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Answering machine

An answering machine, also known as a telephone answering device (TAD), is an electronic device connected to a telephone line that automatically answers incoming calls at a predetermined ring and records audio messages from callers for later playback by the recipient.^[1] These devices typically feature an outgoing message recorded by the user, a recording mechanism for incoming messages, and playback controls, evolving from mechanical tape systems to digital storage in later models.^[2] The origins of answering machines trace back to the late 19th century, with early experiments in recording telephone signals building on Thomas Edison's 1877 phonograph invention, which was initially conceived for capturing phone conversations.^[3] Danish engineer Valdemar Poulsen patented the Telegraphone in the late 1890s, the first practical magnetic wire recorder designed for automatic telephone answering and message storage, though it saw limited commercial success due to technical complexities.^[3] By the 1930s, Bell Labs developed a more compact prototype using electronic circuits, but regulatory restrictions from AT&T and privacy concerns halted widespread adoption until after World War II.^[3] Commercial viability emerged in the mid-20th century, with Japanese inventor Kazuo Hashimoto introducing the Ansafone in 1960, the first answering machine sold in the United States, followed by the PhoneMate 400 in 1971, a consumer-friendly reel-to-reel model that weighed 10 pounds, held up to 20 messages, and sold for about $300.^[1]^[2] The 1980s marked a surge in popularity after the AT&T monopoly breakup in 1984, enabling deregulation and innovations like digital recording (patented by Hashimoto in 1983) and remote message retrieval.^[3]^[1] By the mid-1990s, nearly three-quarters of U.S. households owned one, fostering cultural shifts toward constant availability, call screening, and personalized communication, though they later declined with the rise of voicemail services and mobile phones.^[4]^[2]

History

Early inventions and patents

The development of the answering machine began in the late 19th century with pioneering efforts to record and reproduce telephone messages using emerging sound recording technologies. In 1898, Danish engineer Valdemar Poulsen invented the telegraphone, the first practical device for magnetic sound recording, which utilized a thin steel wire to capture audio via electromagnetic induction. Poulsen filed patents for the telegraphone in Denmark and several other countries, including the United States (U.S. Patent No. 661619 in 1900), envisioning it primarily as a telephone answering machine capable of storing up to 30 minutes of dictation for playback. The device worked by magnetizing the wire as sound vibrations from a telephone receiver drove an electromagnet, allowing messages to be recorded remotely and replayed by passing the wire over a playback head.^[5]^[6]^[7] Building on earlier sound recording principles, American inventor Thomas Edison adapted his 1877 phonograph for telephone applications in the 1890s, focusing on cylinder-based systems to capture dictated messages or calls. Edison's initial phonograph, patented as U.S. Patent No. 200521, used tinfoil-wrapped cylinders to emboss sound waves, but by the 1890s, improvements shifted to wax cylinders for better durability and fidelity in business settings, including telephone recording attachments that connected directly to phone lines. A key evolution was the 1903 Ediphone, a portable dictation machine featuring solid wax cylinders up to four inches long, which allowed office workers to record and transcribe telephone conversations or memos via a speaking tube and stylus mechanism, though it required manual operation and was not fully automatic. These adaptations laid groundwork for message storage but were limited to local use rather than unattended answering.^[8]^[9]^[10] In the 1920s, German-born inventor Ludwig Blattner advanced magnetic recording with the Blattnerphone, a system using 3 mm wide and 0.08 mm thick steel tape for audio capture, building on patents acquired from Swedish engineer Kurt Stille's wire recorder designs. Blattnerphone machines, introduced around 1928, employed large reels of magnetizable steel tape to record sound electromagnetically, offering longer recording times (up to 20 minutes per reel) compared to wire systems and enabling applications like telephone message logging for broadcasting and business. Blattner secured British patents (e.g., GB Patent No. 329455 in 1930) and partnered with companies to produce these devices, which the BBC tested for archival purposes, though their bulk and cost restricted widespread adoption.^[11]^[12]^[13] By the early 1930s, AT&T's Bell Laboratories experimented with automatic telephone answering using vacuum tube relays to detect incoming calls and switch to recording circuits. In 1934, engineers developed a prototype that answered calls after a set number of rings via relay-controlled vacuum tubes, playing a prerecorded greeting and recording messages on wax discs or early tape, tested internally for six months on lab lines. These systems relied on electromagnetic relays amplified by vacuum tubes for reliable switching, marking an early step toward unattended operation (U.S. Patent No. 2,115,343 filed in 1935). However, AT&T withheld commercialization due to concerns over network impacts.^[14] Early answering technologies faced significant hurdles, including poor audio fidelity from mechanical distortions in wax cylinders and wire media, which often resulted in muffled or noisy playback unsuitable for clear message comprehension. Mechanical unreliability plagued devices like the telegraphone and Ediphone, with issues such as wire tangling, cylinder warping from heat, and the need for constant manual adjustments leading to frequent failures in unattended use. The transition from fragile wax cylinders to more robust wire and tape media in the 1920s improved durability but introduced new challenges like heavy tape weight and electromagnetic interference, delaying practical viability until post-1930s refinements.^[6]^[9]^[11]

Commercialization and legal challenges

The first practical automatic answering machine was invented by German engineer Willy Müller in 1935, utilizing magnetic steel wire for recording messages.^[1] This device, known as the Tele-Phonograph, stood about three feet tall and gained niche popularity among Orthodox Jews in Europe who observed religious prohibitions against answering phones on the Sabbath, but its commercialization remained limited due to the device's complexity, high cost, and the impending World War II disruptions across the continent.^[15] Distribution was confined primarily to select European markets, with no widespread adoption before the war halted further development.^[1] In the United States, commercialization began in the late 1940s amid post-war technological optimism, though it faced significant barriers from the telecommunications monopoly. The Electronic Secretary, introduced in 1949 by the Gray Manufacturing Company, became one of the earliest commercially available models, using magnetic wire for recording up to 30 minutes of messages and a phonograph record for the outgoing greeting.^[16] Western Electric, the manufacturing arm of AT&T, followed with its Peatrophone in 1951, a bulky 40-pound device leased exclusively to businesses at around $80 per month, reflecting the high costs and limited accessibility of early systems.^[17] These initial products were marketed mainly to professionals and small offices, with retail prices for non-AT&T models ranging from $200 to $300, equivalent to several weeks' wages for many households.^[18] The primary legal challenge stemmed from AT&T's dominant control over the U.S. telephone network, which prohibited the direct connection of third-party devices to prevent potential interference or safety issues. This "foreign attachment" policy, enforced through tariffs and service agreements, effectively stifled independent commercialization until the 1968 Carterfone decision by the FCC, which mandated open interconnection and paved the way for broader market entry.^[14] Some states imposed additional restrictions on unattended telephone operations, requiring manual intervention or operator assistance in certain jurisdictions to comply with public utility regulations, further delaying residential adoption.^[19] By the late 1950s, early business models diversified, exemplified by the introduction of dual-cassette systems that separated outgoing announcements from incoming messages for easier management. Japanese manufacturers, including Panasonic, entered the market in the early 1960s with affordable, reliable units like the Easa-Phone series, which sold for approximately $200–$300 and helped lower barriers to entry through innovative tape-based designs.^[18] These developments marked a shift toward more viable commercial ecosystems, though high prices and regulatory hurdles continued to limit penetration to business users.^[16]

Popularization in the late 20th century

The adoption of answering machines accelerated in the 1970s and 1980s as technological advancements made them more affordable and user-friendly for home use. The introduction of cassette-based models significantly lowered costs and improved reliability, with devices from manufacturers like Sony, which released models such as the TAM-50 using compact cassettes for message recording, and Dictaphone, known for its Ansafone series introduced in 1960, playing a key role in driving consumer interest. These innovations allowed for easier operation compared to earlier reel-to-reel systems, contributing to a surge in sales; by the mid-1980s, U.S. household penetration had reached about 13 percent, up from near negligible levels a decade earlier.^[20]^[21]^[22] Key refinements further enhanced functionality and appeal during this period. Philips pioneered the use of endless-loop tape cassettes for continuous operation in answering machines starting in the late 1960s, enabling seamless playback of outgoing messages without manual intervention. In the 1970s, the addition of time and date stamps became a standard feature in many models, such as those from AT&T like the Model 1740, allowing users to track when messages were received for better organization. These developments, combined with falling prices below $100 by the mid-1980s, helped solidify answering machines as a household essential in the United States, where annual sales exceeded 1 million units by the late 1980s.^[23]^[18]^[24] The technology's popularity spread globally during the 1980s, particularly in Europe and Asia, where local manufacturing by Asian firms flooded markets with inexpensive variants, adapting designs for regional telephone systems. In Europe, adoption lagged slightly behind the U.S. but grew steadily, with devices becoming common in urban households by the decade's end; for instance, in Switzerland, widespread use emerged in the late 1980s amid broader telecommunications liberalization. A notable regulatory milestone influencing this expansion was the U.S. Federal Communications Commission's 1975 requirement for a beep tone—typically 3 to 5 seconds long—on recording devices to alert callers that their conversation was being captured, promoting privacy and standardizing practices that encouraged international compatibility.^[25]^[26]^[27] By the early 1990s, answering machines reached peak popularity in the U.S., with household penetration climbing to around 40 percent and annual shipments surpassing 1 million units, reflecting their ubiquity before the rise of telephone company voicemail services. However, the 1990s saw a gradual decline in physical hardware demand as integrated voicemail became standard with landline subscriptions, offering remote access without dedicated devices; by the mid-1990s, nearly 75 percent of U.S. households had some form of message-taking capability, but traditional machines began fading as voicemail adoption reached 78 percent by 2004. This shift marked the transition from standalone hardware to network-based solutions, reducing annual hardware sales significantly by the decade's end.^[28]^[4]^[29]

Technical evolution

Analog and mechanical systems

Analog and mechanical answering machines operated through electromechanical hardware that detected incoming calls and managed audio playback and recording via physical media. Ring detectors primarily utilized electromechanical relays to sense the AC ringing voltage—typically 75-90 volts at 20 Hz—on the telephone line, activating after a set number of rings to simulate an off-hook state and connect the circuit. Capacitors in the detection circuitry filtered the signal and provided timing delays to prevent false triggers from line noise. In earlier models restricted from direct line attachment, mechanical sensors like ball bearings and microswitches responded to vibrations from the phone's bell, indirectly initiating the response. These devices centered on magnetic tape for message handling, with many featuring dual-cassette configurations: one endless-loop cassette for the outgoing greeting (often 10-60 seconds long) and a second for incoming messages. Audio from the phone line passed through recording heads that aligned magnetic particles on the tape to capture sound waves, while erase mechanisms—employing high-frequency bias signals around 100 kHz—demagnetized sections of the tape to prepare for new recordings, preventing overlap or distortion. Tape transport mechanisms included capstans and pinch rollers to maintain consistent movement, operating at a standard speed of 1.875 inches per second (4.76 cm/s) to ensure intelligible audio fidelity without excessive tape consumption. Some analog systems supported pure voice operation, particularly in 1950s business applications, where pre-recorded announcements informed callers of unavailability or instructions without the capability to store incoming messages, relying instead on simple playback from a phonograph record or short tape loop to minimize complexity and cost. These announcement-only models, such as the announcement mode of the Peatrophone rented by Bell affiliates, played messages like office hours before disconnecting the call.^[17] Key limitations included progressive tape wear from friction and magnetic degradation, reducing playback clarity over time and necessitating periodic replacement. Message storage was constrained to 10-30 minutes total on standard C-30 or C-60 cassettes, after which the device would stop recording or overwrite to avoid overflow. Power demands centered on AC mains for motors and amplifiers, with some units incorporating battery backups to sustain basic functions like ring detection and greeting playback during brief outages of up to 2 hours.

Digital and solid-state systems

The transition to digital and solid-state systems in answering machines began in the late 1980s and accelerated through the 1990s, replacing mechanical tape mechanisms with electronic components for enhanced reliability and performance. These systems utilized integrated circuits and solid-state memory, such as EEPROM and early flash memory, to store audio without moving parts, enabling quieter operation and reduced wear. By the mid-1990s, devices like the Sony TAM-1000 offered up to 9 minutes of digital storage using such memory, marking a significant shift from analog limitations like tape degradation.^[18] Solid-state memory in these machines typically provided 30–60 minutes of recording capacity by the late 1990s, with non-volatile EEPROM retaining messages even during power outages. For instance, the Sony TAM-100 model from 1999 supported 15 minutes of storage via digital chips, while later expansions in the 2000s incorporated flash memory for greater durability.^[18] Digital signal processing (DSP) chips became integral, employing algorithms like Adaptive Differential Pulse Code Modulation (ADPCM) to compress audio files. ADPCM reduced data sizes by approximately 50%—from 64 kb/s in standard pulse code modulation to 32 kb/s—while preserving voice quality suitable for telephony, and also facilitated noise reduction for clearer playback. These chips enabled features like voice-guided menus, as seen in the Sony TAM-1000, improving user interaction without physical controls.^[30]^[18] Compared to analog systems, digital solid-state designs offered instant random access to individual messages, eliminating sequential rewinding and associated delays or hiss from tape. Integration with LCD displays provided visual feedback, such as message counts and timestamps, enhancing usability; Panasonic's 2000s models, like the KX-TG9391T, exemplified this with 40 minutes of digital storage and on-screen indicators. Hybrid systems emerged in the early 2000s, combining digital primary storage with tape backups for redundancy in devices like certain PhoneMate units, bridging the transition period.^[18]^[31]

Core functionality

Call detection and greeting

Call detection in answering machines relies on specialized ring detection circuits that monitor the telephone line for the incoming ring signal from the central office. These circuits typically employ voltage threshold mechanisms to identify the ring, which consists of an alternating current (AC) signal of about 75-90 volts RMS at 20 Hz superimposed on the standard 48-volt DC line voltage, distinguishing it from normal idle conditions.^[24] Once detected, the circuit counts the rings using a timer or counter, usually set by the user to activate after 2 to 4 rings, providing sufficient time for manual pickup while preventing premature answering.^[32] Later models incorporated caller ID integration to further refine detection, allowing selective answering based on incoming number data during the ring interval.^[33] Upon reaching the programmed ring count, the answering machine seizes the line via a relay or solid-state switch and plays the outgoing greeting message. This greeting is commonly a user-recorded audio clip, captured via a built-in microphone and stored on a dedicated continuous tape loop in analog systems or as a digital file in later solid-state versions, with typical durations of 10 to 30 seconds to convey essential information without delaying the caller excessively.^[34] Business-oriented units often include pre-set greeting options for professional use, selectable from factory-loaded messages in multiple languages to accommodate diverse callers.^[35] Answering machines operate in either announcement-only mode or full recording mode. In announcement-only mode, the greeting plays fully, after which the machine disconnects the call without prompting for or accepting incoming messages, useful for notifications like temporary closures or to deter unwanted contacts.^[36] Conversely, recording mode transitions after the greeting—often signaled by a tone—to invite callers to leave a message, enabling interactive call handling.^[37] Customization enhances user control over the greeting phase, including adjustable playback volume to match room acoustics or personal preference, and multi-language support in international models for broader accessibility.^[24] In 1980s and 1990s devices, particularly combo units, fax integration allowed detection of the calling fax tone (CNG)—a series of 1100 Hz beeps emitted by incoming fax machines—post-greeting, automatically switching the line to fax receive mode to prevent voice-mode interference.^[38]

Message recording and storage

The recording process in an answering machine begins after the outgoing greeting is played, typically signaled by a beep tone to indicate that the caller can leave a message. This beep serves to notify the caller that their message is being recorded, aligning with privacy practices and state consent laws for telephone recordings. The tone ensures callers are aware of the recording, distinguishing answering machines from surreptitious recording devices. Audio capture occurs via direct input from the telephone line, where the caller's voice is converted into an electrical signal and processed for storage. Modern systems incorporate automatic gain control (AGC) circuits to dynamically adjust the signal level, compensating for variations in caller volume or distance from the mouthpiece to maintain consistent recording quality. The captured audio is then stored in either uncompressed linear formats, such as pulse-code modulation (PCM) for digital devices, or as analog waveforms on magnetic media in older models, balancing fidelity with storage efficiency. Storage management varies between analog and digital implementations to handle message accumulation and prevent data loss. In analog systems, messages are recorded sequentially on a dedicated magnetic tape cassette, with the mechanism advancing the tape after each recording to the next available segment; upon reaching capacity, the system activates overwrite protection by ceasing new recordings and often emitting an alert tone or light to notify the user of a full inbox.^[39] Digital answering machines, by contrast, allocate discrete files in solid-state memory (e.g., flash or EEPROM), appending timestamps to each message for chronological organization and triggering capacity alerts when storage thresholds are approached, while overwrite protection ensures existing messages are preserved until manually deleted. Privacy features enhance user control over recorded content, including one-touch delete functions that allow immediate erasure of individual messages via a dedicated button, preventing unintended retention of sensitive information. Additionally, message screening capability enables live monitoring of incoming calls through a speaker, permitting the user to listen to the caller without answering and intervene if desired, thus supporting informed decision-making without full recording.

Retrieval and remote management

Local playback of recorded messages on answering machines was typically initiated by pressing a dedicated button on the device, enabling users to review messages sequentially through a built-in speaker for group listening or an earphone for private playback.^[40] Early models like the PhoneMate 400 from 1971 featured reel-to-reel tape mechanisms that supported basic navigation functions, such as rewinding to the beginning of a message or skipping to the next one, allowing efficient message review without replaying the entire tape.^[40] Visual indicators, including blinking lights and digital displays showing the number of stored messages, became standard in mid-1970s and later designs to signal new arrivals and facilitate quick status checks.^[4] Remote access capabilities emerged in the late 1960s and gained prominence in the 1970s, permitting users to retrieve messages by calling their home number from any touch-tone telephone and entering specific codes.^[41] This feature relied on dual-tone multi-frequency (DTMF) signaling, where tones generated by a portable pocket device or the calling phone's keypad activated functions like message playback; for instance, early implementations used sequences such as a series of tones to initiate retrieval. Security measures, including multi-digit access codes, were integrated to block unauthorized remote entry, a necessity highlighted in designs from manufacturers like Pioneer Electronic Corporation in their 1975 patented system. Management options during remote sessions expanded with technological advancements, enabling users to delete individual messages, save others for retention, or repeat playback as needed via additional DTMF commands. In late analog and early digital models from the 1980s onward, battery-powered handheld remote units—often compact tone generators—allowed cordless phone users to control these functions without relying on the home phone's keypad, providing portability for on-the-go management.^[41] Digital systems in the 1990s introduced enhanced features like selective message forwarding to other lines, though these built on tape-based storage formats for compatibility.^[1] Error handling in remote retrieval addressed common telephony issues, such as issuing a busy signal if the home line was occupied during the access attempt, prompting the user to redial later.^[42] Some advanced models incorporated call-back confirmation mechanisms, where the answering machine would automatically redial the remote user's number upon successful message processing or failure, ensuring reliable session completion even in noisy or interrupted connections.

Modern variations

Integrated and cordless phone systems

Integrated answering machines with corded telephones emerged prominently in the 1980s, following the deregulation of the U.S. telephone market after the 1984 AT&T breakup, which allowed consumers greater freedom to purchase and customize home phone systems. These combined units typically featured a single shared handset for both calling and message playback, along with unified keypads that integrated dialing functions with answering machine controls such as play, skip, and delete buttons. For instance, the 1980 AutoMatic Telephone was an early corded model that merged the answering device directly into the phone base, providing up to 20 minutes of recording time and simplifying setup by eliminating separate wiring.^[18] By the late 1980s, advancements in digital memory further refined these integrated systems, as seen in the 1989 PhoneMate Model 6950, a corded phone with built-in digital answering capabilities that stored outgoing messages on microchips, reducing mechanical failures and enabling more intuitive unified controls for message management. These designs prioritized usability in home environments, where the shared handset allowed seamless transitions between live calls and recorded messages without needing additional devices.^[18] Cordless variants of integrated answering machines gained popularity in the 1990s and 2000s, utilizing technologies like DECT (operating at 1.9 GHz) or 2.4 GHz wireless frequencies to enable handset mobility while maintaining the answering system in the base station. DECT models offered reliable ranges of up to 300 feet outdoors, providing coverage for larger homes, though indoor performance often limited to 100-160 feet due to walls and obstacles; in contrast, 2.4 GHz systems were more prone to interference from Wi-Fi routers and other 2.4 GHz devices, potentially causing static or dropped connections during calls.^[43]^[44]^[45] Unique to these integrated cordless systems were features enhancing multi-user households, such as caller ID displays on the base unit for quick screening of incoming calls, intercom functionality allowing communication between multiple handsets without using the phone line, and expandable setups supporting up to 12 handsets for multi-room coverage. Basic remote access via tone-based commands from another phone was also common, enabling users to retrieve messages away from home. Market examples from the 2000s include AT&T's CL82213, which provided 22 minutes of digital message storage and allowed review of recordings directly on cordless handsets through speakerphone or earpiece playback.^[46]

Voicemail services and apps

Voicemail services provided by telephone carriers emerged as a hosted alternative to physical answering machines in the late 20th century, allowing users to access messages remotely without on-site hardware. In the 1980s, carriers like Verizon's predecessors began offering landline and early cellular voicemail with dial-in access, enabling subscribers to retrieve messages by calling a dedicated number after entering a PIN.^[47] These services stored recordings on centralized servers, supporting both personal and business use, and quickly gained popularity as regulatory changes permitted phone companies to compete in enhanced services.^[48] Advancements in the 2000s introduced visual voicemail, enhancing accessibility through graphical interfaces and notifications. Starting in 2007, services like Apple's iPhone visual voicemail allowed users to view message lists and select playback without sequential listening, often integrated with SMS alerts for new arrivals.^[49] Carrier implementations, such as those from Verizon, bundled visual features with mobile plans, providing transcription and direct access via apps or phone interfaces.^[50] Mobile apps further evolved voicemail into internet-based platforms, exemplified by Google Voice, launched in 2009, which offers voicemail transcription, email forwarding of messages, and synchronization across devices.^[51] These apps provide expansive cloud storage, often in the gigabyte range, far exceeding traditional limits.^[52] Key advantages include elimination of hardware maintenance, built-in spam filtering to block unwanted calls, and seamless international access without geographic restrictions.^[53] Pricing is typically bundled free with carrier plans or available at low cost, with capacities supporting over 100 messages per user.^[50]^[54] By the 2010s, the ubiquity of smartphones accelerated the shift from physical answering machines to these hosted services, with carrier voicemail subscriptions dominating residential use due to convenience and integration with mobile ecosystems.^[55] In the U.S., smartphone penetration among adults reached 68% by 2015 and over 80% by 2020, driving preference for app-based voicemail that aligned with always-on connectivity.^[56]^[57]

Smart device integrations

Smart device integrations have transformed answering machines into seamless components of home ecosystems, leveraging voice assistants for enhanced call management. Since 2019, Amazon Echo devices have supported call screening—where Alexa asks callers to identify themselves—and message-taking via the Alexa app, allowing users to receive and respond to calls hands-free while integrating natural language processing (NLP) to generate real-time transcriptions of voicemails and conversations.^[58] Similarly, Google Nest Hubs, introduced in 2018, enable message-taking through Google Assistant, with NLP-driven transcriptions for incoming calls and announcements, often linked to Google Voice for broader telephony support.^[59] AI enhancements further elevate these integrations by incorporating automated responses and machine learning-based spam detection. For instance, services like Upfirst use AI to analyze call patterns, such as robotic voices or silences, to identify and block robocalls within seconds, while generating context-aware replies for legitimate callers.^[60] Apple's Siri, enhanced by Apple Intelligence in iOS 18 released in 2024, handles incoming calls with live transcription and summarization, notifying users of key details without requiring manual intervention.^[61] Integration with calendars, as seen in AI answering systems from providers like Ideta, allows for context-aware replies by cross-referencing call content with scheduled events, such as suggesting rescheduling based on availability.^[62] In home automation setups, answering functions connect to platforms like Apple's HomeKit and Amazon's Alexa for expanded utility, including doorbell-linked responses and multi-room playback. Ring doorbells, for example, integrate with Alexa-enabled Echo devices to announce visitors and display live video feeds, enabling users to "answer" the door remotely via voice commands and route interactions to the answering system.^[63] HomeKit-compatible devices similarly allow Siri to manage call alerts alongside smart locks or lights, creating unified workflows for message retrieval across rooms. As of 2025, trends emphasize privacy-focused AI with end-to-end encryption to protect voice data in smart ecosystems, alongside hybrid configurations that combine mobile apps with physical bases for reliable offline operation. Blockchain-enhanced encryption protocols ensure secure transmission of transcriptions and responses, addressing concerns over data exposure in interconnected devices.^[64] Hybrid setups, blending app-based AI with tangible hardware like Echo speakers, provide redundancy during connectivity issues while maintaining core answering reliability.^[65] In early 2025, Amazon launched Alexa+, a generative AI-enhanced version of Alexa, improving call management with more proactive screening, personalized responses, and deeper integrations across devices.^[66]

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A ring responsive circuit useful with a telephone answering device employs a single low inductance transformer both to couple audio to the telephone line ...
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26 Best Professional Voicemail Greetings To Use (With Tips) - Indeed
Using a friendly, personable tone typically encourages people to wait throughout the greeting. Length: Keep your voicemail greetings within 10 and 30 seconds.
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The Answering Machine - History of Every Day
Aug 7, 2023 · One notable example of an early answering machine is Willy Müller's "Hörzufernsprecher." Müller created the device in 1935.Before The Cellphone · Telegraphone · The ``electronic Secretary''Missing: commercialization | Show results with:commercialization
[38]
My answering system plays my greeting to callers but will not record ...
It is likely you have the Announce Only feature turned on. In Announce Only mode, callers hear your outgoing greeting but cannot leave a message.
[39]
[PDF] 5.8 GHz Cordless Telephone/Answering System E5655
In announce only mode, callers hear an announcement but cannot leave messages. This option can be used, for example, to notify callers that you will be away for ...
[40]
Connecting an external TAD (telephone answering device)
When you have an external TAD on the same telephone line as the machine, the TAD answers all calls and the machine 'listens' for fax calling (CNG) tones.
[41]
Telephone Answering Machine
Introduced in 1963, these machines cost several hundred dollars each and were aimed at business customers. The unit used a reel of plastic recording tape to ...
[42]
Telephone Answering Machine
In 1971, PhoneMate introduced the Model 400 answering machine that held twenty messages on a reel-to-reel tape. An earphone allowed the user to listen ...Missing: time stamp
[43]
Telephone Answering Machine | Smithsonian Institution
**Summary of Telephone Answering Machine (NMAH 1299450)**
[44]
Answering machine issues - Asterisk Community
Nov 18, 2006 · When an incoming caller (after leaving a message) hangs up, the answering machine seems to keep the line alive with a very loud busy signal.Missing: error access
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https://headsetadvisor.com/blogs/blog/what-is-dect-6-0
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Avoid Cordless Phone Interference From Your Wi-Fi - Lifewire
Oct 15, 2021 · Positioning a Wi-Fi router too close to a DECT 6.0 base station often results in degraded voice quality on the cordless phone.<|separator|>
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https://www.voxsci.com/cms/showPage?PAGE=voicemailHistory.tml
[48]
Answering Systems - AT&T® Telephone Store
Free delivery 14-day returnsOur digital answering systems record outgoing announcements and incoming messages on a microchip, which ensures reliable performance, instant access to messages ...
[49]
VTech CS6719-2 2-Handset Cordless Phone with Caller ID/Call ...
30-day returnsThe VTech CS6719-2 Cordless Phone with Caller ID features an expandable system ... Handset to Handset Intercom. Newer Version Available. VTech Cordless Phone ...
[50]
VTech CL82213 Answering Machine & Caller ID with HD Audio, 2 ...
Rating 4.4 (31) · Free 90-day returnsAT&T 1740 60 Min Record Time Digital Answering System, White. Best seller. AT&T 1740 60 Min Record Time Digital Answering System, White. Add. Now $17.45.
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The History of Voicemail - VoxSci
Once the phone companies were allowed to offer voicemail services it really caught on, particularly for mobile (cell phone) subscribers. The Future of Voicemail.
[52]
Voice Mail vs. Answering Machine - The New York Times Web Archive
Apr 30, 1998 · early 70 percent of American households own telephone answering machines, according to a trade group study, but that does not mean they are easy ...<|control11|><|separator|>
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Apple Reinvents the Phone with iPhone
Jan 9, 2007 · iPhone's pioneering Visual Voicemail, an industry first, lets users look at a listing of their voicemails, decide which messages to listen to, ...
[54]
Voicemail Comparison Chart - Features & Pricing - Verizon
Use this chart to compare features of different voicemail options available for your mobile phone. See what's free and what premium add-on are offered.
[55]
How Google Voice Works - Electronics | HowStuffWorks
Google Voice is a Web-based communication platform for linking multiple phones to a single phone number.
[56]
Unlimited Voicemail Storage for FREE - Tossable Digits
We have virtually Unlimited Voicemail Message capacity, so you never have to delete Voicemails.
[57]
How Google Voice Works: Key features and Drawbacks - Nuacom
Free voicemail with transcription services. Call forwarding to multiple devices. Spam call filtering and number blocking. Cross-device synchronization. Basic ...
[58]
VC Unlimited Box All-in-One System - Voice Connect
Voicemail service with 100 message storage capacity. Recorded greeting of up to 10 minutes. Unlimited, time-related greetings give you the ability to have ...
[59]
https://support.google.com/googlenest/answer/7029002?hl=en
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Alexa Calling and Messaging - Amazon Customer Service
Learn more about communication features on Alexa. Add Alexa Contacts Use the Alexa app to add a contact to your Contacts list.
[61]
Get calendar and event information - Google Nest Help
Add calendar events or get your schedule for the day with your Google Assistant or Gemini for Home voice assistant on your smart speaker or display.<|separator|>
[62]
How AI Answering Services Screen Spam and Robocalls - Upfirst
Oct 1, 2025 · Automated detection: The AI listens for signs of robocalls such as recorded messages, odd silences, or robotic voices. Caller verification: It ...
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iOS 18 is available today, making iPhone more personal and ... - Apple
Sep 16, 2024 · Updates coming to AirPods will transform the way users take calls, respond to Siri, and immerse themselves in their favorite games with ...
[64]
AI Answering Machine: Smart Call Management for Productivity - Ideta
May 7, 2025 · For non-spam calls, the AI engages in natural, context-aware conversations, asking for the caller's intent and gathering relevant details.
[65]
Control Your Ring Doorbell or Security Camera with Alexa
### Summary: How Ring Doorbell Integrates with Alexa for Answering or Announcements
[66]
AI Privacy Trends in Smart Devices 2025 - Dialzara
May 26, 2025 · In 2025, SMBs must prioritize AI privacy to safeguard customer data, navigate complex regulations, and build trust amid rising cyber threats.Missing: end- end
[67]
Answering machine application in 2025 - Callin.io
This integrated approach employs AI systems for routine inquiries while seamlessly transferring complex situations to live operators.