公开(公告)号：EP0857004A2

公开(公告)日：1998-08-05

申请号：EP98200262.8

申请日：1998-01-29

申请人： Koninklijke PTT Nederland N.V.

发明人： Benchellal, Azeddine

IPC分类号： H04Q11/04 ,  H04Q3/62

CPC分类号： H04Q11/0457 ,  H04M3/4234 ,  H04M15/00 ,  H04Q3/62 ,  H04Q11/0442 ,  H04Q2213/09 ,  H04Q2213/1309 ,  H04Q2213/13176 ,  H04Q2213/13209 ,  H04Q2213/1322 ,  H04Q2213/13224 ,  H04Q2213/13296 ,  H04Q2213/13384 ,  H04Q2213/136 ,  H04Q2213/176 ,  H04Q2213/22 ,  H04Q2213/384

摘要： System for connecting a remote user (1) to a PBX (3), via an ISDN (2). The remote user is connected to the PBX via the ISDN by making use of the ISDN PMBS (Packet Mode Bearer Service), via the signalling channel (D channel), and the X.25 network (9), via ISDN local exchanges (5) and packet handlers (3). Via said connection, (QSIG) signalling messages are exchanged between the remote user and the central network, whereby the remote user has the same possibilities as a terminal directly connected to the PBX network.

公开(公告)号：EP0741475A3

公开(公告)日：1999-05-26

申请号：EP95202682.1

申请日：1995-10-06

申请人： Koninklijke PTT Nederland N.V.

发明人： Benchellal, Azeddine

IPC分类号： H04L12/56

CPC分类号： H04L12/5602 ,  H04L2012/563 ,  H04L2012/5636 ,  H04L2012/5651

摘要： Communication system, capable for the transmission of datacells via virtual channels, with a priority code as well as a first tagging code, both being assignable to the datacells of such channel. The system comprising bandwidth control devices at network edges, for the enforcement of the allowed cellrate, such bandwidth control device admitting said datacells as long as the actual cellrate does not exceed said allowed cellrate, or, if the actual cellrate does exceed said allowed cellrate, admitting said datacells, however, after modifying its priority code into a lower priority code. For use in a bidirectional set of virtual channels, comprising a first, forward channel from a calling user to a called user and a second, backward channel from the called user to the calling user, a second tagging code is assignable to said datacells of the first channel, which second tagging code relates to said backward channel. In the octet 19.1 of the ATM Traffic Descriptor information element there are two spare bits, named Tf (Tagging Forward) and Tb (Tagging Backward), used for the tagging option. These two bits are coded in a special way, serving the purpose of locally enabling the tagging option along the whole bidirectional path.

公开(公告)号：EP0769882A1

公开(公告)日：1997-04-23

申请号：EP96202329.7

申请日：1996-08-21

申请人： Koninklijke PTT Nederland N.V.

发明人： Benchellal, Azeddine

IPC分类号： H04Q3/62 ,  H04M7/00

CPC分类号： H04Q11/0457 ,  H04M7/009 ,  H04Q3/62 ,  H04Q2213/13176 ,  H04Q2213/13204 ,  H04Q2213/13209 ,  H04Q2213/1322 ,  H04Q2213/13296 ,  H04Q2213/13384 ,  H04Q2213/13399

摘要： System for the transfer of signalling messages between public branch exchanges (PBXs), particularly where such PBXs are part of a virtual network (Virtual Private Network or VPN). Problem is that for carrying out supplementary services (and telephony), PBXs utilise a protocol (QSIG) which is not capable of co-operating with ISDN, so that it would not be possible to provide the supplementary services across the VPN. In order to be capable of exploring the possibilities of the public ISDN and no longer to have to use rented lines, it is now proposed for the transfer of the signalling traffic required for supplementary services to make use of the ISDN PMBS (Packet Mode Bearer Service). The signalling traffic originating from a source PBX is transferred, by way of the PMBS, to an X.25 Packet Handler (PH), subsequently by way of the X.25 network to a PH on the destination side, and there, by way of the ISDN PMBS, to the destination PBX.

摘要翻译： 用于在公共分支交换机（PBX）之间传送信令消息的系统，特别是在这样的PBX是虚拟网络（虚拟专用网或VPN）的一部分的情况下。 问题是，为了进行补充业务（和电话），PBX利用不能与ISDN协同工作的协议（QSIG），因此不可能通过VPN提供补充业务。 为了能够探索公共ISDN的可能性并且不再需要使用租用的线路，现在提出用于传送补充业务所需的信令业务以利用ISDN PMBS（分组模式承载业务 ）。 源自PBX的信令业务通过PMBS传输到X.25分组处理器（PH），随后通过X.25网络传送到目的地侧的PH，并且通过这种方式 的ISDN PMBS，到目的地PBX。

公开(公告)号：EP0741475A2

公开(公告)日：1996-11-06

申请号：EP95202682.1

申请日：1995-10-06

申请人： Koninklijke PTT Nederland N.V.

发明人： Benchellal, Azeddine

IPC分类号： H04L12/56

CPC分类号： H04L12/5602 ,  H04L2012/563 ,  H04L2012/5636 ,  H04L2012/5651

摘要： Communication system, capable for the transmission of datacells via virtual channels, with a priority code as well as a first tagging code, both being assignable to the datacells of such channel. The system comprising bandwidth control devices at network edges, for the enforcement of the allowed cellrate, such bandwidth control device admitting said datacells as long as the actual cellrate does not exceed said allowed cellrate, or, if the actual cellrate does exceed said allowed cellrate, admitting said datacells, however, after modifying its priority code into a lower priority code. For use in a bidirectional set of virtual channels, comprising a first, forward channel from a calling user to a called user and a second, backward channel from the called user to the calling user, a second tagging code is assignable to said datacells of the first channel, which second tagging code relates to said backward channel. In the octet 19.1 of the ATM Traffic Descriptor information element there are two spare bits, named Tf (Tagging Forward) and Tb (Tagging Backward), used for the tagging option. These two bits are coded in a special way, serving the purpose of locally enabling the tagging option along the whole bidirectional path.

摘要翻译： 通信系统能够通过虚拟信道传输数据单元，具有优先级代码以及第一标记代码，两者均可分配给这种信道的数据单元。 该系统包括在网络边缘处的带宽控制设备，用于执行允许的小区速率，这种带宽控制设备允许所述数据小区，只要实际小区速率不超过所述允许小区速率，或者如果实际小区速率超过所允许的小区速率， 然而，在将其优先级代码修改为较低优先权代码之后，允许所述数据单元。 为了在双向虚拟通道集中使用，包括从主叫用户到被叫用户的第一，前向信道和从被叫用户到主叫用户的第二反向信道，第二标记码可分配给 第一通道，该第二标记代码涉及所述反向通道。 在ATM流量描述符信息元素的八位字节19.1中，有两个备用位，称为Tf（标记向前）和Tb（Tagging Backward），用于标记选项。 这两个位以特殊方式编码，用于在整个双向路径上本地启用标记选项的目的。