|
H04M 1/00
|
Substation equipment, e.g. for use by subscribers |
|
H04M 1/02
|
Constructional features of telephone sets |
|
H04M 1/03
|
Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets |
|
H04M 1/04
|
Supports for telephone transmitters or receivers |
|
H04M 1/05
|
Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast |
|
H04M 1/06
|
Hooks; Cradles |
|
H04M 1/08
|
Hooks; Cradles associated with switches operated by the weight of the receiver or hand-set |
|
H04M 1/10
|
Hooks; Cradles associated with switches operated by magnetic effect due to proximity of receiver or hand-set |
|
H04M 1/11
|
Supports for sets, e.g. incorporating armrests |
|
H04M 1/12
|
Adjustable supports, e.g. extensible |
|
H04M 1/13
|
Adjustable supports, e.g. extensible pantographic |
|
H04M 1/14
|
Supports for sets, e.g. incorporating armrests with resilient means to eliminate extraneous vibrations |
|
H04M 1/15
|
Protecting or guiding telephone cords |
|
H04M 1/17
|
Hygienic or sanitary devices on telephone equipment |
|
H04M 1/18
|
Telephone sets specially adapted for use in ships, mines, or other places exposed to adverse environment |
|
H04M 1/19
|
Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission; Mouthpieces or receivers specially adapted therefor |
|
H04M 1/20
|
Arrangements for preventing acoustic feedback |
|
H04M 1/21
|
Combinations with auxiliary equipment, e.g. with clocks or memoranda pads |
|
H04M 1/22
|
Illumination; Arrangements for improving the visibility of characters on dials |
|
H04M 1/23
|
Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof |
|
H04M 1/24
|
Arrangements for testing |
|
H04M 1/26
|
Devices for calling a subscriber |
|
H04M 1/27
|
Devices whereby a plurality of signals may be stored simultaneously |
|
H04M 1/30
|
Devices which can set up and transmit only one digit at a time |
|
H04M 1/31
|
Devices which can set up and transmit only one digit at a time by periodically opening and closing contacts to generate trains of pulses |
|
H04M 1/32
|
Locking setting devices during transmission to prevent interference by user |
|
H04M 1/34
|
Lost-motion or other arrangements for ensuring a pause between successive digit transmissions |
|
H04M 1/38
|
Pulses transmitted by a movement variably limited by the setting of a stop |
|
H04M 1/40
|
Devices which can set up and transmit only one digit at a time by periodically opening and closing contacts to generate trains of pulses wherein the setting-operation short-circuits or open-circuits the transmitting mechanism during a variable part of a cycle |
|
H04M 1/50
|
Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies |
|
H04M 1/52
|
Arrangements wherein a dial or the like is mechanically coupled to a line selector |
|
H04M 1/53
|
Generation of additional signals, e.g. additional pulses |
|
H04M 1/54
|
Arrangements wherein a dial or the like generates identifying signals, e.g. in party-line systems |
|
H04M 1/56
|
Arrangements for indicating or recording the called number at the calling subscriber's set |
|
H04M 1/57
|
Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set |
|
H04M 1/58
|
Anti-side-tone circuits |
|
H04M 1/60
|
Substation equipment, e.g. for use by subscribers including speech amplifiers |
|
H04M 1/62
|
Constructional arrangements |
|
H04M 1/64
|
Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations |
|
H04M 1/65
|
Recording arrangements |
|
H04M 1/66
|
Substation equipment, e.g. for use by subscribers with means for preventing unauthorised or fraudulent calling |
|
H04M 1/67
|
Preventing unauthorised calls from a telephone set by electronic means |
|
H04M 1/68
|
Circuit arrangements for preventing eavesdropping |
|
H04M 1/70
|
Lock-out or secrecy arrangements in party-line systems |
|
H04M 1/71
|
Substation extension arrangements |
|
H04M 1/72
|
Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection |
|
H04M 1/73
|
Battery saving arrangements |
|
H04M 1/74
|
Interface circuits for coupling substations to external telephone lines with means for reducing effects due to line faults |
|
H04M 1/76
|
Compensating for differences in line impedance |
|
H04M 1/78
|
Circuit arrangements in which low-frequency speech signals proceed in one direction on the line, while speech signals proceeding in the other direction on the line are modulated on a high-frequency carrier signal |
|
H04M 1/80
|
Telephone line holding circuits |
|
H04M 1/82
|
Line monitoring circuits for call progress or status discrimination |
|
H04M 1/215
|
Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers |
|
H04M 1/247
|
Telephone sets including user guidance or feature selection means facilitating their use |
|
H04M 1/253
|
Telephone sets using digital voice transmission |
|
H04M 1/272
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial |
|
H04M 1/274
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time |
|
H04M 1/275
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using static electronic memories, e.g. chips implemented by means of portable electronic directories |
|
H04M 1/276
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using magnetic recording, e.g. on tape |
|
H04M 1/278
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using punched cards or tapes |
|
H04M 1/315
|
Clutches; Spring assemblies; Speed regulators, e.g. centrifugal brakes |
|
H04M 1/515
|
Devices for calling a subscriber by generating or selecting signals other than trains of pulses of similar shape, or signals other than currents of one or more different frequencies, e.g. generation of dc signals of alternating polarity, coded pulses or impedance dialling |
|
H04M 1/652
|
Means for playing back the recorded messages by remote control over a telephone line |
|
H04M 1/654
|
Telephone line monitoring circuits therefor, e.g. ring detectors |
|
H04M 1/656
|
Recording arrangements for recording conversations |
|
H04M 1/658
|
Means for redirecting recorded messages to other extensions or equipment |
|
H04M 1/663
|
Preventing unauthorised calls to a telephone set |
|
H04M 1/665
|
Preventing unauthorised calls to a telephone set by checking the validity of a code |
|
H04M 1/667
|
Preventing unauthorised calls from a telephone set |
|
H04M 1/673
|
Preventing unauthorised calls from a telephone set by electronic means the user being required to key in a code |
|
H04M 1/675
|
Preventing unauthorised calls from a telephone set by electronic means the user being required to insert a coded card, e.g. a smart card carrying an integrated circuit chip |
|
H04M 1/677
|
Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers |
|
H04M 1/715
|
Substation extension arrangements using two or more extensions per line |
|
H04M 1/723
|
Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting using two or more extensions per line |
|
H04M 1/724
|
User interfaces specially adapted for cordless or mobile telephones |
|
H04M 1/725
|
Cordless telephones |
|
H04M 1/727
|
Identification code transfer arrangements |
|
H04M 1/733
|
Cordless telephones with a plurality of base stations connected to a plurality of lines |
|
H04M 1/737
|
Cordless telephones characterised by transmission of electromagnetic waves other than radio waves, e.g. infrared waves |
|
H04M 1/738
|
Interface circuits for coupling substations to external telephone lines |
|
H04M 1/2745
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using static electronic memories, e.g. chips |
|
H04M 1/2746
|
Sorting, e.g. according to history or frequency of use |
|
H04M 1/2747
|
Scrolling on a display |
|
H04M 1/2748
|
Methods of retrieving data by matching character strings |
|
H04M 1/2749
|
Automatic dialling or redialling systems, e.g. on off-hook or redial on busy |
|
H04M 1/2753
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using static electronic memories, e.g. chips providing data content |
|
H04M 1/2755
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using static electronic memories, e.g. chips providing data content by optical scanning |
|
H04M 1/2757
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using static electronic memories, e.g. chips providing data content by data transmission, e.g. downloading |
|
H04M 1/7243
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages |
|
H04M 1/7246
|
User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions by connection of exchangeable housing parts |
|
H04M 1/27453
|
Directories allowing storage of additional subscriber data, e.g. metadata |
|
H04M 1/27457
|
Management thereof, e.g. manual editing of data |
|
H04M 1/27467
|
Methods of retrieving data |
|
H04M 1/27475
|
Methods of retrieving data using interactive graphical means or pictorial representations |
|
H04M 1/27485
|
Appending a prefix to or inserting a pause into a dialling sequence |
|
H04M 1/27495
|
Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time using static electronic memories, e.g. chips implemented by means of discrete electronic components, i.e. neither programmable nor microprocessor-controlled |
|
H04M 1/72403
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality |
|
H04M 1/72406
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by software upgrading or downloading |
|
H04M 1/72409
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories |
|
H04M 1/72412
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories using two-way short-range wireless interfaces |
|
H04M 1/72415
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by interfacing with external accessories for remote control of appliances |
|
H04M 1/72418
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services |
|
H04M 1/72421
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services with automatic activation of emergency service functions, e.g. upon sensing an alarm |
|
H04M 1/72424
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting emergency services with manual activation of emergency-service functions |
|
H04M 1/72427
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting games or graphical animations |
|
H04M 1/72433
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for voice messaging, e.g. dictaphones |
|
H04M 1/72436
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for text messaging, e.g. SMS or e-mail |
|
H04M 1/72439
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality with interactive means for internal management of messages for image or video messaging |
|
H04M 1/72442
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for playing music files |
|
H04M 1/72445
|
User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality for supporting Internet browser applications |
|
H04M 1/72448
|
User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions |
|
H04M 1/72451
|
User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to schedules, e.g. using calendar applications |
|
H04M 1/72454
|
User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to context-related or environment-related conditions |
|
H04M 1/72457
|
User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions according to geographic location |
|
H04M 1/72463
|
User interfaces specially adapted for cordless or mobile telephones with means for adapting the functionality of the device according to specific conditions to restrict the functionality of the device |
|
H04M 1/72466
|
User interfaces specially adapted for cordless or mobile telephones with selection means, e.g. keys, having functions defined by the mode or the status of the device |
|
H04M 1/72469
|
User interfaces specially adapted for cordless or mobile telephones for operating the device by selecting functions from two or more displayed items, e.g. menus or icons |
|
H04M 1/72472
|
User interfaces specially adapted for cordless or mobile telephones for operating the device by selecting functions from two or more displayed items, e.g. menus or icons wherein the items are sorted according to specific criteria, e.g. frequency of use |
|
H04M 1/72475
|
User interfaces specially adapted for cordless or mobile telephones specially adapted for disabled users |
|
H04M 1/72478
|
User interfaces specially adapted for cordless or mobile telephones specially adapted for disabled users for hearing-impaired users |
|
H04M 1/72481
|
User interfaces specially adapted for cordless or mobile telephones specially adapted for disabled users for visually impaired users |
|
H04M 1/72484
|
User interfaces specially adapted for cordless or mobile telephones wherein functions are triggered by incoming communication events |
|
H04M 1/72502
|
Cordless telephones with one base station connected to a single line |
|
H04M 1/72505
|
Radio link set-up procedures |
|
H04M 1/72508
|
Radio link set-up procedures using a control channel |
|
H04M 1/72511
|
Searching for available channels |
|
H04M 1/72513
|
On-hold, intercom or transfer communication modes |
|
H04M 1/72516
|
Cordless telephones with one base station connected to a single line with means for out-of-range alerting |
|
H04M 3/00
|
Automatic or semi-automatic exchanges |
|
H04M 3/02
|
Calling substations, e.g. by ringing |
|
H04M 3/04
|
Calling substations, e.g. by ringing the calling signal being supplied from the final selector |
|
H04M 3/06
|
Calling substations, e.g. by ringing the calling signal being supplied from the subscriber's line circuit |
|
H04M 3/08
|
Indicating faults in circuits or apparatus |
|
H04M 3/10
|
Providing fault- or trouble-signals |
|
H04M 3/12
|
Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits |
|
H04M 3/14
|
Signalling existence of persistent "off-hook" condition |
|
H04M 3/16
|
Automatic or semi-automatic exchanges with lock-out or secrecy provision in party-line systems |
|
H04M 3/18
|
Automatic or semi-automatic exchanges with means for reducing effects due to line faults |
|
H04M 3/20
|
Automatic or semi-automatic exchanges with means for breaking-in on conversations |
|
H04M 3/22
|
Arrangements for supervision, monitoring or testing |
|
H04M 3/24
|
Arrangements for supervision, monitoring or testing with provision for checking the normal operation |
|
H04M 3/26
|
Arrangements for supervision, monitoring or testing with means for applying test signals |
|
H04M 3/28
|
Automatic routine testing |
|
H04M 3/30
|
Automatic routine testing for subscribers' lines |
|
H04M 3/32
|
Automatic routine testing for lines between exchanges |
|
H04M 3/34
|
Testing for cross-talk |
|
H04M 3/36
|
Statistical metering, e.g. recording occasions when traffic exceeds capacity of trunks |
|
H04M 3/38
|
Graded-service arrangements, i.e. some subscribers prevented from establishing certain connections |
|
H04M 3/40
|
Applications of speech amplifiers |
|
H04M 3/42
|
Systems providing special services or facilities to subscribers |
|
H04M 3/44
|
Additional connecting arrangements for providing access to frequently-wanted subscribers, e.g. abbreviated dialling |
|
H04M 3/46
|
Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained |
|
H04M 3/48
|
Arrangements for recalling a calling subscriber when the wanted subscriber ceases to be busy |
|
H04M 3/50
|
Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers |
|
H04M 3/51
|
Centralised call answering arrangements requiring operator intervention |
|
H04M 3/52
|
Arrangements for routing dead number calls to operators |
|
H04M 3/53
|
Centralised arrangements for recording incoming messages |
|
H04M 3/54
|
Arrangements for diverting calls for one subscriber to another predetermined subscriber |
|
H04M 3/56
|
Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities |
|
H04M 3/58
|
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 |
|
H04M 3/60
|
Semi-automatic systems, i.e. systems in which the numerical selection of the outgoing line is under the control of an operator |
|
H04M 3/62
|
Keyboard equipment |
|
H04M 3/64
|
Arrangements for signalling the number or class of the calling line to the operator |
|
H04M 3/424
|
Arrangements for automatic redialling |
|
H04M 3/428
|
Arrangements for placing incoming calls on hold |
|
H04M 3/432
|
Arrangements for calling a subscriber at a specific time, e.g. morning call service |
|
H04M 3/436
|
Arrangements for screening incoming calls |
|
H04M 3/487
|
Arrangements for providing information services, e.g. recorded voice services or time announcements |
|
H04M 3/493
|
Interactive information services, e.g. directory enquiries |
|
H04M 3/523
|
Centralised call answering arrangements requiring operator intervention with call distribution or queuing |
|
H04M 3/527
|
Centralised call answering arrangements not requiring operator intervention |
|
H04M 3/533
|
Voice mail systems |
|
H04M 3/537
|
Arrangements for indicating the presence of a recorded message |
|
H04M 5/00
|
Manual exchanges |
|
H04M 5/02
|
Constructional details |
|
H04M 5/04
|
Arrangements for indicating calls or supervising connections for calling or clearing |
|
H04M 5/06
|
Arrangements for indicating calls or supervising connections for calling or clearing affording automatic call distribution |
|
H04M 5/08
|
Manual exchanges using connecting means other than cords |
|
H04M 5/10
|
Manual exchanges using separate plug for each subscriber |
|
H04M 5/12
|
Calling substations, e.g. by ringing |
|
H04M 5/14
|
Applications of speech amplifiers |
|
H04M 5/16
|
Manual exchanges with means for reducing effects due to line faults |
|
H04M 5/18
|
Arrangements for signalling the class or number of called or calling line from one exchange to another |
|
H04M 5/20
|
Arrangements for indicating the numbers of the incoming lines |
|
H04M 7/00
|
Arrangements for interconnection between switching centres |
|
H04M 7/02
|
Arrangements for interconnection between switching centres for compensating differences of ground potential |
|
H04M 7/04
|
Arrangements for interconnection between switching centres for compensating differences of line impedance |
|
H04M 7/06
|
Arrangements for interconnection between switching centres using auxiliary connections for control or supervision |
|
H04M 7/08
|
Arrangements for interconnection between switching centres for phantom working |
|
H04M 7/10
|
Arrangements for interconnection between switching centres for two-way working, i.e. calls may be set-up in either direction over the same connection |
|
H04M 7/12
|
Arrangements for interconnection between switching centres for working between exchanges having different types of switching equipment, e.g. power-driven and step by step or decimal and non-decimal |
|
H04M 7/14
|
Arrangements for interconnection between switching centres in systems involving main and subordinate switching centres |
|
H04M 7/16
|
Arrangements for interconnection between switching centres in systems employing carrier frequencies |
|
H04M 9/00
|
Arrangements for interconnection not involving centralised switching |
|
H04M 9/02
|
Arrangements for interconnection not involving centralised switching involving a common line for all parties |
|
H04M 9/04
|
Arrangements for interconnection not involving centralised switching involving a separate line for each pair of parties |
|
H04M 9/06
|
Arrangements for interconnection not involving centralised switching involving combinations of interconnecting lines |
|
H04M 9/08
|
Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic |
|
H04M 9/10
|
Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic with switching of direction of transmission by voice frequency |
|
H04M 11/00
|
Telephonic communication systems specially adapted for combination with other electrical systems |
|
H04M 11/02
|
Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems |
|
H04M 11/04
|
Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems |
|
H04M 11/06
|
Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors |
|
H04M 11/08
|
Telephonic communication systems specially adapted for combination with other electrical systems specially adapted for optional reception of entertainment or informative matter |
|
H04M 11/10
|
Telephonic communication systems specially adapted for combination with other electrical systems with dictation recording and playback systems |
|
H04M 13/00
|
Party-line systems |
|
H04M 15/00
|
Arrangements for metering, time-control or time-indication |
|
H04M 15/02
|
Severing connection after a predetermined time |
|
H04M 15/04
|
Recording calls in printed, perforated, or other permanent form |
|
H04M 15/06
|
Recording class or number of calling party or called party |
|
H04M 15/08
|
Metering calls to called party |
|
H04M 15/10
|
Metering calls from calling party |
|
H04M 15/12
|
Discriminative metering |
|
H04M 15/14
|
Discriminative metering according to class of calling party |
|
H04M 15/16
|
Discriminative metering according to connection obtained |
|
H04M 15/18
|
Discriminative metering according to duration of call |
|
H04M 15/20
|
Operator's time recording or indicating arrangements |
|
H04M 15/22
|
Discriminative metering according to time of day |
|
H04M 15/24
|
Discriminative metering preventing metering of tax-free calls to certain lines, e.g. to fire or ambulance stations |
|
H04M 15/26
|
Metering calls from calling party with a meter at the exchange controlled by an operator |
|
H04M 15/28
|
Arrangements for metering, time-control or time-indication with meter at substation |
|
H04M 15/30
|
Arrangements for metering, time-control or time-indication with meter at substation the meter not being controlled from an exchange |
|
H04M 15/32
|
Metering arrangements for satellites or concentrators which connect one or more exchange lines with a group of local lines |
|
H04M 15/34
|
Metering arrangements for private branch exchanges |
|
H04M 15/36
|
Metering arrangements for party-lines |
|
H04M 15/38
|
Metering by apparatus other than mechanical step-by-step counter type |
|
H04M 17/00
|
Prepayment telephone systems |
|
H04M 17/02
|
Coin-freed or check-freed systems |
|
H04M 19/00
|
Current supply arrangements for telephone systems |
|
H04M 19/02
|
Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone |
|
H04M 19/04
|
Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations |
|
H04M 19/06
|
Current supply arrangements for telephone systems in which current supply sources at subordinate switching centres are charged from the main exchange |
|
H04M 19/08
|
Current supply arrangements for telephone systems with current supply sources at the substations |
|
H04M 99/00
|
Subject matter not provided for in other groups of this subclass |
