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IPC-Stelle: H04M 3/424 2-Punkt Untergruppe [Version 7 (gültig ab 01.2000), Sprache EN - English]

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Hierarchielinien

DEKLA-Gruppen

Symbol		Titel
A Hierarchieinformationen		HUMAN NECESSITIES
B Hierarchieinformationen		PERFORMING OPERATIONS; TRANSPORTING
C Hierarchieinformationen		CHEMISTRY; METALLURGY
D Hierarchieinformationen		TEXTILES; PAPER
E Hierarchieinformationen		FIXED CONSTRUCTIONS
F Hierarchieinformationen		MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
G Hierarchieinformationen		PHYSICS
H Hierarchieinformationen		ELECTRICITY
H01 Hierarchieinformationen		BASIC ELECTRIC ELEMENTS
H02 Hierarchieinformationen		GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
H03 Hierarchieinformationen		BASIC ELECTRONIC CIRCUITRY
H04 Hierarchieinformationen		ELECTRIC COMMUNICATION TECHNIQUE
H04B Hierarchieinformationen		TRANSMISSION (transmission systems for measured values, control or similar signals G08C; speech analysis or synthesis G10L; coding, decoding or code conversion, in general H03M; broadcast communication H04H; multiplex systems H04J; secret communication H04K; transmission of digital information H04L) [4]
H04H Hierarchieinformationen		BROADCAST COMMUNICATION (transmission in general H04B; multiplex communication H04J)
H04J Hierarchieinformationen		MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L 5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N 7/08; in exchanges H04Q 11/00; stereophonic systems H04S)
H04K Hierarchieinformationen		SECRET COMMUNICATION; JAMMING OF COMMUNICATION
H04L Hierarchieinformationen		TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (typewriters B41J; order telegraphs, fire or police telegraphs G08B; visual telegraphy G08B , G08C; teleautographic systems G08C; ciphering or deciphering apparatus per se G09C; coding, decoding or code conversion, in general H03M; arrangements common to telegraphic and telephonic communication H04M; selecting H04Q) [4]
H04M Hierarchieinformationen		TELEPHONIC COMMUNICATION (counting mechanisms G06M; circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08; reels or other take-up devices for cords H02G 11/00; multiplex transmission between switching centres H04J; selecting arrangements H04Q; loudspeakers, microphones, gramophone pick-ups or like electromechanical transducers H04R)
H04M 1/00 Hierarchieinformationen		Substation equipment, e.g. for use by subscribers (subscriber services or facilities provided at exchanges H04M 3/00; prepayment telephone coin boxes H04M 17/00; current supply arrangements H04M 19/08; keyboard switches in general H01H 13/70 , H03K 17/94) [1, 7]
H04M 3/00 Hierarchieinformationen		Automatic or semi-automatic exchanges
H04M 3/02 Hierarchieinformationen		. Ringing or otherwise calling substations (selective calling H04Q)
H04M 3/04 Hierarchieinformationen		. . calling signal supplied from final selector
H04M 3/06 Hierarchieinformationen		. . calling signal supplied from subscriber's line circuit
H04M 3/08 Hierarchieinformationen		. Indicating faults in circuits or apparatus
H04M 3/10 Hierarchieinformationen		. . providing fault- or trouble-signals
H04M 3/12 Hierarchieinformationen		. . Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits
H04M 3/14 Hierarchieinformationen		. . Signalling existence of persistent "off-hook" condition
H04M 3/16 Hierarchieinformationen		. with lock-out or secrecy provision in party-line systems
H04M 3/18 Hierarchieinformationen		. with means for reducing interference; with means for reducing effects due to line faults
H04M 3/20 Hierarchieinformationen		. with means for interrupting existing connections; with means for breaking-in on conversations
H04M 3/22 Hierarchieinformationen		. Supervisory, monitoring, or testing arrangements
H04M 3/24 Hierarchieinformationen		. . with provision for checking the normal operation
H04M 3/26 Hierarchieinformationen		. . with means for applying test signals
H04M 3/28 Hierarchieinformationen		. . . Automatic routine testing
H04M 3/30 Hierarchieinformationen		. . . . for subscribers' lines
H04M 3/32 Hierarchieinformationen		. . . . for lines between exchanges
H04M 3/34 Hierarchieinformationen		. . . Testing for cross-talk (in lines generally H04B)
H04M 3/36 Hierarchieinformationen		. . Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks (digital computers for evaluating statistical data G06F 17/18)
H04M 3/38 Hierarchieinformationen		. Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections (queuing arrangements H04Q 3/64)
H04M 3/40 Hierarchieinformationen		. Applications of speech amplifiers
H04M 3/42 Hierarchieinformationen		. Systems providing special services or facilities to subscribers
H04M 3/424 Hierarchieinformationen		. . Arrangements for automatic redialling (at the subscriber's set H04M 1/27) [7]
H04M 3/428 Hierarchieinformationen		. . Arrangements for placing incoming calls on hold [7]
H04M 3/432 Hierarchieinformationen		. . Arrangements for calling a subscriber at a specific time, e.g. morning call service [7]
H04M 3/436 Hierarchieinformationen		. . Arrangements for screening incoming calls [7]
H04M 3/44 Hierarchieinformationen		. . Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling (at the subscriber's set H04M 1/27; automatic redialling H04M 3/424) [1, 7]
H04M 3/46 Hierarchieinformationen		. . Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained
H04M 3/48 Hierarchieinformationen		. . Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy
H04M 3/487 Hierarchieinformationen		. . Arrangements for providing information services, e.g. recorded voice services, time announcement [7]
H04M 3/493 Hierarchieinformationen		. . . Interactive information services, e.g. directory enquiries [7]
H04M 3/50 Hierarchieinformationen		. . Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers (H04M 3/487 takes precedence; centralised dictation systems H04M 11/10) [1, 7]
H04M 3/51 Hierarchieinformationen		. . . Centralised call answering arrangements requiring operator intervention [7]
H04M 3/52 Hierarchieinformationen		. . . . Arrangements for routing dead number calls to operators
H04M 3/523 Hierarchieinformationen		. . . . with call distribution or queuing [7]
H04M 3/527 Hierarchieinformationen		. . . Centralised call answering arrangements not requiring operator intervention [7]
H04M 3/53 Hierarchieinformationen		. . . Centralised arrangements for recording incoming messages [7]
H04M 3/533 Hierarchieinformationen		. . . . Voice mail systems [7]
H04M 3/537 Hierarchieinformationen		. . . . Arrangements for indicating the presence of a recorded message [7]
H04M 3/54 Hierarchieinformationen		. . Arrangements for diverting calls for one subscriber to another predetermined subscriber
H04M 3/56 Hierarchieinformationen		. . Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities (video conference systems H04N 7/15)
H04M 3/58 Hierarchieinformationen		. . Arrangements for transferring received calls from one subscriber to another; Arrangements affording interim conversations between either the calling or the called party and a third party (substation line holding circuits H04M 1/80) [1, 7]
H04M 3/60 Hierarchieinformationen		. Semi-automatic systems, i.e. in which the numerical selection of the outgoing line is under the control of an operator
H04M 3/62 Hierarchieinformationen		. . Keyboard equipment
H04M 3/64 Hierarchieinformationen		. . Arrangements for signalling the number or class of the calling line to the operator (between operators in inter-exchange working H04M 5/18)
H04M 5/00 Hierarchieinformationen		Manual exchanges (substation equipment in general H04M 1/00)
H04M 7/00 Hierarchieinformationen		Interconnection arrangements between switching centres (transmission arrangements in general H04B)
H04M 9/00 Hierarchieinformationen		Interconnection arrangements not involving centralised switching
H04M 11/00 Hierarchieinformationen		Telephonic communication systems adapted for combination with other electrical systems
H04M 13/00 Hierarchieinformationen		Party-line systems (substation equipment H04M 1/00; exchange equipment H04M 3/00 , H04M 5/00; metering arrangements H04M 15/36)
H04M 15/00 Hierarchieinformationen		Metering arrangements; Time-controlling arrangements; Time-indicating arrangements
H04M 17/00 Hierarchieinformationen		Prepayment telephone systems (using a coded card to authorise calls from a telephone set H04M 1/675) [1, 7]
H04M 19/00 Hierarchieinformationen		Current supply arrangements for telephone systems (for selecting equipment H04Q 1/28)
H04N Hierarchieinformationen		PICTORIAL COMMUNICATION, e.g. TELEVISION (measuring, testing G01; systems for autographic writing, e.g. writing telegraphy, which involve following an outline G08; information storage based on relative movement between record carrier and transducer G11B; coding, decoding or code conversion, in general H03M; broadcast distribution or the recording of use made thereof H04H) [4]
H04Q Hierarchieinformationen		SELECTING (switches, relays, selectors H01H; electronic switches H03K 17/00)
H04R Hierarchieinformationen		LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS (generating mechanical vibrations in general B06B; transducers for measuring particular variables G01; transducers in clocks G04; producing sounds with frequency not determined by supply frequency G10K; transducers in recording or reproducing heads G11B; transducers in motors H02) [6]
H04S Hierarchieinformationen		STEREOPHONIC SYSTEMS (information storage on discs or tapes G11B; broadcast systems for the distribution of stereophonic information H04H 5/00; multiplex systems in general H04J) [3]
H05 Hierarchieinformationen		ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

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