FI (list display)

  • H04M1/00
  • 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) [1,7] HB CC 5K127
  • H04M1/00@G
  • Telephone HB CC 5K127
  • H04M1/00@W
  • .Running state indication device, e.g. indication of the state of line usage, off-hook alarm HB CC 5K127
  • H04M1/00@K
  • ..Devices for displaying incoming calls, e.g., characterized by detection of call signals HB CC 5K127
  • H04M1/00@B
  • ...using audible sound HB CC 5K127
  • H04M1/00@C
  • ....Tone ringer HB CC 5K127
  • H04M1/00@D
  • ....Electric bell HB CC 5K127
  • H04M1/00@L
  • ...using visible indication HB CC 5K127
  • H04M1/00@A
  • .Circuit HB CC 5K127
  • H04M1/00@H
  • ..For voice (having a voice amplifier H04M1/60) HB CC 5K127
  • H04M1/00@J
  • ..For signal, e.g. hook detection, detection of electrical signal polarity (or polarity inversion) HB CC 5K127
  • H04M1/00@M
  • .Special telephone apparatuses, e.g. connected to four-wire telephone cables HB CC 5K127
  • H04M1/00@E
  • ..Call forwarding HB CC 5K127
  • H04M1/00@R
  • ..Multi-function telephones (loudspeaker telephones 1/60-62, automatic answering telephones 1/64-65) HB CC 5K127
  • H04M1/00@S
  • ...Functions for origination/termination HB CC 5K127
  • H04M1/00@U
  • ...Coupling with other electrical components HB CC 5K127
  • H04M1/00@V
  • ....Said electrical component linked with telephone operation HB CC 5K127
  • H04M1/00@Q
  • Coupling between telephone and another substation HB CC 5K127
  • H04M1/00@Z
  • Others HB CC 5K127
  • H04M1/02
  • .Constructional features of telephone sets HB CC 5K023
  • H04M1/02@A
  • Indication or button HB CC 5K023
  • H04M1/02@B
  • Special telephone (including a special structure or application) HB CC 5K023
  • H04M1/02@C
  • .Cordless telephones HB CC 5K023
  • H04M1/02@D
  • .Public telephone HB CC 5K023
  • H04M1/02@E
  • .Multi-function telephone HB CC 5K023
  • H04M1/02@F
  • ..Pushbutton telephone HB CC 5K023
  • H04M1/02@G
  • .Intercoms HB CC 5K023
  • H04M1/02@H
  • .Handset type HB CC 5K023
  • H04M1/02@J
  • .Decorative telephone HB CC 5K023
  • H04M1/02@Z
  • Others HB CC 5K023
  • H04M1/03
  • ..Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets [2] HB CC 5K023
  • H04M1/03@A
  • Handsets HB CC 5K023
  • H04M1/03@B
  • Microphone HB CC 5K023
  • H04M1/03@C
  • Receiver HB CC 5K023
  • H04M1/03@Z
  • Others HB CC 5K023
  • H04M1/04
  • ..Supports for telephone transmitters or receivers HB CC 5K023
  • H04M1/04@A
  • Base or stand HB CC 5K023
  • H04M1/04@B
  • Lifting and lowering devices for handsets HB CC 5K023
  • H04M1/04@Z
  • Others, e.g. handset engagement structures of telephone main units HB CC 5K023
  • H04M1/05
  • ...specially adapted for use on head, throat or breast HB CC 5K023
  • H04M1/05@A
  • put on head HB CC 5K023
  • H04M1/05@B
  • put on breast or shoulder HB CC 5K023
  • H04M1/05@C
  • put on ear HB CC 5K023
  • H04M1/05@Z
  • Others HB CC 5K023
  • H04M1/06
  • ...Hooks; Cradles HB CC 5K023
  • H04M1/06@A
  • Association of hook switches with other switches HB CC 5K023
  • H04M1/06@Z
  • Others HB CC 5K023
  • H04M1/08
  • ....associated with switches operated by the weight of the receiver or hand-set HB CC 5K023
  • H04M1/08@A
  • having one hook button HB CC 5K023
  • H04M1/08@B
  • having two hook buttons HB CC 5K023
  • H04M1/08@Z
  • Others HB CC 5K023
  • H04M1/10
  • ....associated with switches operated by magnetic effect due to proximity of receiver or hand-set HB CC 5K023
  • H04M1/11
  • ..Supports for sets, e.g. incorporating armrests HB CC 5K023
  • H04M1/11@A
  • Hang-on-the-wall type HB CC 5K023
  • H04M1/11@B
  • .co-used as the hang-on-the-wall type and desktop type HB CC 5K023
  • H04M1/11@C
  • for automobiles HB CC 5K023
  • H04M1/11@Z
  • Others HB CC 5K023
  • H04M1/12
  • ...Adjustable supports, e.g. extensible HB CC 5K023
  • H04M1/12@A
  • expandable HB CC 5K023
  • H04M1/12@B
  • .Horizontal direction HB CC 5K023
  • H04M1/12@C
  • .Vertical direction HB CC 5K023
  • H04M1/12@D
  • rotatable HB CC 5K023
  • H04M1/12@E
  • expandable and rotatable HB CC 5K023
  • H04M1/12@Z
  • Others HB CC 5K023
  • H04M1/13
  • ....pantographic HB CC 5K023
  • H04M1/14
  • ...with resilient means to eliminate extraneous vibrations HB CC 5K023
  • H04M1/15
  • ..Protecting or guiding telephone cords [5] HB CC 5K023
  • H04M1/17
  • ..Hygienic or sanitary devices on telephone equipment (for mouthpieces or earpieces H04R 1/12) [2] HB CC 5K023
  • H04M1/17@A
  • Covers for telephones HB CC 5K023
  • H04M1/17@B
  • Covers for handsets HB CC 5K023
  • H04M1/17@Z
  • Others HB CC 5K023
  • H04M1/18
  • ..Telephone setsspecially adapted for use in ships, mines, or other places exposed to adverse environment (H04M 1/19takes precedence) HB CC 5K023
  • H04M1/19
  • ..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 (circuit arrangements for preventing eavesdropping H04M 1/68; telephone cabinets E04H 1/14) HB CC 5K023
  • H04M1/19@A
  • Sent sound volume control HB CC 5K023
  • H04M1/19@B
  • .Sent sound shut-off structure HB CC 5K023
  • H04M1/19@Z
  • Others HB CC 5K023
  • H04M1/20
  • ..Arrangements for preventing acoustic feedback (H04M 1/62 takes precedence) HB CC 5K023
  • H04M1/21
  • ..Combinations with auxiliary equipment, e.g. with clocks ormemoranda pads HB CC 5K023
  • H04M1/21@A
  • Quick reference for directory numbers (directory number table display unit per se B42F17/34) HB CC 5K023
  • H04M1/21@B
  • Memo device HB CC 5K023
  • H04M1/21@C
  • Acoustic coupler HB CC 5K023
  • H04M1/21@E
  • Voice talk supplementary device HB CC 5K023
  • H04M1/21@D
  • .Telephone loudspeaker HB CC 5K023
  • H04M1/21@F
  • Hold tone generating device HB CC 5K023
  • H04M1/21@G
  • Watch or calculator HB CC 5K023
  • H04M1/21@H
  • Call holding device HB CC 5K023
  • H04M1/21@J
  • Pick-up HB CC 5K023
  • H04M1/21@K
  • Plates HB CC 5K023
  • H04M1/21@L
  • coupled with handset HB CC 5K023
  • H04M1/21@M
  • coupled with the telephone main unit HB CC 5K023
  • H04M1/21@N
  • .coupled with the dial HB CC 5K023
  • H04M1/21@P
  • coupled with the telephone support HB CC 5K023
  • H04M1/21@Z
  • Others HB CC 5K023
  • H04M1/215
  • ...by non-intrusive coupling means, e.g. acoustic couplers [7] HB CC 5K023
  • H04M1/22
  • ..Illumination; Arrangements for improving the visibility of characters on dials HB CC 5K023
  • H04M1/23
  • ..Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof (by improving visibility H04M 1/22) HB CC 5K023
  • H04M1/23@A
  • Pushbutton type dial (characterized by the dial symbol generator1/26-1/54) HB CC 5K023
  • H04M1/23@B
  • .Contact HB CC 5K023
  • H04M1/23@C
  • ..Reed switches HB CC 5K023
  • H04M1/23@D
  • .Pushbutton structure or arrangement HB CC 5K023
  • H04M1/23@E
  • .Contact drive or recovery mechanism HB CC 5K023
  • H04M1/23@F
  • .Casings, covers, display panels HB CC 5K023
  • H04M1/23@G
  • .configured on a printed circuit board HB CC 5K023
  • H04M1/23@H
  • .using a contactless switch HB CC 5K023
  • H04M1/23@J
  • Rotary dial (characterised by dial signal generator 1/26-1/54) HB CC 5K023
  • H04M1/23@K
  • .Number plates, indication plates HB CC 5K023
  • H04M1/23@L
  • .Finger plates HB CC 5K023
  • H04M1/23@M
  • .Finger stops HB CC 5K023
  • H04M1/23@N
  • Dial installation or layout HB CC 5K023
  • H04M1/23@P
  • Means for easy use HB CC 5K023
  • H04M1/23@Q
  • .Double-sided dial HB CC 5K023
  • H04M1/23@R
  • .for eye-handicapped people HB CC 5K023
  • H04M1/23@S
  • .having a means of number guidance HB CC 5K023
  • H04M1/23@T
  • Additional device or supplementary device for dial operation HB CC 5K023
  • H04M1/23@U
  • Automatic dial (other than the structure H04M1/27) HB CC 5K023
  • H04M1/23@Z
  • Others HB CC 5K023
  • H04M1/24
  • .Arrangements for testing HB CC 5K127
  • H04M1/24@A
  • Testing of substation device HB CC 5K127
  • H04M1/24@B
  • .Testing of the telephone HB CC 5K127
  • H04M1/24@C
  • ..Testing of the DP type telephone HB CC 5K127
  • H04M1/24@D
  • ..Testing of the MF type telephone HB CC 5K127
  • H04M1/24@E
  • ..Testing of the automatic dial type telephone HB CC 5K127
  • H04M1/24@F
  • ..Testing of the acoustic characteristics HB CC 5K127
  • H04M1/24@G
  • Line testing HB CC 5K127
  • H04M1/24@H
  • .Polarity identification test; conductor verification test HB CC 5K127
  • H04M1/24@J
  • Handset for testing HB CC 5K127
  • H04M1/24@Z
  • Others HB CC 5K127
  • H04M1/247
  • .Telephone sets including user guidance or feature selection means facilitating their use (user interfaces specially adapted for cordless or mobile telephones H04M 1/724) [2021.01] HB CC 5K127
  • H04M1/253
  • .Telephone sets using digital voice transmission [7] HB CC 5K127
  • H04M1/26
  • .Devices for calling a subscriber (H04M 1/66takes precedence) [1,7] HB CC 5K127
  • H04M1/27
  • ..Devices whereby a plurality of signals may be stored simultaneously [2] HB CC 5K127
  • H04M1/272
  • ...with provision for storing only one subscriber number at a time, e.g. by keyboard or dial [2] HB CC 5K127
  • H04M1/274
  • ...with provision for storing more than one subscriber number at a time [2] HB CC 5K127
  • H04M1/2745
  • .... using static electronic memories e.g. chips HB CC 5K127
  • H04M1/27453
  • ..... Directories allowing storage of additional subscriber data e.g. metadata HB CC 5K127
  • H04M1/27457
  • ...... Management thereof e.g. manual editing of data HB CC 5K127
  • H04M1/2746
  • ...... Sorting e.g. according to history or frequency of use HB CC 5K127
  • H04M1/27467
  • ..... Methods of retrieving data HB CC 5K127
  • H04M1/2747
  • ...... Scrolling on a display HB CC 5K127
  • H04M1/27475
  • ...... using interactive graphical means or pictorial representations HB CC 5K127
  • H04M1/2748
  • ...... by matching character strings HB CC 5K127
  • H04M1/27485
  • ..... Appending a prefix to or inserting a pause into a dialling sequence HB CC 5K127
  • H04M1/2749
  • ..... Automatic dialling or redialling systems e.g. on off-hook or redial on busy HB CC 5K127
  • H04M1/27495
  • ..... implemented by means of discrete electronic components i.e. neither programmable nor microprocessor-controlled (H04M1/27457-H04M1/2749 take precedence) HB CC 5K127
  • H04M1/275
  • .....implemented by means of portable electronic directories [7] HB CC 5K127
  • H04M1/2753
  • ..... providing data content HB CC 5K127
  • H04M1/2755
  • ...... by optical scanning HB CC 5K127
  • H04M1/2757
  • ...... by data transmission e.g. downloading HB CC 5K127
  • H04M1/276
  • ....using magnetic recording, e.g. on tape [2] HB CC 5K127
  • H04M1/278
  • ....using punched cards or tapes [2] HB CC 5K127
  • H04M1/30
  • ..Devices which can set up and transmit only one digit at a time HB CC 5K127
  • H04M1/31
  • ...by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses [2] HB CC 5K127
  • H04M1/31@A
  • Rotary dial HB CC 5K127
  • H04M1/31@B
  • .variable make rate HB CC 5K127
  • H04M1/31@C
  • .Insufficient finger-dialling, over-dialling compensation HB CC 5K127
  • H04M1/31@D
  • .Origination to a particular number enabled HB CC 5K127
  • H04M1/31@E
  • .for the intercoms; for ringing an extension HB CC 5K127
  • H04M1/31@F
  • Linear operation type dial HB CC 5K127
  • H04M1/31@G
  • Pushbutton type dial HB CC 5K127
  • H04M1/31@H
  • Dial pulse generating circuit HB CC 5K127
  • H04M1/31@Z
  • Others HB CC 5K127
  • H04M1/315
  • ....Clutches, spring assemblies, speed regulators, e.g. centrifugal brakes (H04M 1/32-H04M 1/40 take precedence) [3] HB CC 5K127
  • H04M1/315@A
  • Contact spring assembly, contact drive mechanism HB CC 5K127
  • H04M1/315@C
  • Speed adjusters, e.g. centrifugal brakes, dampers HB CC 5K127
  • H04M1/315@D
  • Recovery mechanisms, e.g. coil springs HB CC 5K127
  • H04M1/315@E
  • Rotation transmission mechanisms, e.g. shafts, gears HB CC 5K127
  • H04M1/315@Z
  • Others HB CC 5K127
  • H04M1/32
  • ....Locking setting devices during transmission to prevent interference by user HB CC 5K127
  • H04M1/34
  • ....Lost-motion or other arrangements for ensuring a pause between successive digit transmissions HB CC 5K127
  • H04M1/38
  • ....Pulses transmitted by a movement variably limited by the setting of a stop HB CC 5K127
  • H04M1/40
  • ....wherein the setting-operation short-circuits or open-circuits the transmitting mechanism during a variable part of a cycle HB CC 5K127
  • H04M1/50
  • ...by generating or selecting currents of predetermined frequencies or combinations of frequencies [2] HB CC 5K127
  • H04M1/515
  • ..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 [2] HB CC 5K127
  • H04M1/52
  • ..Arrangements wherein a dial or the like is mechanically coupled to a line selector HB CC 5K127
  • H04M1/53
  • ..Generation of additional signals, e.g. additional pulses [2] HB CC 5K127
  • H04M1/54
  • ...Arrangements wherein a dial or the like generates identifying signals, e.g. in party-line systems [2] HB CC 5K127
  • H04M1/56
  • .Arrangements for indicating or recording the called number at the calling subscriber's set HB CC 5K127
  • H04M1/57
  • .Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set (at the operator set in a manual exchange H04M 5/20) [2] HB CC 5K127
  • H04M1/58
  • .Anti-side-tone circuits HB CC 5K127
  • H04M1/58@A
  • using a balanced circuit network HB CC 5K127
  • H04M1/58@B
  • .Bridge type HB CC 5K127
  • H04M1/58@C
  • .Hybrid type HB CC 5K127
  • H04M1/58@Z
  • Others HB CC 5K127
  • H04M1/60
  • .including speech amplifiers HB CC 5K127
  • H04M1/60@A
  • Loudspeaker telephone HB CC 5K127
  • H04M1/60@B
  • .having a voice ringing mechanism HB CC 5K127
  • H04M1/60@C
  • .having a howling preventive function HB CC 5K127
  • H04M1/60@D
  • ..Controlling transmission and reception gains HB CC 5K127
  • H04M1/60@E
  • Power supply for voice amplifier supplied from the office line HB CC 5K127
  • H04M1/60@Z
  • Others HB CC 5K127
  • H04M1/62
  • ..Constructional arrangements HB CC 5K127
  • H04M1/64
  • .Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations (centralised dictation systems H04M 11/10) [1,7] HB CC 5K127
  • H04M1/64@D
  • Automatic voice response HB CC 5K127
  • H04M1/64@A
  • .using a tape recorder HB CC 5K127
  • H04M1/64@E
  • ..Drive mechanism HB CC 5K127
  • H04M1/64@B
  • .characterized by the structure HB CC 5K127
  • H04M1/64@F
  • Coupling automatic voice response with another function HB CC 5K127
  • H04M1/64@C
  • .Call data indication HB CC 5K127
  • H04M1/64@Z
  • Others HB CC 5K127
  • H04M1/64,101
  • ..Means of starting corresponding to ringing HB CC 5K127
  • H04M1/64,102
  • ..Termination means HB CC 5K127
  • H04M1/64,102@B
  • Termination by detecting a failure HB CC 5K127
  • H04M1/64,102@Z
  • Others HB CC 5K127
  • H04M1/64,103
  • ..Means for operation from another telephone HB CC 5K127
  • H04M1/64,103@A
  • Change or selection of automatic voice response details HB CC 5K127
  • H04M1/64,103@Z
  • Others HB CC 5K127
  • H04M1/65
  • ..Recording arrangements [2,7] HB CC 5K127
  • H04M1/65@A
  • Voice message recording HB CC 5K127
  • H04M1/65@B
  • .using two tape recorders HB CC 5K127
  • H04M1/65@C
  • ..Drive mechanism HB CC 5K127
  • H04M1/65@D
  • Starting means HB CC 5K127
  • H04M1/65@E
  • Termination means HB CC 5K127
  • H04M1/65@F
  • .Using a voice switch HB CC 5K127
  • H04M1/65@G
  • .Termination by detecting a failure HB CC 5K127
  • H04M1/65@H
  • Coupling voice message recording with other functions HB CC 5K127
  • H04M1/65@J
  • .Recording of other than voice messages HB CC 5K127
  • H04M1/65@K
  • .Call data indication HB CC 5K127
  • H04M1/65@L
  • .Means for operation from another telephone HB CC 5K127
  • H04M1/65@Q
  • ..Remote control signal circuit HB CC 5K127
  • H04M1/65@Z
  • Others HB CC 5K127
  • H04M1/652
  • ...Means for playing back the recorded messages by remote control over a telephone line (H04M 1/658 takes precedence) [7] HB CC 5K127
  • H04M1/652@A
  • Remote listening means HB CC 5K127
  • H04M1/652@B
  • .for voice messages HB CC 5K127
  • H04M1/652@C
  • .for call data HB CC 5K127
  • H04M1/652@Z
  • Others HB CC 5K127
  • H04M1/654
  • ...Telephone line monitoring circuits therefor, e.g. ring detectors [7] HB CC 5K127
  • H04M1/656
  • ...for recording conversations [7] HB CC 5K127
  • H04M1/658
  • ...Means for redirecting recorded messages to other extensions or equipment [7] HB CC 5K127
  • H04M1/66
  • .with means for preventing unauthorised or fraudulent calling (verifying user identity or authority in secret or secure digital communications H04L 9/32) [1,7] HB CC 5K127
  • H04M1/663
  • ..Preventing unauthorised calls to a telephone set [7] HB CC 5K127
  • H04M1/665
  • ...by checking the validity of a code [7] HB CC 5K127
  • H04M1/667
  • ..Preventing unauthorised calls from a telephone set (H04M 1/677 takes precedence) [7] HB CC 5K127
  • H04M1/67
  • ...by electronic means [7] HB CC 5K127
  • H04M1/673
  • ....the user being required to key in a code [7] HB CC 5K127
  • H04M1/675
  • ....the user being required to insert a coded card, e.g. a smart card carrying an integrated circuit chip [7] HB CC 5K127
  • H04M1/677
  • ..Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers, e.g. long distance numbers [7] HB CC 5K127
  • H04M1/68
  • .Circuit arrangements for preventing eavesdropping HB CC 5K127
  • H04M1/70
  • ..Lock-out or secrecy arrangements in party-line systems HB CC 5K127
  • H04M1/71
  • .Substation extension arrangements [2021.01] HB CC 5K127
  • H04M1/715
  • ..using two or more extensions per line (cordless telephones H04M 1/725) [2021.01] HB CC 5K127
  • H04M1/72
  • .Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection [2021.01] HB CC 5K127
  • H04M1/724
  • ..User interfaces specially adapted for cordless or mobile telephones [2021.01] HB CC 5K127
  • H04M1/72403
  • ...with means for local support of applications that increase the functionality [2021.01] HB CC 5K127
  • H04M1/72406
  • ....by software upgrading or downloading [2021.01] HB CC 5K127
  • H04M1/72409
  • ....by interfacing with external accessories (hands-free H04M 1/60) [2021.01] HB CC 5K127
  • H04M1/72412
  • .....using two-way short-range wireless interfaces [2021.01] HB CC 5K127
  • H04M1/72415
  • .....for remote control of appliances [2021.01] HB CC 5K127
  • H04M1/72418
  • ....for supporting emergency services [2021.01] HB CC 5K127
  • H04M1/72421
  • .....with automatic activation of emergency service functions, e.g. upon sensing an alarm [2021.01] HB CC 5K127
  • H04M1/72424
  • .....with manual activation of emergency-service functions [2021.01] HB CC 5K127
  • H04M1/72427
  • ....for supporting games or graphical animations [2021.01] HB CC 5K127
  • H04M1/7243
  • ....with interactive means for internal management of messages [2021.01] HB CC 5K127
  • H04M1/72433
  • .....for voice messaging, e.g. dictaphones (for answering incoming calls H04M 1/64) [2021.01] HB CC 5K127
  • H04M1/72436
  • .....for text messaging, e.g. SMS or e-mail [2021.01] HB CC 5K127
  • H04M1/72439
  • .....for image or video messaging [2021.01] HB CC 5K127
  • H04M1/72442
  • ....for playing music files [2021.01] HB CC 5K127
  • H04M1/72445
  • ....for supporting Internet browser applications [2021.01] HB CC 5K127
  • H04M1/72448
  • ...with means for adapting the functionality of the device according to specific conditions [2021.01] HB CC 5K127
  • H04M1/72451
  • ....according to schedules, e.g. using calendar applications [2021.01] HB CC 5K127
  • H04M1/72454
  • ....according to context-related or environment-related conditions [2021.01] HB CC 5K127
  • H04M1/72457
  • ....according to geographic location [2021.01] HB CC 5K127
  • H04M1/7246
  • ....by connection of exchangeable housing parts [2021.01] HB CC 5K127
  • H04M1/72463
  • ....to restrict the functionality of the device [2021.01] HB CC 5K127
  • H04M1/72466
  • ...with selection means, e.g. keys, having functions defined by the mode or the status of the device [2021.01] HB CC 5K127
  • H04M1/72469
  • ...for operating the device by selecting functions from two or more displayed items, e.g. menus or icons [2021.01] HB CC 5K127
  • H04M1/72472
  • ....wherein the items are sorted according to specific criteria, e.g. frequency of use [2021.01] HB CC 5K127
  • H04M1/72475
  • ...specially adapted for disabled users [2021.01] HB CC 5K127
  • H04M1/72478
  • ....for hearing-impaired users [2021.01] HB CC 5K127
  • H04M1/72481
  • ....for visually impaired users [2021.01] HB CC 5K127
  • H04M1/72484
  • ...wherein functions are triggered by incoming communication events [2021.01] HB CC 5K127
  • H04M1/725
  • ..Cordless telephones (user interfaces specially adapted therefor H04M 1/724) [2021.01] HB CC 5K127
  • H04M1/72502
  • ...with one base station connected to a single line [2021.01] HB CC 5K127
  • H04M1/72505
  • ....Radio link set-up procedures [2021.01] HB CC 5K127
  • H04M1/72508
  • .....using a control channel [2021.01] HB CC 5K127
  • H04M1/72511
  • .....Searching for available channels [2021.01] HB CC 5K127
  • H04M1/72513
  • .....On-hold, intercom or transfer communication modes [2021.01] HB CC 5K127
  • H04M1/72516
  • ....with means for out-of-range alerting [2021.01] HB CC 5K127
  • H04M1/727
  • ...Identification code transfer arrangements [7] HB CC 5K127
  • H04M1/73
  • ...Battery saving arrangements [7] HB CC 5K127
  • H04M1/733
  • ...with a plurality of base stations connected to a plurality of lines [7] HB CC 5K127
  • H04M1/737
  • ...characterised by transmission of electromagnetic waves other than radio waves, e.g. infra-red waves [7] HB CC 5K127
  • H04M1/738
  • .Interface circuits for coupling substations to external telephone lines (H04M 1/78 takes precedence) [7] HB CC 5K127
  • H04M1/74
  • ..with means for reducing interference; with means for reducing effects due to line faults HB CC 5K127
  • H04M1/76
  • ..Compensating for differences in line impedance HB CC 5K127
  • H04M1/76@A
  • compensating voice signal channel loss HB CC 5K127
  • H04M1/76@B
  • for the sidetone preventive circuit HB CC 5K127
  • H04M1/76@Z
  • Others HB CC 5K127
  • H04M1/78
  • .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 [2] HB CC 5K127
  • H04M1/80
  • .Telephone line holding circuits [7] HB CC 5K127
  • H04M1/82
  • .Line monitoring circuits for call progress or status discrimination [7] HB CC 5K127
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