# Asterisk Reviews **Vendor:** Sangoma **Category:** [VoIP Providers](https://www.g2.com/categories/voip-providers) **Average Rating:** 4.6/5.0 **Total Reviews:** 59 ## About Asterisk Build Voice, Video and Text Applications Easily With Asterisk, The World's Most Widely Adopted Open Source Communications Software Development Framework. Asterisk is an open source framework for developing state-of-the-art communications applications. Asterisk includes hundreds of pre-built components that handle the complex, low-level details of voice, video, and text communications. Developers use Asterisk to create custom communications solutions and to build innovative communications products. Discover how Asterisk can power your next-generation communications deployment. ## Asterisk Pros & Cons **What users like:** - Users value the **customization and flexibility** of Asterisk, enhancing telephony operations and improving efficiency. (1 reviews) - Users find the **easy integration** of Asterisk to be a crucial advantage for building their PBX systems. (1 reviews) - Users value the **easy integrations** of Asterisk, establishing a solid foundation for their PBX systems. (1 reviews) - Users value the **easy integration** of Asterisk, seeing it as a solid foundation for all PBX systems. (1 reviews) - Users benefit from the **time efficiency** of Asterisk, streamlining processes and optimizing telephony operations effectively. (1 reviews) - Users value the **extensive customization** of Asterisk, enhancing operational efficiency and optimizing call management. (1 reviews) **What users dislike:** - Users find Asterisk's setup and configuration **complex and challenging** , requiring significant technical knowledge and manual adjustments. (2 reviews) - Users find Asterisk's **customer service lacking** , citing complexity and a need for technical knowledge to manage it. (1 reviews) - Users find the **difficult interface** of Asterisk complex and requiring significant technical knowledge for administration. (1 reviews) - Users find Asterisk's **difficult settings management** challenging, requiring technical knowledge and offering limited support. (1 reviews) - Users are frustrated with the **login issues** that require multiple logins for Asterisk and CRM access. (1 reviews) - Users report **poor customer support** , complicating administration and necessitating advanced technical knowledge for Asterisk. (1 reviews) - Technical Assistance (1 reviews) ## Asterisk Reviews ### 1. Rugged Dialer That Gels Seamlessly with Any CRM **Rating:** 4.5/5.0 stars **Reviewed by:** Sathyanarayanan A. | CTO, Mid-Market (51-1000 emp.) **Reviewed Date:** February 17, 2026 **What do you like best about Asterisk?** A rugged Dialer tool which gels with any CRM **What do you dislike about Asterisk?** Agents will have to login into Asterisk dialer over and above logging into CRM. **What problems is Asterisk solving and how is that benefiting you?** Helped in making calls smoothly ### 2. Pilar of Telephony **Rating:** 5.0/5.0 stars **Reviewed by:** Jose S. | Sysadmin Mid, Information Technology and Services, Mid-Market (51-1000 emp.) **Reviewed Date:** October 02, 2025 **What do you like best about Asterisk?** - Easy To integrate - Foundation for every PBX **What do you dislike about Asterisk?** - Little complex - Technical Knowledge needed to admin - Limited Support **What problems is Asterisk solving and how is that benefiting you?** - Office Telephony - IVR - CallCenter Solution - Branch Communication ### 3. Asterisk; barrier-free telephony for total communications control **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Computer Networking | Small-Business (50 or fewer emp.) **Reviewed Date:** February 21, 2025 **What do you like best about Asterisk?** The level of customization of Asterisk is unmatched allowing us to adapt it to the specific needs of our telephony infrastructure; thanks to AGI scripts we extend its functionalities, automating processes and improving operational efficiency. It's remarkable its ability to manage multiple SIP Trunks and operate with more than one provider at a time which gives us stability to optimize costs by choosing the best route for each call. **What do you dislike about Asterisk?** Asterisk is a very flexible tool and offers absolute control over telephony but its initial configuration is almost a challenge because we have to manually define each parameter and that becomes a meticulous process of testing and tuning to find the optimal configuration. **What problems is Asterisk solving and how is that benefiting you?** By using Asterisk we make sure that interactions with customers and students are recorded and centralized; it also allows us to achieve a hybrid configuration with fixed IP telephony equipment and virtual lines on portable devices so there is no problem with staff mobility as calls can be managed from any location. ### 4. Highly customizable and flexible Asterisk for VoIP **Rating:** 5.0/5.0 stars **Reviewed by:** Kashif Ali S. | Senior System Administrator, Mid-Market (51-1000 emp.) **Reviewed Date:** April 11, 2023 **What do you like best about Asterisk?** Open-source and free to use, which can save on licensing cost **What do you dislike about Asterisk?** Can be complex to set up and configure, requiring some technical knowledge **What problems is Asterisk solving and how is that benefiting you?** Supports a wide range of VoIP protocols and codecs, making it compatible with a variety of devices and services ### 5. Best SIP Friend **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Telecommunications | Mid-Market (51-1000 emp.) **Reviewed Date:** September 07, 2022 **What do you like best about Asterisk?** Easy to handle and debug at their CLI level **What do you dislike about Asterisk?** NA, everything is very smooth and working fine **What problems is Asterisk solving and how is that benefiting you?** Calling with the VOIP devices on very ease ### 6. Open Source Must Have **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Telecommunications | Small-Business (50 or fewer emp.) **Reviewed Date:** November 02, 2021 **What do you like best about Asterisk?** I love that we can use asterisk to replace high cost high-cost systems completely, and there is great support online for the various issues that you may run into. Asterisk is by far one of the best examples of community-supported systems. **What do you dislike about Asterisk?** Sometimes asterisk has issues that take a lot of technical expertise to fix, and sometimes those things can take a while to muddle through. Often it is better to only install security upgrades, instead of feature upgrades, to avoid breaking the system. **Recommendations to others considering Asterisk:** Be sure to have an experienced asterisk expert help with the setup and have that person be on standby because when issues come up, they should be able to be dealt with quckly. Telephone problems are serious problems! **What problems is Asterisk solving and how is that benefiting you?** Asterisk is a complete solution for telephony-related products. I have entirely revised many phone system issues with it, and it has texting support baked in with many installs. ### 7. Best calling software. **Rating:** 5.0/5.0 stars **Reviewed by:** Shubham S. | system administrator, Small-Business (50 or fewer emp.) **Reviewed Date:** October 19, 2021 **What do you like best about Asterisk?** VOIP feature is the best feature in asterisk. All over the world, every call is connected that only one software is used .one and only asterisk. **What do you dislike about Asterisk?** a configuration setting is very complicated in asterisk. I will give him only one suggestion please, provide more documentation of the asterisk configuration file and video. **Recommendations to others considering Asterisk:** I will recommend for every one **What problems is Asterisk solving and how is that benefiting you?** I create a call center setup in our on-premises area network and create my own version of UI view. ### 8. Perfect experience with Asterisk VoIP **Rating:** 4.5/5.0 stars **Reviewed by:** Verified User in Public Safety | Enterprise (> 1000 emp.) **Reviewed Date:** April 08, 2020 **What do you like best about Asterisk?** Performance and stability of linux server and asterisk voip system together **What do you dislike about Asterisk?** Maybe lack of collaboration tools like video conference **What problems is Asterisk solving and how is that benefiting you?** Very much changed it for good ### 9. Fantastic VOIP system! **Rating:** 5.0/5.0 stars **Reviewed by:** Rick C. | IT Manager, Small-Business (50 or fewer emp.) **Reviewed Date:** November 02, 2020 **What do you like best about Asterisk?** Absolutely love all of the wonderful features of this system! You get a full and complete VOIP phone system to handle all of your business needs. **What do you dislike about Asterisk?** Not really much to dislike about Asterisk, but I would say the update and support cycle could be improved. **What problems is Asterisk solving and how is that benefiting you?** Telephone communication throughout our corporate office and our external warehouse locations. ### 10. Best OpenSource PBX system so far, flexible, robust and highly recommended. **Rating:** 5.0/5.0 stars **Reviewed by:** sooraj K. | System Test Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** April 26, 2020 **What do you like best about Asterisk?** its powerful, flexible and easy to integrate with various industry standard tools. Reliable and robust even under test of "1000 simultaneous calls with RTP" without compromising Calls quality! That's really great about it! It's CLI support a wide range of hardware and software tools. **What do you dislike about Asterisk?** maybe on support point of view I see there should be a central database or library for user-cases so anyone can start quickly on production level, with help of this along with available wiki and documentation. **Recommendations to others considering Asterisk:** Asterisk in voip world is one of the best, you should definitely check it once to know what all it can offer, as PBX, small or big phone system. with it's abilities to integrate easily with a lot of other tools and easy CLI you can achieve almost everything what any other costly standard system offers! all the best with asterisk! **What problems is Asterisk solving and how is that benefiting you?** I have been using it since it's asterisk-1.6 to asterisk- 13 as PBX, sip-trunks and PRI-lines to test simultaneous RTP calls (not just signalling) that upto 1000! on my intel i7-4790 CPU @ 3.60GHz. after doing a lot of research I found this best suited for my work where asterisk does not add any significant delay or call-quality error. As an open source asterisk gives so much! Automating everything is not that tough when you become familiar with its Command line sets. ## Asterisk Discussions - [improve the recognition of multi-frequency tones](https://www.g2.com/discussions/12583-improve-the-recognition-of-multi-frequency-tones) - 2 upvotes - ["How to improve a setup?" " How do you config?"](https://www.g2.com/discussions/how-to-improve-a-setup-how-do-you-config) - 1 upvote - [any good article to know about bridge technology in asterisk 13 ?](https://www.g2.com/discussions/26694-any-good-article-to-know-about-bridge-technology-in-asterisk-13) - 1 upvote - [How can we implement Asterisk ARI ? Please share the details .](https://www.g2.com/discussions/26664-how-can-we-implement-asterisk-ari-please-share-the-details) - 1 upvote - [What is future direction for Asterisk?](https://www.g2.com/discussions/26359-what-is-future-direction-for-asterisk) - 1 upvote - [View Asterisk pricing details and edition comparison](https://www.g2.com/products/asterisk/reviews/asterisk-review-4195904?section=pricing&secure%5Bexpires_at%5D=2026-06-05+09%3A02%3A00+-0500&secure%5Bsession_id%5D=738d226c-b79e-48ce-bd9d-9fa79244ae98&secure%5Btoken%5D=79a7086ecaff4e0f66b8c5338fa7e68a08022b294222d93597ae7b2237fa9988&format=llm_user) ## Asterisk Features **Platform Basics - VoIP Providers** - PBX systems, VoIP Softphone - Call Management - Network monitoring - Integrations - Virtual PBX - SIP trunking services **Agentic AI - UCaaS Platforms** - Autonomous Task Execution - Cross-system Integration - Adaptive Learning - Natural Language Interaction **Basic Communication** - Phone Calls - Video Calls - Instant Messaging - Screen Sharing - Conference Calls - Desk-to-Desk Calls **Extensions** - Tenancy Flexibility - Native VoIP - CCaaS Option **Agentic AI - VoIP Providers** - Autonomous Task Execution - Cross-system Integration - Adaptive Learning - Proactive Assistance **Access** - Software Pairing - Browser Extension - Individual Download **Advanced Features** - Hold Music - Automated Attendants - VOiP Number **Features** - Voicemail to Email - Voicemail to SMS - File Sharing - Voice Conferencing - Video Conferencing - Conference Transcripts ## Top Asterisk Alternatives - [Cisco Unified Communications Manager (CallManager)](https://www.g2.com/products/cisco-unified-communications-manager-callmanager/reviews) - 4.4/5.0 (104 reviews) - [3CX](https://www.g2.com/products/3cx/reviews) - 4.4/5.0 (429 reviews) - [RingEX](https://www.g2.com/products/ringex/reviews) - 4.2/5.0 (1,341 reviews)