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Are VoIP and SIP Similar?- Difference between VoIP and SIP

The two significant terms of the telecom industry, VoIP and SIP, are something, not a layperson will understand and might get confused about the two being similar.


Since we are the renowned expert in the telecom industry, we will let you go through what exactly VoIP and SIP are and what’s the actual difference in the simplest way.

VoIP stands for Voice Over Internet Protocol, which means the internet technology is used to support voice calls. In other words, it is a broad term that supports and covers voice calls over the internet.

And to make these calls, some protocols or rules are being followed; these are known as SIP.

The primary signaling protocol used by the VoIP phone systems when establishing calls is the Session Initiation Protocol for a sip for short and is the protocol used to connect telephone devices to their media server. When an application uses SIP, it will send a text with different parameters that will let the other peer know how the communication will happen.


What is the main distinction between VoIP and SIP?

  • VoIP can only transmit voice over the internet; in contrast, SIP trunks can transmit multimedia data packets.
  • This can be in the form of voice, text, or video. They work with many media as well.
  • VoIP calls only take place online or over a secure internal network.
  • However, a SIP trunk can carry data packets over any network, including the internet, a VPN, and the ISDN (physical phone network).


One of the key effects of this distinction is that SIP equipment may operate independently, in contrast to VoIP equipment, which depends on a computer to run its software and connections.

SIP trunking is a network component that you use to make and receive calls.

The protocol is kept on the telecom provider’s device and in the phone exchange you will have in your building.

If you handle critical data, you can even have a direct link to your network provider for an additional layer of protection.

On the contrary, VoIP calls are all managed from a single location by a different supplier who handles the traffic.

That is less secure and means that you won’t be able to make calls if their system goes down.


VoIP vs. SIP

Let’s dissect SIP and VoIP into their most straightforward concepts to comprehend their differences better.

VoIP Meaning

This general phrase refers to any phone call done through the internet instead of a traditional phone line.

As a result, VoIP relies on data communication rather than the traditional PSTN (public switched telephone network).

As we mentioned above, VoIP meaning “Internet Protocol,” which is a general word used to describe data being exchanged over the internet.

The term VoIP is more frequently used to refer to this when it refers to voice data.

VoIP is a term used to describe a method of combining all of these call sessions from a single user.

It’s simply a word used in the business to make it simpler to describe how many call groups you would require at any given time.

These benefits and drawbacks of VoIP can alter based on the type of service because of its features and general attributes.

However, bear the following in mind when thinking about VoIP services:


Benefits of typical VoIP professionals include:


  • Call waiting, call forwarding, and caller ID are all standard features of VoIP service plans.
  • VoIP systems are typically portable and don’t need to be installed on-site.
  • Typically, investment expenses are modest.
  • Most VoIP phone service providers don’t demand lengthy service agreements.



Having said that, VoIP can have the following drawbacks:

  • Due to the fact that this is a voice-only service, multimedia communications are not supported.
  • Unable to be combined with Pindrop and Genesys, among other programs.
  • Bandwidth is necessary for both service availability and call quality of service (QoS).

SIP Trunking: Definition


The “Session Initiation Protocol,” sometimes known as SIP, is a set of guidelines used in multimedia communications to start and stop data transport between various users.

The easiest way to compare SIP with VoIP is to consider how VoIP can be enhanced by utilizing SIP trunking simultaneously.

The advantages and disadvantages of combining the two are as follows:



Your company may have a lot more freedom after implementing SIP.

For instance, SIP trunking facilitates the following for your business:

You may increase scalability and send multimedia messages by including video and other types of messaging.

  • You can have more control over pricing by allowing for additional lines of service or features as needed.
  • PRI line integration should be improved.
  • Give employees a backup plan for their devices if there is a data connectivity problem.

Improved compatibility with cloud-based programs like unified communications as a service (UCaaS).

Which is more advantageous for your business, SIP trunking or VoIP?


How can you choose between VoIP and SIP trunking for your company with all of this information in mind?

Be aware that the two are not directly comparable as might first appear.

Second, think about how crucial it is to have services other than voice-only ones.

SIP, which allows different communication channels and flexibility, may be helpful if you desire further capabilities.

Have more inquiries still? To learn more, speak with the telecom specialist.

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