(メディア・ゲートウェイ・コントローラ)のエラー特性の回避またはスイッチング装置(メディア・ゲートウェイ) |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10231026A DE10231026A1 (de) | 2002-07-09 | 2002-07-09 | Vermeidung eines Fehlverhaltens einer Vermittlungseinrichtungs-Steuerung (Media Gateway Controller) oder Vermittlungseinrichtung (Media Gateway) bei einem Wechsel des Nutzlasttyp in bestehenden Verbindungen |
DE10231026.2 | 2002-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004006598A1 true WO2004006598A1 (de) | 2004-01-15 |
Family
ID=30009868
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/002229 WO2004006598A1 (de) | 2002-07-09 | 2003-07-03 | Vermeidung eines fehlverhaltens einer vermittlungs-einrichtungs-steuerung (media gateway controller) oder vermittlungseinrichtung (media gateway) |
Country Status (10)
Country | Link |
---|---|
US (1) | US7680132B2 (de) |
EP (1) | EP1673955B1 (de) |
JP (1) | JP4051373B2 (de) |
KR (1) | KR100998828B1 (de) |
CN (1) | CN100364343C (de) |
AT (1) | ATE372647T1 (de) |
AU (1) | AU2003250295A1 (de) |
DE (2) | DE10231026A1 (de) |
ES (1) | ES2291687T3 (de) |
WO (1) | WO2004006598A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008512906A (ja) * | 2005-04-29 | 2008-04-24 | フアウェイジシュヨウシアンゴンシ | Ipドメイン間の相互接続を構成する方法、システムおよび装置 |
CN101242458B (zh) * | 2007-02-08 | 2012-04-18 | 日本电气株式会社 | 媒体网关及其控制方法 |
CN101098340B (zh) * | 2007-06-08 | 2012-05-23 | 中兴通讯股份有限公司 | 一种实现h.248消息兼容的方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10231027B3 (de) * | 2002-07-09 | 2004-03-18 | Siemens Ag | Vermeidung von Transcodierung oder Abbruch bei Nutzlastcodierungswechsel in bestehenden Verbindungen |
CN1275419C (zh) * | 2002-10-18 | 2006-09-13 | 华为技术有限公司 | 一种网络安全认证方法 |
CN1921478B (zh) * | 2005-08-26 | 2011-09-14 | 华为技术有限公司 | 基于网际协议的业务信号传输方法 |
CN1964365B (zh) * | 2005-11-11 | 2011-06-22 | 华为技术有限公司 | 一种切换媒体网关中终端状态的方法 |
CN100450116C (zh) * | 2006-06-26 | 2009-01-07 | 华为技术有限公司 | 一种指示媒体网关执行终端连接的方法 |
ES2509349T3 (es) * | 2006-06-26 | 2014-10-17 | Huawei Technologies Co., Ltd. | Método y sistema y dispositivo para dar instrucciones a una pasarela de medios para establecer conexiones entre terminales |
US9473644B2 (en) * | 2006-08-11 | 2016-10-18 | Genband Us Llc | Methods, systems, and computer program products for hairpin condition elimination in a telecommunications network |
JP5018658B2 (ja) * | 2008-06-11 | 2012-09-05 | 富士通株式会社 | パス制御装置およびパス接続方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001006800A1 (en) * | 1999-07-19 | 2001-01-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Implementation of call setup procedures with separation of call control and bearer control |
WO2003024052A1 (en) * | 2001-09-06 | 2003-03-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Decomposed switching node and method of operating the same |
US20030099227A1 (en) * | 2001-11-24 | 2003-05-29 | Lg Electronics Inc. | Call control method between a packet network and PSTNs in the next generation network |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5878347A (en) * | 1996-03-26 | 1999-03-02 | Ericsson, Inc. | Routing a data signal to a mobile station within a telecommunications network |
AU2001261221A1 (en) * | 2000-05-04 | 2001-11-12 | Nortel Networks Limited | Method and apparatus for negotiating bearer control parameters using property sets |
-
2002
- 2002-07-09 DE DE10231026A patent/DE10231026A1/de not_active Ceased
-
2003
- 2003-07-03 JP JP2004518437A patent/JP4051373B2/ja not_active Expired - Fee Related
- 2003-07-03 WO PCT/DE2003/002229 patent/WO2004006598A1/de active IP Right Grant
- 2003-07-03 CN CNB038162458A patent/CN100364343C/zh not_active Expired - Fee Related
- 2003-07-03 KR KR1020057000395A patent/KR100998828B1/ko not_active IP Right Cessation
- 2003-07-03 US US10/520,630 patent/US7680132B2/en not_active Expired - Fee Related
- 2003-07-03 EP EP03762449A patent/EP1673955B1/de not_active Expired - Lifetime
- 2003-07-03 DE DE50308144T patent/DE50308144D1/de not_active Expired - Lifetime
- 2003-07-03 AU AU2003250295A patent/AU2003250295A1/en not_active Abandoned
- 2003-07-03 ES ES03762449T patent/ES2291687T3/es not_active Expired - Lifetime
- 2003-07-03 AT AT03762449T patent/ATE372647T1/de active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001006800A1 (en) * | 1999-07-19 | 2001-01-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Implementation of call setup procedures with separation of call control and bearer control |
WO2003024052A1 (en) * | 2001-09-06 | 2003-03-20 | Telefonaktiebolaget Lm Ericsson (Publ) | Decomposed switching node and method of operating the same |
US20030099227A1 (en) * | 2001-11-24 | 2003-05-29 | Lg Electronics Inc. | Call control method between a packet network and PSTNs in the next generation network |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008512906A (ja) * | 2005-04-29 | 2008-04-24 | フアウェイジシュヨウシアンゴンシ | Ipドメイン間の相互接続を構成する方法、システムおよび装置 |
JP4937913B2 (ja) * | 2005-04-29 | 2012-05-23 | ホアウェイ・テクノロジーズ・カンパニー・リミテッド | Ipドメイン間の相互接続を構成する方法、システムおよび装置 |
US9525583B2 (en) | 2005-04-29 | 2016-12-20 | Huawei Technologies Co., Ltd. | Method, system and device for implementing interconnection between IP domains |
CN101242458B (zh) * | 2007-02-08 | 2012-04-18 | 日本电气株式会社 | 媒体网关及其控制方法 |
CN101098340B (zh) * | 2007-06-08 | 2012-05-23 | 中兴通讯股份有限公司 | 一种实现h.248消息兼容的方法 |
Also Published As
Publication number | Publication date |
---|---|
US20060153205A1 (en) | 2006-07-13 |
EP1673955B1 (de) | 2007-09-05 |
DE10231026A1 (de) | 2004-02-05 |
EP1673955A1 (de) | 2006-06-28 |
KR100998828B1 (ko) | 2010-12-06 |
AU2003250295A1 (en) | 2004-01-23 |
US7680132B2 (en) | 2010-03-16 |
DE50308144D1 (de) | 2007-10-18 |
KR20050018971A (ko) | 2005-02-28 |
CN100364343C (zh) | 2008-01-23 |
CN1666549A (zh) | 2005-09-07 |
JP4051373B2 (ja) | 2008-02-20 |
ATE372647T1 (de) | 2007-09-15 |
JP2005537700A (ja) | 2005-12-08 |
ES2291687T3 (es) | 2008-03-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60314397T2 (de) | Überbrückung von transkodierungsoperationen in einem kommunikationnetz | |
WO2004006598A1 (de) | Vermeidung eines fehlverhaltens einer vermittlungs-einrichtungs-steuerung (media gateway controller) oder vermittlungseinrichtung (media gateway) | |
DE60225577T2 (de) | Setzen des kommunikationsmodus | |
EP1586209B1 (de) | Vermeidung von transcodierung oder abbruch bei nutzlastcodierungswechsel in bestehenden verbindungen | |
EP1705889B1 (de) | Verfahren zum schnellen Aufbauen einer Nutzdatenverbindung zwischen Kommunikationsendeinrichtungen | |
EP1897321A1 (de) | Verfahren zur steuerung des leistungsmerkmals "sip call-transfer" | |
EP1236372B1 (de) | Verfahren zum betreiben eines mobilfunknetzes | |
EP2359540B1 (de) | Verfahren zum anschluss von netzsegmenten mit redundanzeigenschaften an ein beliebiges netzwerk | |
WO2008011901A1 (de) | Verfahren zum durchführen einer sprachkonferenz und sprachkonferenzsystem | |
EP1514433B1 (de) | Verfahren zur verbindungssteuerung in einem paketorientierten kommunikationsnetz sowie anordnungen zu seiner durchführung | |
WO2005104582A1 (de) | Codec-modus-konfigurationsauswahl bei transcoderfreien operationen | |
DE10053213A1 (de) | Verfahren zum Übertragen digitaler Daten über mehrere Datenübertragungsnetze, zugehörige Einheiten und zugehöriges Programm | |
DE10131533A1 (de) | Fehlertoleranter Verbindungstest | |
EP3036862B1 (de) | Verfahren zum betreiben eines netzwerks und netzwerkteilnehmer | |
DE4207563C1 (de) | ||
EP1286508A1 (de) | Verfahren zur Übergabe eines Anrufs zwichen einem Telekommunikationsnetzwerk und einem Datennetzwerk | |
EP1955567B1 (de) | Verfahren zum wechsel von zumindest einem ersten kommunikationsdienst auf zumindest einen zweiten kommunikationsdienst zur übertragung von unterschiedlichen dateninhalten | |
WO2004047470A1 (de) | Übermittlung von sprachdaten in einem mobilfunknetz bestehend aus einem funkzugangsnetz und einem vermittlungsnetz | |
WO2004040925A1 (de) | Verfahren zur mobilfunkübertragung | |
WO2003061315A1 (de) | Bandbreiteneffiziente übertragung komprimierter sprache zwischen vermittelungsstellen in gsm netzen ohne zusätzlichen qualitätsverlust | |
EP2309711A1 (de) | Verfahren und Einrichtung zur Verbindungsauslösung in Telekommunikationsnetzen | |
WO2004082254A1 (de) | Netzwerkanordnung und transcodierserver für kommunikationsnetze | |
EP1377004A1 (de) | Verfahren zum Aufbau einer Konferenzschaltung zwischen mehreren Teilnehmerendgeräten eines Kommunikationsnetzwerkes | |
DE10008452A1 (de) | Wandler für unterschiedliche Telekommunationsschnittstellen einer Telekommunikationsanlage | |
DE102006017849A1 (de) | Verfahren zum Herstellen einer Kommunikationsverbindung, hierfür geeignete Vermittlungsvorrichtung, sowie System zum Herstellen einer Kommunikationsverbindung, Datenträger zum Speichern eines Computerprogramms sowie Verwendung des Datenträgers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003762449 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004518437 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020057000395 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 20038162458 Country of ref document: CN |
|
WWP | Wipo information: published in national office |
Ref document number: 1020057000395 Country of ref document: KR |
|
ENP | Entry into the national phase |
Ref document number: 2006153205 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10520630 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2003762449 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 10520630 Country of ref document: US |
|
WWG | Wipo information: grant in national office |
Ref document number: 2003762449 Country of ref document: EP |