A telephone is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be heard directly. A telephone converts sound, typically and most efficiently the human voice, into electronic signals that are transmitted via cables and other communication channels to another telephone which reproduces the sound to the receiving user. The term is derived from Greek: τῆλε (tēle, far) and φωνή (phōnē, voice), together meaning distant voice. A common short form of the term is phone, which came into use almost immediately after the first patent was issued.In 1876, Alexander Graham Bell was the first to be granted a United States patent for a device that produced clearly intelligible replication of the human voice at a second device. This instrument was further developed by many others, and became rapidly indispensable in business, government, and in households.
The essential elements of a telephone are a microphone (transmitter) to speak into and an earphone (receiver) which reproduces the voice in a distant location. In addition, most telephones contain a ringer to announce an incoming telephone call, and a dial or keypad to enter a telephone number when initiating a call to another telephone. The receiver and transmitter are usually built into a handset which is held up to the ear and mouth during conversation. The dial may be located either on the handset or on a base unit to which the handset is connected. The transmitter converts the sound waves to electrical signals which are sent through a telephone network to the receiving telephone, which converts the signals into audible sound in the receiver or sometimes a loudspeaker. Telephones are duplex devices, meaning they permit transmission in both directions simultaneously.
The first telephones were directly connected to each other from one customer's office or residence to another customer's location. Being impractical beyond just a few customers, these systems were quickly replaced by manually operated centrally located switchboards. These exchanges were soon connected together, eventually forming an automated, worldwide public switched telephone network. For greater mobility, various radio systems were developed for transmission between mobile stations on ships and automobiles in the mid-20th century. Hand-held mobile phones were introduced for personal service starting in 1973. In later decades, their analog cellular system evolved into digital networks with greater capability and lower cost.
Convergence in communication services has provided a broad spectrum of capabilities in cell phones, including mobile computing, giving rise to the smartphone.
Long-time iOS user here. I have android phones as backup pero mostly realme, xiaomi or poco. Sadly, biktima ako ng random reboot ng Poco kaya napabili ako nito. Sabi ko backup phone lang pero ginawa ko na siyang main device kasi ang smooth lang ng OS. Walang bloatwares. Almost stock android with...
promise ampanget pag low quality blur yung mga animations 🤧
phone specs:
Oppo Reno 2F
8GB RAM
128 ROM
Kaya naman sa ibang games High graphics pero dito sa warzone tagilid nako huhu 🤧😫 kayo din ba?
iPhone 11
128gbanysim will do
updated to ios 17
Face ID working
Truetone not working
malinaw both camera
goods all buttons77% batthealth
orig makunat
original all parts
8K
Paano kaya maa access yung sirang phone, may ireretrieve lang na file. Halos black screen na sya, hindi na makita pero may white/blue lights sya sa giled umiilaw kapag nacharge.
Guys wanna ask if this is possible.. I owned a modded switch and I want to update it for a new CFW (Custom FirmWare) but my problem is it requires a PC/Laptop to be able to do it.
so to make it short, can I modded my phone to make it a PC (with a real window OS) or is there an app to extract...
If you can't change the default SIM, here's the workaround.
1. Set the SIM card (which you want to set as default for SMS messages) as default for Calls and Internet,
2. Temporarily disable the other SIM card,
3. Send a message to anyone,
4. Re-enable your other SIM card,
5. Re-adjust the...
Hi phc suggest naman kayo ng sulit na phone ngayon worth 15k below yung maganda camera at responsive. Nakakaumay na kase tong poco f3 ko puro na ghost touch. Baka may mairecommend kayong s†éál phone. salamat 😄
Nag ask ako before kung redmi 12 or itel 55g i bought redmi 12 nalang po sa marketplace i got it for 3800 lang super sulit. Pwede po mag recos kayo ulit ng phone ulit for me naman ang hanap ko kase kahit matagal na sumasabay padin sa mga phone now, ang nakita ko poco f3 for 6500 256 na kaso may...
Good day, planning to buy kase ng phone for my cousin I'm choosing itel p55 5G and redmi 12 since naka promo ang dalawang phone na ito both shopee and lazada, so guys wdyt is the best ?
PLEASE HELP not sure if this is the right forum but everytime I try na mag contact sa phone number ng manila parating sabi " your number cannot be complete as dialed " di ko alam if mali yung pagkakatype ko sa phone or sira yung phone or ano please help me how to fix po nito.. PLDT PHONE PO ITO...
🔰 Avast Antivirus & Security (ρrémíùm)
Mod Info:
ρrémíùm Features Unlocked
AOSP Compatible / No Google
Promo Apps Removed
CPUs arch: Universal
Full Multi Languages
All debug Info Removed
Download link:
Hidden content
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How To Run **** On Android
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patulong nman, nagavail ako ng netflix shared sa fb. ok nman sya pag sa phone ang prob ko ayaw sa smart tv nmen hnd kasi updated un netflix dun at hnd naaupdate.