H04QSELECTING switches, relays, selectors H01H; wireless communication networks H04WThis subclass covers: methods, circuits, or apparatus for stablishing selectively a connect ion between a desired number of stations (normally two), or between a main station and a desired number of substations (normally one) for the purpose of transferring information via this connection after it has been established; selective calling arrangements over connections already established. In either case, the connection may be made by means of electric conductors or electromagnetic waves.In this subclass, the following terms or expressions are used with the meanings indicated: "subscriber" is a general term for terminal equipment, e.g. telephone for public use;"substation" means a subscriber or monitoring equipment which may connect a single subscriber to a line without choice as to subscriber; "satellite" is a kind of exchange the operation of which depends upon control signals received from a supervisory exchange;"switching centres" includes exchanges and satellites.In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme. H04Q1/00 H04Q1/00Details of selecting apparatus or arrangements H04Q1/02Constructional details H04Q1/021using pivoting mechanisms for accessing the interior of the apparatus H04Q1/023using sliding mechanisms for accessing the interior of the apparatus H04Q1/025Cabinets H04Q1/026characterized by door details H04Q1/028Subscriber network interface devices H04Q1/03Power distribution arrangements H04Q1/032power failure protection H04Q1/035Cooling of active equipments, e.g. air ducts H04Q1/04Frames or mounting racks for selector switchesAccessories therefor, e.g. frame cover H04Q1/06Cable ducts or mountings specially adapted for exchange installations H04Q1/062vertical management arrangements H04Q1/064horizontal management arrangements H04Q1/066arranged on the front side H04Q1/068arranged on the rear side H04Q1/08Frames or mounting racks for relaysAccessories therefor H04Q1/09Frames or mounting racks not otherwise provided for H04Q1/10Exchange station construction H04Q1/11Protection against environment H04Q1/112mechanical protection, e.g. resistance to earthquakes H04Q1/114flooding protection, e.g. using water proof provision H04Q1/116lightning or EMI protection, e.g. shielding or grounding H04Q1/118heat or sun protection H04Q1/12Arrangements of multiple bars with or without pivotable frames H04Q1/13Patch panels for monitoring, interconnecting or testing circuits, e.g. patch bay, patch field or jack field; Patching modules H04Q1/131being pivotable H04Q1/133being slidable H04Q1/135characterized by patch cord details H04Q1/136having patch field management or physical layer management arrangements H04Q1/138using RFID H04Q1/14Distribution frames H04Q1/141Details of connexions between cable and distribution frame H04Q1/142Terminal blocks for distribution frames H04Q1/143with contacts on circular surface H04Q1/144Plugs used in distribution frames H04Q1/145with switches arranged in a matrix configuration H04Q1/146with line protection means H04Q1/147using robots for distributing H04Q1/148Identification strips for distribution frames H04Q1/149Wireguides in connector blocks H04Q1/15Backplane arrangements H04Q1/155characterised by connection features H04Q1/16Wiring arrangements for selector switches or relays in frames H04Q1/18Electrical details H04Q1/20Testing circuits or apparatusCircuits or apparatus for detecting, indicating, or signalling faults or troubles H04Q1/22Automatic arrangements H04Q1/24for connection devices H04Q1/245in time-division multiplex systems H04Q1/26for signalling trouble in unoccupied sub-exchanges H04Q1/28Current-supply circuits or arrangements for selection equipment at exchanges H04Q1/30Signalling arrangementsManipulation of signalling currents multiplex systems providing for calling or supervisory signals H04J1/14, H04J3/12 H04Q1/32using trains of dc pulses H04Q1/39 takes precedence H04Q1/34Impulse regenerators with mechanical or other non-electrical marking arrangements H04Q1/36Pulse-correcting arrangements, e.g. for reducing effects due to interference H04Q1/38using combinations of direct currents of different amplitudes or polarities over line conductors or combination of line conductors H04Q1/39using coded pulse groups H04Q1/40whereby duration of pulse or interval between two pulses is variable H04Q1/42involving the position of a pulse in a cycle H04Q1/44using alternate current H04Q1/50 takes precedence H04Q1/442with out-of-voice band signalling frequencies H04Q1/4423using one signalling frequency H04Q1/4426using two or more signalling frequencies, transmitted in succession or simultaneously H04Q1/444with voice-band signalling frequencies H04Q1/446using one signalling frequency H04Q1/46 takes precedence H04Q1/4465the same frequency being used for all signalling information, e.g. A.C. nr.9 system H04Q1/448with conversion of a single frequency signal into a digital signal H04Q1/4485which is transmitted in digital form H04Q1/45using multi-frequency signalling H04Q1/46 takes precedence H04Q1/453in which m-out-of-n signalling frequencies are transmitted H04Q1/4535with an additional signal transmitted for voice protection H04Q1/457with conversion of multifrequency signals into digital signals H04Q1/4575which are transmitted in digital form H04Q1/46comprising means for distinguishing between a signalling current of predetermined frequency and a complex current containing that frequency, e.g. speech current H04Q1/48Induced-current signalling arrangements H04Q1/50Conversion between different kinds of signals H04Q1/54Amplifier switched-on automatically in dependence on automatically-selected lines H04Q1/56Balancing circuitry switched-on automatically in dependence on automatically-selected lines H04Q3/00Selecting arrangements H04Q5/00 - H04Q11/00 take precedence H04Q3/0004using crossbar selectors in the switching stages H04Q3/0008using relay selectors in the switching stages H04Q3/0012in which the relays are arranged in a matrix configuration H04Q3/0016Arrangements providing connection between exchanges H04Q3/002Details H04Q3/0025Provisions for signalling H04Q3/0029Provisions for intelligent networking H04Q3/0033customer-controlled H04Q3/0037involving call modelling techniques, e.g. modifications to the basic call state model [BCSM] H04Q3/0041involving techniques for avoiding interaction of call service features H04Q3/0045involving hybrid, i.e. a mixture of public and private, or multi-vendor systems H04Q3/005Personal communication services, e.g. provisions for portability of subscriber numbers H04Q3/0054Service creation techniques H04Q3/0058using service-independent building blocks (SIBBs) or "primitives" H04Q3/0062Provisions for network management H04Q3/0066Bandwidth allocation or management H04Q3/007customer-controlled H04Q3/0075Fault management techniques H04Q3/0079involving restoration of networks, e.g. disaster recovery, self-healing networks H04Q3/0083Network planning or design; Modelling of planned or existing networks H04Q3/0087Network testing or monitoring arrangements H04Q3/0091Congestion or overload control H04Q3/0095Specification, development or application of network management software, e.g. software re-use H04Q3/02Circuit arrangements for selectors responsive to a permutation code H04Q3/04Circuit arrangements for receivers of routing digits H04Q3/06for group or trunk group selectors H04Q3/08for local or long-distance selectors H04Q3/10for PBX selectors, i.e. private branch exchange selectors H04Q3/12for line selectors providing transfer of routing digits H04Q3/14for two-way operation selectors H04Q3/16for marking-switches H04Q3/18Circuit arrangements for first stage of hunting switching H04Q3/20for preselectors H04Q3/22comprising common calling and disconnecting circuit H04Q3/24for line finders H04Q3/26comprising common calling and disconnecting circuit H04Q3/28comprising main groups and subgroups H04Q3/30Selector finders, i.e. allotters H04Q3/32Circuit arrangements for second or subsequent stages of hunting switching H04Q3/34for the second preselection stage H04Q3/36for the second line-finder stage H04Q3/38for stages after the group selector stage H04Q3/40for stages after the line selector, e.g. for extension selector H04Q3/42Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker H04Q3/44using revertive control H04Q3/46using signals other than revertive impulses H04Q3/47using translators H04Q3/48using markers H04Q3/49for end-to-end marking H04Q3/495for routing connecting paths H04Q3/52using static devices in switching stages, e.g. electronic switching arrangements H04Q3/521using semiconductors in the switching stages H04Q3/523Details H04Q3/525using tubes in the switching stages H04Q3/526Optical switching systems H04Q3/528Details H04Q3/54in which the logic circuitry controlling the exchange is centralised H04Q3/542Logic circuits or arrangements therefor H04Q3/545using a stored programme H04Q3/54508Configuration, initialisation H04Q3/54516Initialization, software or data downloading G06F9/445 takes precedence H04Q3/54525Features introduction H04Q3/54533Configuration data, translation, passwords, databases H04Q3/54541using multi-processor systems H04Q3/5455Multi-processor, parallelism, distributed systems H04Q3/54558Redundancy, stand-by H04Q3/54566Intelligent peripherals, adjunct processors H04Q3/54575Software application H04Q3/54583Software development, e.g. procedural, object oriented, software generation, software testing H04Q3/54591Supervision, e.g. fault localisation, traffic measurements, avoiding errors, failure recovery, monitoring, statistical analysis H04Q3/55using wired logic circuitry H04Q3/552Wired circuits or arrangements therefor H04Q3/555being comprised by electro-magnetic devices H04Q3/56in which the control signals are multiplexed H04Q3/58Arrangements providing connection between main exchange and sub-exchange or satellite H04Q3/60for connecting to satellites or concentrators which connect one or more exchange lines with a group of local lines H04Q3/602Circuit arrangements therefor H04Q3/605Arrangements in the satellite or concentrator H04Q3/607Details H04Q3/62for connecting to private branch exchanges H04Q3/622Circuit arrangements therefor H04Q3/625Arrangements in the private branch exchange H04Q3/627Details H04Q3/64Distributing or queueing H04Q3/645Circuit arrangements therefor H04Q3/66Traffic distributors H04Q3/665Circuit arrangements therefor H04Q3/68Grouping or interlacing selector groups or stages H04Q3/685Circuit arrangements therefor H04Q3/70Identification of class of calling subscriber H04Q3/72Finding out and indicating number of calling subscriber H04Q3/74Identification of subscriber calling from a party-line H04Q3/76Translation from the called subscriber's number to the outgoing or incoming control information H04Q3/78Temporary storage of information of calling or called subscriber intermediate storage means for telegraphic communication H04L13/08 H04Q5/00Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange H04Q5/02with direct connection for all subscribers, i.e. party-line systems H04Q5/24 takes precedence H04Q5/04Signalling by currents in one or other or both line wires or additional wires H04Q5/06Signalling by amplitude or polarity of dc H04Q5/08Signalling by continuous ac H04Q5/10using single frequencies for different subscribers H04Q5/12using combinations of frequencies H04Q5/14Signalling by pulses H04Q5/16by predetermined number of pulses H04Q5/18with indirect connection, i.e. through subordinate switching centre H04Q5/20the subordinate centre permitting interconnection of subscribers connected thereto H04Q5/22the subordinate centre not permitting interconnection of subscribers connected thereto H04Q5/24for two-party-line systems H04Q5/245Circuit arrangements in which for one subscriber low frequency speech and/or signalling signals proceed on the line, while for the other subscriber the low frequency speech and/or signalling signals are modulated upon a high frequency carrier signal H04Q9/00Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/02Automatically-operated arrangements H04Q9/04Arrangements for synchronous operation H04Q9/06Calling by using amplitude or polarity of dc H04Q9/08Calling by using continuous ac H04Q9/10using single different frequencies H04Q9/12using combinations of frequencies H04Q9/14Calling by using pulses H04Q9/16by predetermined number of pulses H04Q11/00Selecting arrangements for multiplex systems multiplex systems H04J H04Q11/0001using optical switching H04Q11/0003Details H04Q11/0005Switch and router aspects H04Q2011/0007Construction H04Q2011/0009using wavelength filters H04Q2011/0011using wavelength conversion H04Q2011/0013using gating amplifiers H04Q2011/0015using splitting combining H04Q2011/0016using wavelength multiplexing or demultiplexing H04Q2011/0018using tunable transmitters or receivers H04Q2011/002using optical delay lines or optical buffers or optical recirculation H04Q2011/0022using fibre gratings H04Q2011/0024using space switching H04Q2011/0026using free space propagation (e.g. lenses, mirrors) H04Q2011/0028using holograms H04Q2011/003using switches based on microelectro-mechanical systems [MEMS] H04Q2011/0032using static wavelength routers (e.g. arrayed waveguide grating router [AWGR] ) H04Q2011/0033using time division switching H04Q2011/0035using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical H04Q2011/0037Operation H04Q2011/0039Electrical control H04Q2011/0041Optical control H04Q2011/0043Fault tolerance H04Q2011/0045Synchronisation H04Q2011/0047Broadcast; Multicast H04Q2011/0049Crosstalk reduction; Noise; Power budget H04Q2011/005Arbitration and scheduling H04Q2011/0052Interconnection of switches H04Q2011/0054Distribute-route H04Q2011/0056Clos H04Q2011/0058Crossbar; Matrix H04Q2011/006Full mesh H04Q11/0062Network aspects H04Q2011/0064Arbitration, scheduling or medium access control aspects H04Q11/0066Provisions for optical burst or packet networks H04Q11/0067Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring H04Q2011/0069using dedicated optical channels H04Q11/0071Provisions for the electrical-optical layer interface H04Q2011/0073Provisions for forwarding or routing, e.g. lookup tables H04Q2011/0075Wavelength grouping or hierarchical aspects H04Q2011/0077Labelling aspects, e.g. multiprotocol label switching [MPLS], G-MPLS, MPAS H04Q2011/0079Operation or maintenance aspects H04Q2011/0081Fault tolerance; Redundancy; Recovery; Reconfigurability H04Q2011/0083Testing; Monitoring H04Q2011/0084Quality of service aspects H04Q2011/0086Network resource allocation, dimensioning or optimisation H04Q2011/0088Signalling aspects H04Q2011/009Topology aspects H04Q2011/0092Ring H04Q2011/0094Star H04Q2011/0096Tree H04Q2011/0098Mesh H04Q11/02for frequency-division multiplexing H04Q11/0001 takes precedence H04Q11/023using a stored programme control H04Q11/026Details H04Q11/04for time-division multiplexing H04Q11/0001 takes precedence H04Q11/0407using a stored programme control H04Q11/0414Details H04Q11/0421Circuit arrangements therefor H04Q11/0428Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals H04Q11/0435Details H04Q11/0442Exchange access circuits H04Q11/045Selection or connection testing arrangements H04Q11/0457Connection protocols H04Q11/0464Primary rate access circuits H04Q11/0471Terminal access circuits H04Q11/0478Provisions for broadband connections H04Q11/0485Circuit arrangements therefor H04Q11/0492Details H04Q11/06Time-space-time switching H04Q11/08Time only switching H04Q2201/00 H04Q2201/00Constructional details of selecting arrangements H04Q2201/02Details of frames H04Q2201/04Modular construction H04Q2201/06Cooling arrangements H04Q2201/08Pivotable parts H04Q2201/10Housing details H04Q2201/12Printed circuits H04Q2201/14Screening, grounding or crosstalk reduction details H04Q2201/16Coaxial cable connectors H04Q2201/18Rails H04Q2201/80in specific systems H04Q2201/802in data transmission systems H04Q2201/804in optical transmission systems H04Q2201/806in PBX or KTS systems H04Q2201/808in wireless transmission systems H04Q2209/00Arrangements in telecontrol or telemetry systems H04Q2209/10using a centralized architecture H04Q2209/20using a distributed architecture H04Q2209/25using a mesh network, e.g. a public urban network such as public lighting, bus stops or traffic lights H04Q2209/30using a wired architecture H04Q2209/40using a wireless architecture H04Q2209/43using wireless personal area networks [WPAN], e.g. 802.15, 802.15.1, 802.15.4, Bluetooth or ZigBee H04Q2209/47using RFID associated with sensors H04Q2209/50using a mobile data collecting device, e.g. walk by or drive by H04Q2209/60for transmitting utility meters data, i.e. transmission of data from the reader of the utility meter H04Q2209/70Arrangements in the main station, i.e. central controller H04Q2209/75by polling or interrogating the sub-stations H04Q2209/753where the polling of the sub-stations is synchronous H04Q2209/756where the polling of the sub-stations is cyclic, e.g. round-robin H04Q2209/80Arrangements in the sub-station, i.e. sensing device H04Q2209/82where the sensing device takes the initiative of sending data H04Q2209/823where the data is sent when the measured values exceed a threshold, e.g. sending an alarm H04Q2209/826where the data is sent periodically H04Q2209/84Measuring functions H04Q2209/845where the measuring is synchronized between sensing devices H04Q2209/86Performing a diagnostic of the sensing device H04Q2209/88Providing power supply at the sub-station H04Q2209/883where the sensing device enters an active or inactive mode H04Q2209/886using energy harvesting, e.g. solar, wind or mechanical H04Q2213/00Indexing scheme relating to selecting arrangements in general and for multiplex systems H04Q2213/001Motorselectors H04Q2213/002Graphical representation H04Q2213/003Constructional details H04Q2213/011Periodic optical structures, e.g. gratings, holograms H04Q2213/012Tunable opticalo systems H04Q2213/013Optical shutters, e.g. LCD arrays H04Q2213/014Optical storage, not delay lines H04Q2213/0153D-optical arrangement H04Q2213/016Optical subcarrier modulation H04Q2213/017Optical polarisation H04Q2213/02Relay switches H04Q2213/03PAM H04Q2213/031PCM H04Q2213/032Delta modulation H04Q2213/033Other modulation methods H04Q2213/034CodecPCM compression H04Q2213/036Series parallel conversionParallel bit transmission H04Q2213/037Resonant transferSample and hold H04Q2213/038Optical modulation H04Q2213/04Coordinate switchesCrossbar switches H04Q2213/042Elements placed in matrix relation, not serving as connection switch H04Q2213/046Binary switch (Beta element) H04Q2213/05Software aspects H04Q2213/052Multi-tasking H04Q2213/053Priority levels H04Q2213/054Expert systems, e.g. neural networks H04Q2213/055Linked lists H04Q2213/056Software routines, e.g. finite state machines H04Q2213/058IRQ H04Q2213/061PreselectorSecond line switch H04Q2213/062Finder switch (e.g. line finder, call finder) H04Q2213/063Strowger-switch as finder switch H04Q2213/064Cascaded finder or preselector switches H04Q2213/065Group selector H04Q2213/066Switch with two or more wipersets H04Q2213/067Finder switch serving as final selector H04Q2213/068Final selector H04Q2213/069Panel switches H04Q2213/07Call distributionCall detectionCall signalling by common apparatus H04Q2213/072Sequence circuits H04Q2213/076Distributing frameCross connect H04Q2213/08Power supply H04Q2213/082Phantom circuits H04Q2213/09Subscriber related equipmentAnalog terminal H04Q2213/091Indication of kind/number of subscriber H04Q2213/092Scanning of (subscriber) lines, registers, translators H04Q2213/093Personal computer H04Q2213/094Range extender H04Q2213/095User accessPIN code H04Q2213/096Digital subscriber terminal H04Q2213/097Numbering H04Q2213/098Mobile subscriber H04Q2213/099Loop multiplexer (not ISDN BRI/PRI; not 381), e.g. loop splitter H04Q2213/10Register H04Q2213/101Discriminating selectors H04Q2213/102Common translator H04Q2213/103Memories H04Q2213/104Central controlComputer control H04Q2213/106MicrocomputerMicroprocessor H04Q2213/107Control equipment for part of the connection H04Q2213/109InitialisingDownloading of parameters or program routines H04Q2213/11Sequence switches H04Q2213/12Call indicator, e.g. number indicator H04Q2213/121Marker H04Q2213/124Pulse distributor H04Q2213/13Charging H04Q2213/13001Step by step switches H04Q2213/13003Constructional details of switching devices H04Q2213/1301Optical transmission, optical switches H04Q2213/13012Hybrid fiber coax, HFC H04Q2213/13016Optical subcarrier modulation H04Q2213/1302Relay switches H04Q2213/1303Pulse amplitude modulation, PAM H04Q2213/13031Pulse code modulation, PCM H04Q2213/13034A/D conversion, code compression/expansion H04Q2213/13036Serial/parallel conversion, parallel bit transmission H04Q2213/13038Optical modulation H04Q2213/13039Asymmetrical two-way transmission, e.g. ADSL, HDSL H04Q2213/1304Coordinate switches, crossbar, 4/2 with relays, coupling field H04Q2213/13046Binary switch, β-element H04Q2213/1305Software aspects H04Q2213/13051Software generation H04Q2213/13052Multitasking H04Q2213/13053Priority levels H04Q2213/13054Expert system H04Q2213/13056Routines, finite state machines H04Q2213/13057Object-oriented software H04Q2213/13058Interrupt request H04Q2213/1307Call setup H04Q2213/13072Sequence circuits for call signaling, ACD systems H04Q2213/13076Distributing frame, MDF, cross-connect switch H04Q2213/1308Power supply H04Q2213/13082Power supply via phantom line H04Q2213/1309Apparatus individually associated with a subscriber line, line circuits H04Q2213/13091CLI, identification of calling line H04Q2213/13092Scanning of subscriber lines, monitoring H04Q2213/13093Personal computer, PC H04Q2213/13094Range extender H04Q2213/13095PIN / Access code, authentication H04Q2213/13096Digital apparatus individually associated with a subscriber line, digital line circuits H04Q2213/13097Numbering, addressing H04Q2213/13098Mobile subscriber H04Q2213/13099Loop multiplexer H04Q2213/131Register H04Q2213/13102Common translator H04Q2213/13103Memory H04Q2213/13104Central control, computer control H04Q2213/13106Microprocessor, CPU H04Q2213/13107Control equipment for a part of the connection, distributed control, co-processing H04Q2213/13109Initializing, personal profile H04Q2213/13121Marker H04Q2213/13124Pulse distributor H04Q2213/1313Metering, billing H04Q2213/13134Coin boxes, payphone, prepaid H04Q2213/13136Collect call information service H04Q2213/13376 H04Q2213/13138Least cost routing, LCR H04Q2213/13139Fraud detection/prevention H04Q2213/13141Hunting for free outlet, circuit or channel H04Q2213/13144Searching path through number of switching stages or nodes, e.g. revertive blocking H04Q2213/13145Rerouting upon failure H04Q2213/13146Rerouting upon blocking/overload, rearrangement H04Q2213/13148Maximum profit routing H04Q2213/13149Change of provider, e.g. network or service H04Q2213/1315Call waiting H04Q2213/13152Callback H04Q2213/13156Automatic digit redialling, automatic call retry H04Q2213/1316Service observation, testing H04Q2213/13162Fault indication and localisation H04Q2213/13163Fault alarm H04Q2213/13164Traffic (registration, measurement,...) H04Q2213/13166Fault prevention H04Q2213/13167Redundant apparatus H04Q2213/13168Error Correction H04Q2213/13172Supervisory signals H04Q2213/13173Busy signals H04Q2213/13174Data transmission, file transfer H04Q2213/13175Graphical user interface [GUI], WWW interface, visual indication H04Q2213/13176Common channel signaling, CCS7 H04Q2213/13178Control signals H04Q2213/13179Fax, still picture H04Q2213/1318Ringing H04Q2213/1319Amplifier, attenuation circuit, echo suppressor H04Q2213/13191Repeater H04Q2213/13194Four wire connection, transmission H04Q2213/13196Connection circuit/link/trunk/junction, bridge, router, gateway H04Q2213/13199Modem, modulation H04Q2213/132Multiple-zone-metering H04Q2213/13201Change-over of service during connection H04Q2213/13202Network termination [NT] H04Q2213/13203Exchange termination [ET] H04Q2213/13204Protocols H04Q2213/13205Primary rate access, PRI H04Q2213/13206User-to-user signaling, UUS H04Q2213/13208Inverse multiplexing, channel bonding, e.g. TSSI aspects H04Q2213/13209ISDN H04Q2213/13213Counting, timing circuits H04Q2213/13214Clock signals H04Q2213/13215Code checking, CRC H04Q2213/13216Code signals, frame structure H04Q2213/13217Cranckback in routing, trombone connection, loopback circuit H04Q2213/1322PBX H04Q2213/13222PBX circuits in public exchange, centrex H04Q2213/13224Off-net subscriber, dial in to/out from network, teleworking H04Q2213/1323Party line H04Q2213/1324Conference call H04Q2213/13242Broadcast, diffusion, multicast, point-to-multipoint (1 : N) H04Q2213/13246Instant speaker's algorithm [ISA] H04Q2213/13248Multimedia H04Q2213/1325Priority service H04Q2213/13251Restricted service, class of service H04Q2213/13256Call screening H04Q2213/1326Consultation call, broker's call, call hold, toggling H04Q2213/1327Release and resetting of connection H04Q2213/13271Forced release H04Q2213/13272Premature release H04Q2213/13274Call rejection, call barring H04Q2213/1328Call transfer, e.g. in PBX H04Q2213/13281Call transfer/forward at night H04Q2213/13282Call forward, follow-me, call diversion H04Q2213/13284Call tracing H04Q2213/13286Direct in-dialling in PBX, DDI H04Q2213/13287Wake-up call service H04Q2213/13288Closed user groups, CUG H04Q2213/1329Asynchronous transfer mode, ATM H04Q2213/13291Frequency division multiplexing, FDM H04Q2213/13292Time division multiplexing, TDM H04Q2213/13293TASI, irregular time division, burst switching H04Q2213/13294CDMA, code division multiplexing, i.e. combinations of H04Q2213/13291 and/or H04Q2213/13292 with space division H04Q2213/13295Wavelength multiplexing, WDM H04Q2213/13296Packet switching, X.25, frame relay H04Q2213/13297Coupling different rates in TDM systems, data rate adaptation H04Q2213/13298Local loop systems, access network H04Q2213/13299Bus H04Q2213/133Multiple-time-metering H04Q2213/13302Magnetic elements H04Q2213/13305Transistors, semiconductors in general H04Q2213/13306Ferro-electric elements H04Q2213/1331Delay elements, shift registers H04Q2213/1332Logic circuits H04Q2213/13322Integrated circuits H04Q2213/1333Random systems H04Q2213/13331Abbreviated dialling H04Q2213/13332Broadband, CATV, dynamic bandwidth allocation H04Q2213/13333Earth satellites H04Q2213/13334Key telephone systems H04Q2213/13335Simulation, emulation H04Q2213/13336Store & forward, messaging systems email H04Q2213/13375 H04Q2213/13337Picturephone, videotelephony H04Q2213/13338Do-not-disturb H04Q2213/13339Ciphering, encryption, security H04Q2213/1334Configuration within the switch H04Q2213/13341Connections within the switch H04Q2213/13342Arrangement of switches in the network H04Q2213/13343Neural networks H04Q2213/13344Overflow H04Q2213/13345Intelligent networks, SCP H04Q2213/13348Channel/line reservation H04Q2213/13349Network management H04Q2213/13352Self-routing networks, real-time routing H04Q2213/13353Routing table, map memory H04Q2213/1336Synchronisation H04Q2213/13361Synchronous systems H04Q2213/13362Asynchronous systems H04Q2213/13363Pulse stuffing, bit stuffing H04Q2213/13367Hierarchical multiplexing, add-drop multiplexing H04Q2213/1337Operator, emergency services H04Q2213/13372Intercepting operator H04Q2213/13374Paging H04Q2213/13375Electronic mail H04Q2213/13376Information service, downloading of information, 0800/0900 services H04Q2213/13377Recorded announcement H04Q2213/13378Speech recognition, speech analysis H04Q2213/1338Inter-exchange connection H04Q2213/13381Pair-gain system, digital loop carriers H04Q2213/13383Hierarchy of switches, main and subexchange, e.g. satellite exchange H04Q2213/13384Inter-PBX traffic, PBX networks, e.g. corporate networks H04Q2213/13385Off-net subscriber H04Q2213/13386Line concentrator H04Q2213/13387Call gapping H04Q2213/13388Saturation signaling systems H04Q2213/13389LAN, internet H04Q2213/1339Fixed association of channels H04Q2213/13391Channel assigned to connections H04Q2213/13392Channels assigned according to rules H04Q2213/13393Time slot switching, T-stage, time slot interchanging, TSI H04Q2213/13395Permanent channel, leased line H04Q2213/13396Signaling in general, in-band signalling H04Q2213/13399Virtual channel/circuits H04Q2213/134Coin box H04Q2213/13402Data transmission out of voice frequency band ADSL H04Q2213/13039 H04Q2213/13405Dual frequency signaling, DTMF H04Q2213/13407Detection of data transmission mode H04Q2213/135Service creation H04Q2213/13501Feature interactions H04Q2213/13502primitives - inc. service-independent building blocks [SIBBs] H04Q2213/13503object-oriented systems H04Q2213/13504client/server architectures H04Q2213/13505management information base [MIB] H04Q2213/13511reservation H04Q2213/13512800 - freefone H04Q2213/13513UPT - personal as opposed to terminal mobility, inc. number portability H04Q2213/13514quality of service - inc. grade of service H04Q2213/13515authentication, authorisation - fraud prevention H04Q2213/13516agents or brokers - user, terminal etc., also OSI agent/managers H04Q2213/13517SLEE - service logic execution H04Q2213/13521fault management H04Q2213/13522traffic management H04Q2213/13523bandwidth management, e.g. capacity management H04Q2213/13524cost management least cost H04Q2213/13138 H04Q2213/13525GUI - graphical user interface, inc. for service creation H04Q2213/13526resource management H04Q2213/13527protocols - X.25, TCAP etc. H04Q2213/13528SCP architecture H04Q2213/13531virtual networks - inc. PVN H04Q2213/13532mobile networks H04Q2213/13533multivendor and hybrid, e.g. public/private, networks, inc. international H04Q2213/13534Internet - WWW, HTML, browsers etc. H04Q2213/13535distributed systems - also domains in service creation H04Q2213/13541routing H04Q2213/13542numbering plans, e.g. number re-allocation H04Q2213/13543network planning, configuration management, e.g. for growth H04Q2213/13544modeling or simulation, particularly of networks H04Q2213/13545monitoring of signaling messages, intelligent network H04Q2213/13546Intelligent Peripheral H04Q2213/13547subscriber, e.g. profile, database, database access H04Q2213/13548call modeling, e.g. Basic Call State Model H04Q2213/13561congestion - inc. overflow H04Q2213/13562blocking H04Q2213/13563call gapping, e.g. to prevent congestion H04Q2213/13564load balancing H04Q2213/13565restoration, e.g. disaster recovery, self-healing networks H04Q2213/13566mediation H04Q2213/13567negotiation, management policy, goals H04Q2213/136Collect call, e.g. 800 service H04Q2213/138Least cost routing H04Q2213/14Busy test, e.g. marking busy H04Q2213/141Hunting for free outlet, circuit, channel H04Q2213/144Searching a free path through cascaded switching stages H04Q2213/145Rerouting, e.g. on failure H04Q2213/146Rearrangement H04Q2213/15Waiting H04Q2213/152Automatic call retry H04Q2213/156Automatic redialling H04Q2213/16Service observationFault circuitTesting H04Q2213/161Blocking or cutoff of faulty apparatus, e.g. timed out H04Q2213/162Fault indication, e.g. localisation H04Q2213/163Fault alarm H04Q2213/164Traffic registrationAdaptation of traffic possibilities H04Q2213/166Prevention of faults H04Q2213/167Redundancy H04Q2213/171Number indicating signals (no dial signals) H04Q2213/172Supervisory signals H04Q2213/173Busy signal H04Q2213/174Data transmission H04Q2213/175Other signals H04Q2213/176Common channel signalling H04Q2213/177Number sending signals, e.g. dialling tone, proceed to send H04Q2213/178Control signals, e.g. also service connection H04Q2213/179FacsimileFax, e.g. still picture H04Q2213/18Ringing H04Q2213/182Ring trip H04Q2213/19Echo-cancellingHybridAmplifierAttenuator H04Q2213/191Repeater H04Q2213/192Common amplifier for bidirectional traffic H04Q2213/194Four-wire connection or transmission H04Q2213/196Connection-circuitTrunkJunction circuit H04Q2213/197Ping-pong transmission H04Q2213/198Temporary associated devicesPooled adapters H04Q2213/199Modem H04Q2213/20ISDN H04Q2213/201Change-over service H04Q2213/202Network termination [NT] H04Q2213/203Exchange termination [ET] H04Q2213/204ISDN protocolISO 7 H04Q2213/205Primary rate access H04Q2213/206User-to-user signalling H04Q2213/208Inverse multiplexingTime slot sequence integrity [TSSI] aspects H04Q2213/21Impulse transmission H04Q2213/211Impulse correction or reshaping H04Q2213/212Absorbing of digits H04Q2213/214Phase shifted impulsesClock signalsTiming H04Q2213/215Code checking H04Q2213/216Code signalsFraming (not synchronizing) H04Q2213/217Setting of switch by means of pulses H04Q2213/218Bistable relays, e.g. Ferreed H04Q2213/22PBX H04Q2213/222PBX circuits in public exchange (Centrex) H04Q2213/23Partyline H04Q2213/24Conference circuit H04Q2213/242Broadcast and multicast (1:N) H04Q2213/243Con-cast, e.g. multipoint-point (N:1) H04Q2213/246Instant speaker's algorithm [ISA] H04Q2213/25Preferential service H04Q2213/251Restricted service H04Q2213/252Breaking-in on existing connection H04Q2213/256Call screening H04Q2213/26Call-back H04Q2213/27Release H04Q2213/271Forced release H04Q2213/272Premature release H04Q2213/274Call rejection H04Q2213/28Call transfer H04Q2213/281Prepared call transfer, e.g. night service, intercepting service H04Q2213/282Call forwarding H04Q2213/284Call tracing H04Q2213/286Direct inward dialling [PBX] H04Q2213/287Call service, e.g. morning call service H04Q2213/29ATM H04Q2213/291Frequency division multiplex H04Q2213/292Time (de)multiplexing H04Q2213/293Irregular time switching, e.g. TASIBurst switching H04Q2213/294Other multiplexing systems, e.g. codemultiplex, TDM, FDM, FDM and Space division, TDM and Space division H04Q2213/295Wavelength division multiplex H04Q2213/296Packet switching H04Q2213/297Coupling circuits between different (rate) TDM systems H04Q2213/298Loop or ring system H04Q2213/299Bus H04Q2213/301Tubes and other non-linear elements with 2 electrodes, e.g. diodes H04Q2213/302Magnetic elements H04Q2213/303Tubes and other non-linear elements with more than two electrodes H04Q2213/304SuperconductorsThermistorsVaristors H04Q2213/305Transistors H04Q2213/306Ferro-electric elements H04Q2213/307Hall elements H04Q2213/308Photo conductorsPhoto elements H04Q2213/31Delay devicesCircuits, e.g. shift memories H04Q2213/32Logic elements H04Q2213/322Integrated circuit H04Q2213/33Special systemsSpecial service H04Q2213/331Abbreviated dialing H04Q2213/332Broadband system H04Q2213/333Systems with earth-satellites H04Q2213/334Key telephone system H04Q2213/335Simulation H04Q2213/336Store and forward, e.g. message switching H04Q2213/337Picturephone H04Q2213/338Do not disturb H04Q2213/339Ciphering/encryption H04Q2213/34General schemePosition of components in an exchange H04Q2213/341Contactbank connections H04Q2213/342General schemePosition of exchanges H04Q2213/343Neural network H04Q2213/344Overflow H04Q2213/345Intelligent network H04Q2213/346Switch with inverted grouping H04Q2213/347Nodal network H04Q2213/348Reservation of lines/channels H04Q2213/349Network managementExpert system H04Q2213/35Separate control and speech paths, e.g. route-searching planes H04Q2213/352Self-routing switch H04Q2213/353Map memory H04Q2213/36Synchronisation H04Q2213/361Synchronous system H04Q2213/362Asynchronous system H04Q2213/363Bit or pulse stuffing H04Q2213/366Integrated systems, e.g. transparency H04Q2213/367Multiple multiplexingHierarchical multiplexing H04Q2213/37Operator H04Q2213/372Intervention by operatorIntercepting operator H04Q2213/374Paging H04Q2213/375Electronic mail H04Q2213/376Information service H04Q2213/377Recorded announcement H04Q2213/378Speech recognitionSpeech analysis H04Q2213/38Interexchange connections, e.g. connections of different kinds of networks H04Q2213/381Pair gain system H04Q2213/382Provisions for interexchange traffic in the local exchange H04Q2213/383Main and subexchange, e.g. satellite exchanges H04Q2213/384Inter-PBX trafficPBX networks H04Q2213/385Traffic in PBX to and from public exchange H04Q2213/386Line concentrator H04Q2213/388Saturation signalling system H04Q2213/39Channels assigned to subscribers H04Q2213/391Channel allocation to connections H04Q2213/392Channel allocation - special rules H04Q2213/393Channel interchanging, e.g. time slot switching H04Q2213/394Channel assignment without time slot switching H04Q2213/395(Semi)permanent channels, e.g. leased lines H04Q2213/396Signalling in generalSpecial register channel H04Q2213/399Virtual channel allocation H04Q2213/401DC and voltages of different kinds or values H04Q2213/402AC outside voice band H04Q2213/403Voice frequency H04Q2213/405Voice frequency current used for digit selection H04Q2213/407Push-button dialling not H04Q2213/405