VoIP and SIP: What is the difference and what is the best?


“Someone once thought that the Internet was another world, but now people realize that it is a tool we use in this world.”-Tim Berners Lee.

Understand the words of Tim Berners Lee and figure out how far we have gone in the Internet race to become more comfortable. Ordinary tasks that can be accomplished with just a few clicks on our smartphones were once dreams of old times.

Making calls on the Internet via WhatsApp, Skype or Hangouts seems to be a very simple and convenient task. However, ten years back in time, most of these things are luxury items, requiring expensive Internet plans and complete Internet lines and connections.

Nowadays, one of the things taught a lot to students is VoIP or Internet Voice Protocol. For starters, this is the same protocol that can help you make calls over the Internet. Therefore, the key is that there is no VoIP and no calls over the Internet.

The VoIP system can work because it sends voice signals in the form of voice packets, instead of sending voice signals in the form of continuous signals like traditional telephone lines. However, VoIP introduces another more powerful protocol, but most of them are underestimated, namely SIP or Session Initiation Protocol.

SIP work revolves around the initiation, maintenance and termination of communication sessions in VoIP. SIP VoIP can not only handle voice issues, but also manage the transmission of video and messaging applications.

Now, a problem may arise, that is, if SIP includes VoIP functionality, then this protocol may be a protocol that better meets your business needs. But lead the horse. This is not always the case. Not all SIP providers cover VoIP, and not all VoIP providers embed the SIP protocol for VoIP.

In some cases (mainly commercial VoIP), the VoIP protocol plays a more important role, and SIP is included in its scope. This means that VoIP automatically has the ability to increase its control range, from just voice calls to arranging the transmission of video, text and other multimedia.

7 obvious differences between VoIP and SIP

In order to determine which one you should choose, this is the difference between VoIP and SIP.

Serial number VoIP phone sip
1. Voice over IP is mainly used to make calls over the Internet. It is an application layer protocol used to manage the start, maintenance and termination of multimedia transmission on the Internet.
2. It is a set of protocols that can work together to make calls over the Internet possible. This is a centralized agreement with a relatively limited scope of operations.
3. The voice message in the data packet can only be sent at the set time interval. Send all types of multimedia, such as video, text, image and average data stream.
4. For VoIP phones, you must connect to the computer via the Internet. For SIP phones, there is no need to connect to a computer, and it is more like a traditional phone, which can work even without the Internet.
5. Data is collected, organized and distributed through a central network. Decentralized data sharing and storage. Each host has its processing system, which can process more data.
six It needs to be manually configured according to client requirements each time. It cannot interact with other protocols without modification. It can interact with other protocols and adapt its signaling protocol to the client. Intelligent and adaptive.
7. In terms of scalability, the scope is relatively limited. Provides great scalability for business functions.

Now that you know the difference between the two, it’s time to look at the benefits and pitfalls of the two. Just like a coin has two aspects, whether it is SIP or VoIP phone, each protocol has its advantages and disadvantages.

voip vs sip

VoIP professionals

  • The initial setup and installation costs are low.
  • The monthly billing cycle and cost of ownership are still fairly low and cost-effective.
  • Portable and ready to use. No physical installation is required.
  • No long-term investment is required. Can provide short-term service contracts.
  • VoIP provides the basic functions of caller ID, call waiting and call forwarding.

VoIP disadvantages

  • Need bandwidth to process large amounts of data
  • Need better connections and bandwidth to ensure proper call service quality
  • It is not possible to integrate basic VoIP with other mobile applications.
  • Cannot integrate with Salesforce, DropBox or MS-Office.

SIP expert

  • Work independently of the session or the media being used
  • Highly flexible, adaptive and intelligent, can understand customer needs
  • Open source agreement leaves room for third-party application integration
  • Because error messages and other messages are simple and clear text, troubleshooting is easier.
  • Each host has its own protocol set, so it can accommodate multiple users without additional bandwidth
  • There is room to accept various functions of various users. Audio-only members can also interact with video and audio members during a call.

SIP disadvantages

  • A router is always needed. This is to convert all data (such as text, images, video or any other multimedia) into data packets that can be transmitted.
  • SIP is a newer protocol, and fewer resources or experts use it.
  • Due to the lack of experts, the initial cost is high.
  • The personnel who need on-site training handle the agreement separately.
  • It is not allowed to use SIP or SCCP phones on the same network. For optimal use, pitch conversion is required.
  • Functions and features are still under development. Most of the created features are proprietary and enterprise-specific.

Like we said, everyone has their strengths and weaknesses. However, after careful observation and taking into account the needs of the hour, SIP has become a better choice. The reasons are as follows:

  1. Allow expansion, especially in business applications
  2. Intelligent and adaptive, while adapting to real life conditions
  3. Open source protocol, which means it can be automatically written or incorporated into custom applications
  4. Although the initial cost is high, the price adds more features.
  5. Allows the transmission of various multimedia formats, such as video, audio, text and images-all these formats have been translated and sent to the client in the form of data packets
  6. SIP phones can also be called back just like ordinary phones that do not require an Internet connection.
  7. Due to the decentralized nature of data storage and processing, it will not take up too much system bandwidth.

With these benefits, it is easy to explain that the Session Initiation Protocol or SIP is the protocol to be used. Especially if you are a working professional, and now you have a clear idea of ​​which one is the best person, then before choosing a person, make sure you take a dynamic and in-depth approach.

Have we missed any major differences between SIP and VoIP? You share your knowledge with us or correct us in the comments below.

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