Landline vs VOIP: Difference and Comparison

If anybody ever communicated, it was with the help of letters. Fire and smoke signals were some methods used to communicate with others.

Communication became a little easier with the invention of landlines. People went to the nearest Subscriber trunk dialling (STD) and international subscriber dialling (ISD) to make a call to pass on important information to their friends and family.

Key Takeaways

  1. Landlines rely on physical copper wires or fiber-optic cables to transmit voice signals, while VoIP uses internet connections.
  2. VoIP offers greater flexibility, with features like call forwarding, voicemail-to-email, and the ability to use multiple devices.
  3. Landlines generally provide better voice quality and reliability, but VoIP is often more cost-effective.

Landline vs VOIP

A landline is a traditional telephone service that transmits voice signals over physical wires and circuits. VOIP (Voice over Internet Protocol) is a digital technology that uses the Internet to transmit voice signals.

Landline vs VOIP

A fixed line connected to a landline comes from the local telephone exchange. A landline consists essentially of a rectangular or spherical dialer with a single receiver that converts sound energy into electronic energy.


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VOIP stands for voice-over Internet protocol, which allows users to make phone calls over the Internet. We may use this technology to make free international calls by only paying for an internet connection.

Comparison Table

Parameters of ComparisonLandlineVOIP
Invented InIt came into the market in the year 1876.It was invented in 1995.
Invented byAlexander Graham Bell was the one who found it.Marian Croak was the one who invented it.
SignalsIt works on analog signals.It works on digital signals.
Medium UsedThe fixed-line provided by the telephone exchange can be used to make calls.Calls are made over the internet.
Hardware RequiredIt requires a dialer with a receiver consisting of the diaphragm.With headphones, use a mobile phone or similar device.

What is Landline?

Landlines are a type of telecommunication service that allows people to communicate with one another to share vital information. A dialer (which aids in number dialling) and a receiver (which assists in speaking to the person who is on another side) make up a landline.

The landline receiver has a diaphragm and a transmitter. Landlines were only accessible at STD (local calls) and ISD (international calls) stores when this technology was new.

Hearing other people’s voices is aided by the diaphragm. On the other hand, the transmitter converts sound waves into electrical waves. The region decided the cost of calling loved ones on a landline and the amount of time spent conversing.

If people made national calls, the charges were less as compared to the calls people made overseas. The receivers were fixed on older landlines. With time, however, codeless receivers became available.

As a result, because it is based on optical fibre technology (signal transfer via vibrations and pulses), no internet is necessary to utilize a landline at home.


What is VOIP?

It signifies the usage of Internet services to communicate with loved ones and colleagues. Marian Croak, an African American lady, is the one who brought up this internet-based technology.

People connected better with others worldwide as the network became available. After then, in 1995, the invention of VOIP occurred.

While calling, this technology converts analog signals to digital signals. To use it, you’ll need any one of the gadgets (a smartphone, a laptop, a computer, or a tablet) with excellent earphones.

Many applications, such as Skype and WeChat, were created employing VOIP technology to allow users to make international calls without paying a penny for the call.

Many famous applications, such as WhatsApp, Facebook, and others, were later built using the voice-over-internet protocol, which allows for voice and video calling to people.


Main Differences Between Landline and VOIP

  1. Calls made over the phone are more expensive than calls made using voice-over-internet protocol (VOIP) technology.
  2. A device that consists of a dialer and a receiver is required to use landline service. However, it would be best to have a smartphone or similar device with an internet pack to use VOIP.
Difference Between Landline and VOIP

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