What Should I Choose A SIP Trunking Or A Hosted PBX?

  • August 26, 2022

Generally, a SIP trunk and hosted PBX are quite identical to each other since both come from similar backgrounds. So, are you wondering what to choose whether SIP trunks or cloud based PBX? Well, you have landed on the right page since this blog will give you the best answer to your question. 

Sip trunking and cloud hosted PBX can be compared to each other based on certain grounds. Moreover, they are both business VoIP solutions with similar functions. However, they differ in key logistics, technical and financial aspects.

To grab more details about them and make an informed decision, do read the blog below.

Deeper Explanation of Sip Trunk and Cloud PBX

A PBX is generally a business phone system, the full form of which is Private Branch Exchange. It connects phones and voice applications like auto attendant, voicemail box, and many more things. At present, cloud hosted PBX is telephony software that runs on a server in your organization. Furthermore, most IP PBX system uses the SIP protocol. It is a communication protocol for signaling and controlling multimedia communication sessions. 

However, to make your decision, you must look at VoIP from all perspectives, which are finances, logistics, business expansion, and implementation. So, let’s dive deep into this blog. 

Key Differences Between IP PBX System and Sip Trunk

By knowing the key differences between the virtual office phone system and SIP trunking, you can easily make an informed decision right away. 

  1. The Initial Costs Incurred: For cloud based PBX, you will need proper broadband service. The thing you won’t need is PBX servers. The VoIP service provider will be the one looking after the service. With this setup, your phone system will be on the cloud. Since you don’t need to purchase any hardware, you get to save the majority of the initial costs. However, in the case of SIP trunks, the costs are entirely different. Moreover, if you have on-site PBX then this technology is actually useful.

  2. The Monthly Subscription: The virtual office phone system offers numerous packages and charges according to the number of users and features. Some cloud telephony providers may also charge you on a minute basis, too. Talking about Session Initiation Protocol, it charges on a per channel basis. This means you can directly make one phone call on each channel simultaneously. However, most SIP trunking providers may offer two plans together. One containing the monthly fee with an additional metered rate based on calling minutes. Another one comes with an unmetered monthly plan that would include unlimited calling.However, it is important to depend on the right service provider that will give you everything including toll free number, local phone number, and international toll free number at cheap rates.

  3. Overall Expertise and Technical Knowledge: With an IP PBX system, you will only be responsible for maintaining internal changes. This will include adding users or changing features. The hosted PBX solutions will server and software maintenance. They can also handle technical challenges easily that come up.Such things include outages, disruptions, system-wide upgrades and many more. For SIP trunks, quality maintenance is necessary and technical knowledge is needed. So, depending on the best SIP trunking providers is the need of the hour. 


With this, we can come to the conclusion of this blog. So, these are the major differences between a SIP trunk and cloud based PBX. Hence, be sure to make an informed decision. Both are best in their own ways and are necessary for your business. Therefore, are you ready to take your business to the cloud? 

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