Substation equipment

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION

H04M1/00Substation equipment

H04M1/003Telephone sets using electrooptical means in the transmission path H04M1/006Call diverting means H04M1/02Constructional features of telephone sets H04M1/0202Portable telephone sets H04M1/0206Portable telephones comprising a plurality of mechanically joined movable body parts H04M1/0208characterized by the relative motions of the body parts H04M1/021using combined folding and rotation motions H04M1/0212with a two degrees of freedom mechanism H04M1/0214Foldable telephones H04M1/0216Foldable in one direction H04M1/0218The hinge comprising input and/or output user interface means H04M1/022The hinge comprising two parallel pivoting axes H04M1/0222Foldable in two directions H04M1/0225Rotatable telephones H04M1/0227Rotatable in one plane H04M1/0229The hinge comprising input and/or output user interface means H04M1/0231Including a rotatable keypad body part H04M1/0233Including a rotatable display body part H04M1/0235Slidable or telescopic telephones H04M1/0237Sliding mechanism with one degree of freedom H04M1/0239Sliding mechanism with two degree of freedom H04M1/0241using relative motion of the body parts to change the operational status of the telephone set H04M1/0243using the relative angle between housings H04M1/0245using open/close detection H04M1/0247comprising more than two body parts H04M1/0249Details of the mechanical connection between the housing parts or relating to the method of assembly H04M1/0252by means of a snap-on mechanism H04M1/0254comprising one or a plurality of mechanically detachable modules H04M1/0256wherein the modules are operable in the detached state H04M1/0258for a headset device H04M1/026Details of the structure or mounting of specific components H04M1/0262for a battery compartment H04M1/0264for a camera module assembly H04M1/0266for a display module assembly H04M1/0268including a flexible display panel H04M1/027including magnifying means H04M1/0272for a projector or beamer module assembly H04M1/0274for an electrical connector module H04M1/0277for a printed circuit board assembly H04M1/0279Improving the user comfort or ergonomics H04M1/0281for providing single handed use or left/right hand conversion H04M1/0283for providing a decorative aspect H04M1/0285Pen-type handsets H04M1/0287being disposable or recyclable H04M1/0289Telephone sets for operators H04M1/0291Door telephones H04M1/0293Terminal boxes for telephone sets H04M1/0295mechanical mounting details of display modules H04M1/0297Telephone sets adapted to be mounted on a desk or on a wall H04M1/03Constructional features of telephone transmitters or receivers H04M1/035Improving the acoustic characteristics by means of constructional features of the housing H04M1/04Supports for telephone transmitters or receivers H04M1/05adapted for use on head, throat, or breast H04M1/06Hooks Cradles H04M1/08associated with switches operated by weight of receiver or hand-set H04M1/10associated with switches operated by magnetic effect due to proximity of receiver or hand-set H04M1/11Supports for sets H04M1/12Adjustable supports H04M1/13pantographic H04M1/14with resilent means to eliminate extraneous vibrations H04M1/15Protection of telephone cord Guiding telephone cord Winding-up telephone cord H04M1/17Hygienic or sanitary devices on telephone equipment H04M1/18Telephone sets modified for use in ships, mines, or other places exposed to adverse environment H04M1/185Improving the rigidity of the casing or resistance to shocks H04M1/19Arrangements of transmitters, receivers, or complete sets to prevent eavesdropping, to attenuate local noise or to prevent undesired transmission Special mouthpieces or receivers therefor H04M1/20Arrangements for preventing acoustic feed-back H04M1/21Combinations with auxiliary equipment H04M1/215by non-intrusive coupling means H04M1/2155Acoustic coupling H04M1/22Illuminating Arrangements for improving visibility of characters on dials H04M1/23Construction or mounting of dials or of equivalent devices Means for facilitating the use thereof H04M1/233including a pointing device H04M1/236including keys on side or rear faces H04M1/24Arrangements for testing H04M1/247Telephone sets including user guidance or features selection means facilitating their use; Fixed telephone terminals for accessing a variety of communication services via the PSTN network H04M1/2471Configurable and interactive telephone terminals with subscriber controlled features modifications H04M1/2472with programmable function keys H04M1/2473Telephone terminals interfacing a personal computer H04M1/2474Telephone terminals specially adapted for disabled people H04M1/2475for a hearing impaired user H04M1/2476for a visually impaired user H04M1/2477for selecting a function from a menu display H04M1/2478Telephone terminals specially adapted for non-voice services H04M1/253Telephone sets using digital voice transmission H04M1/2535adapted for voice communication over an Internet Protocol [IP] network H04M1/26Devices for signalling identity of wanted subscriber H04M1/27Devices whereby a plurality of signals may be stored simultaneously H04M1/271controlled by voice recognition H04M1/272with provision for storing only one subscriber number at a time H04M1/2725using electronic memories H04M1/274with provision for storing more than one subscriber number at a time H04M1/2745using static electronic memories, i.e. memories whose operation does not require relative movement between storage means and a transducer H04M1/274508Telephone number directory allowing to store a plurality of information regarding one subscriber H04M1/274516whose content are provided by data transmission or downloaded H04M1/274525Retrieving by scrolling on a display H04M1/274533Telephone number directory management H04M1/27455Retrieving by interactive graphical means or pictorial representation H04M1/274558Retrieving by matching an alphabetic string H04M1/274566Appending a prefix or inserting a pause to a dialling sequence H04M1/274575Automatic call origination and retry systems H04M1/274583Sorted according to a specific criteria H04M1/274591Implemented by means of discrete electronic components H04M1/275implemented by means of portable electronic directories H04M1/2755whose contents are provided by optical scanning H04M1/276using magnetic recording H04M1/2765implemented by means of portable magnetic cards H04M1/278using punched cards or tapes H04M1/30Devices which can set up and transmit only one digit at a time H04M1/31by interrupting current to generate trains of pulses by periodically opening and closing contacts to generate trains of pulses H04M1/312pulses produced by electronic circuits H04M1/315Clutches Spring assemblies Speed regulators H04M1/32Locking setting devices during transmission to prevent interference by user H04M1/34Lost-motion or other arrangements for ensuring a pause between successive digit transmissions H04M1/38Pulses transmitted by a movement variably limited by the setting of a stop H04M1/40wherein the setting-operation short-circuits or open-circuits the transmitting mechanism during a variable part of a cycle H04M1/50by generating or selecting currents of predetermined frequencies or combinations of frequencies H04M1/505signals generated in digital form H04M1/515by generating or selecting other signals than trains of pulses of similar shape or other signals than currents of one or more different frequencies H04M1/52Arrangements wherein a dial or equivalent is mechanically coupled to a line selector H04M1/53Generation of additional signals H04M1/54Arrangements wherein a dial or equivalent generates identifying signals H04M1/56Arrangements for indicating or recording the called number at the calling subscriber's set H04M1/57Arrangements for indicating or recording the number of the calling subscriber at the called subscriber's set H04M1/571Blocking transmission of caller identification to called party H04M1/573Line monitoring circuits for detecting caller identification H04M1/575Means for retrieving and displaying personal data about calling party H04M1/576associated with a pictorial or graphical representation H04M1/578associated with a synthesized vocal announcement H04M1/58Anti-side-tone circuits H04M1/585implemented without inductive element H04M1/60including speech amplifiers H04M1/6008in the transmitter circuit H04M1/6016in the receiver circuit H04M1/6025implemented as integrated speech networks H04M1/6033for providing handsfree use or a loudspeaker mode in telephone sets H04M1/6041Portable telephones adapted for handsfree use H04M1/605involving control of the receiver volume to provide a dual operational mode at close or far distance from the user H04M1/6058involving the use of a headset accessory device connected to the portable telephone H04M1/6066including a wireless connection H04M1/6075adapted for handsfree use in a vehicle H04M1/6083by interfacing with the vehicle audio system H04M1/6091including a wireless interface H04M1/62Constructional arrangements H04M1/64Automatic arrangements for answering calls Automatic arrangements for recording messages for absent subscribers Arrangements for recording conversations H04M1/642storing speech in digital form H04M1/645with speech synthesis H04M1/647using magnetic tape H04M1/65Recording arrangements for recording a message from the calling party H04M1/6505storing speech in digital form H04M1/651with speech synthesis H04M1/6515using magnetic tape H04M1/652Means for playing back the recorded messages by remote control over a telephone line H04M1/654Telephone line monitoring circuits therefor H04M1/6545mechanically actuating hook switch H04M1/656for recording conversations H04M1/658Means for redirecting recorded messages to other extensions or equipment H04M1/66with means for preventing unauthorised or fraudulent calling H04M1/663Preventing unauthorised calls to a telephone set H04M1/665by checking the validity of a code H04M1/667Preventing unauthorised calls from a telephone set H04M1/67by electronic means H04M1/673the user being required to key in a code H04M1/675the user being required to insert a coded card H04M1/677Preventing the dialling or sending of predetermined telephone numbers or selected types of telephone numbers H04M1/6775by providing access to preprogrammed keys H04M1/68Circuit arrangements for preventing eavesdropping H04M1/70Lock-out or secrecy arrangements in party-line systems H04M1/72Substation extension arrangements Cordless telephones H04M1/723using two or more extensions per line H04M1/725Cordless telephones H04M1/72502with one base station connected to a single line H04M1/72505Radio link set-up procedure H04M1/72508using a control channel H04M1/72511Searching for an available channel H04M1/72513On hold, intercom or transfer communication modes H04M1/72516including out-of-range alerting means H04M1/72519Portable communication terminals with improved user interface to control a main telephone operation mode or to indicate the communication status H04M1/72522With means for supporting locally a plurality of applications to increase the functionality H04M1/72525provided by software upgrading or downloading H04M1/72527provided by interfacing with an external accessory H04M1/7253using a two-way short-range wireless interface H04M1/72533for remote control of appliances H04M1/72536for supporting an emergency service H04M1/72538with automatic feature activation H04M1/72541with manual feature activation H04M1/72544for supporting a game or graphical animation H04M1/72547with interactive input/output means for internally managing multimedia messages H04M1/7255for voice messaging H04M1/72552for text messaging H04M1/72555for still or moving picture messaging H04M1/72558for playing back music files H04M1/72561for supporting an internet browser application H04M1/72563with means for adapting by the user the functionality or the communication capability of the terminal under specific circumstances H04M1/72566according to a schedule or a calendar application H04M1/72569according to context or environment related information H04M1/72572according to a geographic location H04M1/72575by connection of an exchangeable housing part H04M1/72577to restrict the functionality or the communication capability of the terminal H04M1/7258by using keys with multiple functionality defined by the current phone mode or status H04M1/72583for operating the terminal by selecting telephonic functions from a plurality of displayed items H04M1/72586wherein the items are sorted according to a specific criteria H04M1/72588specially adapted for disabled people H04M1/72591for a hearing impaired user H04M1/72594for a visually impaired user H04M1/72597wherein handling of applications is triggered by incoming communication events H04M1/727Identification code transfer arrangements H04M1/73Battery saving arrangements H04M1/733with a plurality of base stations connected to a plurality of lines H04M1/737characterised by transmission of electromagnetic waves other than radio waves H04M1/738Interface circuits for coupling substations to external telephone lines H04M1/7385Programmable or microprocessor-controlled H04M1/74with means for reducing interference with means for reducing effects due to line faults H04M1/745Protection devices or circuits for voltages surges on the line H04M1/76Compensating for differences in line impedance H04M1/78Circuit 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 H04M1/80Telephone line holding circuits H04M1/82Line monitoring circuits for call progress or status discrimination