VoIP vs. Landline: Which One is More Reliable?

VoIP vs Landline Comparison

Basically, the landline telephone system, which is wired, is in use for many decades but we still talk about its reliability. Whereas, the VoIP  (Voice over Internet Protocol or Voice over IP) technology is relatively new and is not dependent on the bulk of wires. Any commercial audio video solutions provider can provide VoIP services as well.

In this article, we will check that which technology and which network is more reliable for your business. The reliability of any telephone system depends on different factors. Some of these factors are as follow:

  1. Uptime
  2. Quality
  3. Redundancy
  4. Security

So, based on these factors, let’s check which system is more reliable for your business? VoIP or landline?


The uptime of the communication system is very important for the success of any business. If your communication system is down you won’t be able to communicate with the clients and with the business partners that will eventually leave a negative impact on the business growth.

In the industry, uptime is measured in percentage and it is the time for which the operator is functioning and online. The “five nines” is the gold standard for uptime and it is considered to be the best.

If any operator claims to have a 99.999% uptime then it means that there will be a downtime of only 6 minutes for that network during the whole year. Voice over IP provider 99.999% uptime which is ideal for any business.

So, if we compare the landline and VoIP services, we can see that VoIP is more reliable as it is a cloud-based system that works on internet protocols. You don’t need wiring on your location and physical handsets. You can use softphones to make the calls and if the internet is down, you can redirect all your VoIP calls on your cellphone.

Whereas, the landline system is based on physical wires and infrastructure. Bad weather, power failure, and wire cuts can make the whole system down. So, because of these factors sometimes your landline can be down for hours or even for days.

Call Quality

During a call, the clarity of voice is very important. The background noise or any kind of distraction is not liked by anyone and it can make the overall conversation experience a nightmare.

VoIP provides advanced technology and codecs that can transfer the voice in HD quality. A crystal clear voice can be heard using VoIP phones. Once you are used to VoIP calls, you won’t like to go back to the landlines ever. Even during the conference calls, the advanced apps and technology of VoIP can remove any background noise and interference so that you can enjoy your calls.

Whereas in the landline, small damage or small change in weather can add so much noise in the call that sometimes you can’t understand what the other person talking about.

Call Security

For any business, security is very important especially when the official meetings and confidential conversation is made through the phone calls. In a landline system, security can be easily compromised if someone has access to the wires or the Private Branch Exchange (PBX).

While the VoIP system uses a cloud-based PBX which is secure and no unauthorized calls can be made. No one can detect your call and conversation as well when you are using VoIP.


VoIP is great in providing a backup for the calls. In case you are not on your softphone system, the call forwarding system can still connect you with the customers. The VoIP calls will be online even if there is an interruption in the network like jitter.

Landline is a single point of failure system that means it is dependent on a single point. If that point fails, the entire system will be down and there will be no backup as well.