Virtual PBX Knowledge 14/06/2026

The differences between the open-source FreeSWITCH PBX and the OMICall PBX system.

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Understanding the FreeSWITCH open-source PBX system and the OMICall PBX system

FreeSWITCH is a free, open-source application that supports voice, video, WebRTC, real-time communication, and VoIP. FreeSWITCH is used to build PBX systems, IVR services, video conferencing, call routing systems. It acts as a gateway connecting PSTN, SIP, WebRTC, and other protocols.

The new OMICall PBX solution, based on cloud operation, is often used in businesses for smart customer service virtual PBXs. It helps businesses save on call costs, optimize operations, increase call answer rates, is convenient to use, and easily integrates with other systems.

Advantages and disadvantages of the OMICall PBX system versus FreeSWITCH PBX software.

	FreeSWITCH call center software	OMICall call center system
Advantage	Scalability: allows for easy addition of new features. Problems with a feature will not crash the entire system. FreeSWITCH can run on multiple platforms, including Linux, Mac OS X, BSD, Solaris, and even Windows. Hosted in the cloud from FreeSWITCH servers dedicated to automated cloud hosting services.	Fully cloud-based operation, integrated CRM customer management features. Low cost: No charges for long-distance or international calls. Easily scalable without hardware upgrades. Easy zone forwarding. No limitations on the number of telephones due to the use of IP phones (SIP). Easy system monitoring and management via web administration. Saves call center personnel: Thanks to automated mechanisms: Automatic answering (IVR), automatic call distribution (ACD), voicemail…
Disadvantages	The hardware depends on how you will use FreeSWITCH. FreeSWITCH can run on small hardware like a Raspberry Pi and can scale up to powerful data center servers with dozens of CPU cores. Applications can be written in C, C++, Python, Perl, Lua, JavaScript, Java, and Microsoft .NET via Microsoft’s CLR or via Mono.	Because the system is based on a cloud-based platform using an internet connection, the transmission may occasionally experience leaks or echoes. Virtual call centers used by some companies are also vulnerable to hackers stealing security information. Assets are not located at the company headquarters and cannot be physically seen, touched, or measured.

Comparison between the open-source FreeSWITCH PBX system and the OMICall PBX system.

FreeSWITCH call center software	OMICall call center system
FreeSWITCH provides an application programming interface that exposes the primitives for call control and IVR functionality.	Extension splitting feature, call forwarding to employee’s personal phone if all extensions are offline. Easily make and receive calls using a regular personal phone.
Not yet	Connect with social media. Connect with Facebook Messenger Fanpage for customer service.
Provides native services directly to browsers, such as video conferencing, IVR, and call centers, without using any gateways.	Managers and sales staff should only see the customers they are currently serving. When a customer calls the hotline, they should transfer the call to the sales representative who is currently handling that customer.
Not yet	Easy customer management: All outgoing and incoming calls from all staff are recorded and reported, helping to improve service quality.
Not yet	Stable API and CRM. Customer storage, call storage.

The OMICall virtual call center system integrates and supports many new features for businesses.

After research, the FreeSWITCH call center system has many disadvantages that are quite detrimental to businesses in operating their call center. Therefore, the OMICall call center system will help you overcome customer service problems and operate your call center more easily.

OMICall is an intelligent virtual call center service that operates entirely on a cloud computing platform, maintaining the strongest connection. The system helps businesses save on call costs, optimize operations, increase call answering rates, is convenient to use, and easily integrates with other systems.

ƯAdvantages of Freewitch Virtual Call Center and Open Source Call Center:

“Best support” and largest bandwidth in the field of intelligent virtual call centers, with 2-factor authentication to prevent customer information theft;
Real-time reporting feature: Every call is stored and reported in real time, allowing for tighter control, easy monthly expense reporting, reconciliation, or invoicing;
Businesses can easily manage Sales and TeleSales intelligently and efficiently, improving work quality;
Integrated customer funnel filtering and call scripting, businesses can adjust the customer funnel order to prioritize and easily provide customer care and offers according to the funnel script;
Excellent support on Android and iOS operating systems;
Only requires 3G/4G or WiFi to use, and can tag/note on PC;
Call center hold music feature: Instead of the “Beep Beep Beep” sound when calling the call center, we support the Branded Call Center feature;
…

OMICall is an intelligent virtual call center service for customer care, operating entirely on a cloud computing platform.

Experience the intelligent OMICall virtual call center service now at:

VIHAT TECHNOLOGY Co., Ltd

Headquarters: ViHAT Building – 06 Street No. 16 (Him Lam Residential Area) – Hiep Binh Chanh Ward – Thu Duc District – Ho Chi Minh City

Hanoi Branch: Floor 15, LADECO Building, 266 Doi Can, Ba Dinh, Hanoi

Cambodia Branch: Thida Rath #154 St. 33MC, Sangkat Steung Meanchey, Khan Mean Chey, Phnom Penh