SE384959B - Telefontillsats - Google Patents

Telefontillsats

Info

Publication number
SE384959B
SE384959B SE7502351A SE7502351A SE384959B SE 384959 B SE384959 B SE 384959B SE 7502351 A SE7502351 A SE 7502351A SE 7502351 A SE7502351 A SE 7502351A SE 384959 B SE384959 B SE 384959B
Authority
SE
Sweden
Prior art keywords
phone
addition
phone addition
Prior art date
Application number
SE7502351A
Other languages
English (en)
Swedish (sv)
Other versions
SE7502351L (xx
Inventor
Abram Nathaniel Spanel
Original Assignee
Abram Nathaniel Spanel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Abram Nathaniel Spanel filed Critical Abram Nathaniel Spanel
Publication of SE7502351L publication Critical patent/SE7502351L/xx
Publication of SE384959B publication Critical patent/SE384959B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/28—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal
    • H04M15/30—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP with meter at substation or with calculation of charges at terminal the meter or calculation of charges not being controlled from an exchange
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/21—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads
    • H04M1/215—Combinations with auxiliary equipment, e.g. with clocks or memoranda pads by non-intrusive coupling means, e.g. acoustic couplers
    • H04M1/2155—Acoustic coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/64—Automatic arrangements for answering calls; Automatic arrangements for recording messages for absent subscribers; Arrangements for recording conversations
    • H04M1/65—Recording arrangements for recording a message from the calling party
    • H04M1/656—Recording arrangements for recording a message from the calling party for recording conversations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
SE7502351A 1974-03-04 1975-03-03 Telefontillsats SE384959B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US447690A US3887771A (en) 1974-03-04 1974-03-04 Telephone adapter

Publications (2)

Publication Number Publication Date
SE7502351L SE7502351L (xx) 1975-09-05
SE384959B true SE384959B (sv) 1976-05-24

Family

ID=23777345

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7502351A SE384959B (sv) 1974-03-04 1975-03-03 Telefontillsats

Country Status (14)

Country Link
US (1) US3887771A (xx)
JP (1) JPS50126106A (xx)
AU (1) AU7848375A (xx)
BE (1) BE826226A (xx)
BR (1) BR7501232A (xx)
CA (1) CA1022854A (xx)
CH (1) CH584991A5 (xx)
DE (1) DE2508387A1 (xx)
DK (1) DK82475A (xx)
FR (1) FR2263647B1 (xx)
GB (1) GB1493535A (xx)
IT (1) IT1029866B (xx)
NL (1) NL7502268A (xx)
SE (1) SE384959B (xx)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3928723A (en) * 1973-07-02 1975-12-23 Kazuo Kai Telephone set with built-in loudspeaker
US4115659A (en) * 1977-06-16 1978-09-19 Abram N. Spanel Electroacoustical telephone adapter
US4362905A (en) * 1980-01-29 1982-12-07 Nassar Ismail Universal adapters for modular plug telephones
US4326102A (en) * 1980-02-04 1982-04-20 Msi Data Corporation Audio data transmission device with coupling device
US5291541A (en) * 1992-12-21 1994-03-01 At&T Bell Laboratories Coupling apparatus for telephone handsets
US5613222A (en) * 1994-06-06 1997-03-18 The Creative Solutions Company Cellular telephone headset for hand-free communication
US5850439A (en) * 1996-02-20 1998-12-15 Cotron Corporation Hands-free phone converter
TWI500609B (zh) 2007-06-12 2015-09-21 Solvay 含有環氧氯丙烷的產品，其製備及其不同應用中的用途
GB2483308A (en) * 2010-09-06 2012-03-07 Jack Kemp Docking device with pickup coil coupled to electromagnetic transducer
US10418955B2 (en) * 2017-04-10 2019-09-17 Language Line Services, Inc. Process for acoustic amplification in a mobile device application

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US799659A (en) * 1905-05-24 1905-09-19 George Griffin Lewis Ear-trumpet.
US2609045A (en) * 1951-04-16 1952-09-02 Henry R Kaiser Timer attachment for telephones
US2987575A (en) * 1955-11-10 1961-06-06 Norman L Chalfin Two way telephone handset amplifying system
US3376390A (en) * 1958-12-30 1968-04-02 Hashimoto Kazuo Telephone answering device
US3512355A (en) * 1967-10-26 1970-05-19 Goldentone Electronics Inc Telephone timing device

Also Published As

Publication number Publication date
FR2263647B1 (xx) 1980-05-30
FR2263647A1 (xx) 1975-10-03
IT1029866B (it) 1979-03-20
JPS50126106A (xx) 1975-10-03
NL7502268A (nl) 1975-09-08
DE2508387A1 (de) 1975-09-11
CH584991A5 (xx) 1977-02-15
US3887771A (en) 1975-06-03
SE7502351L (xx) 1975-09-05
BR7501232A (pt) 1975-12-02
DK82475A (xx) 1975-11-03
CA1022854A (en) 1977-12-20
GB1493535A (en) 1977-11-30
AU7848375A (en) 1976-08-26
BE826226A (fr) 1975-09-03

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