Easy access for end user functionality and performance. Review collected by and hosted on G2.com.

Requires high level knowledge to program. Review collected by and hosted on G2.com.

Asterisk is extremely flexible as a PBX development platform, and can be very stable if deployed properly. Review collected by and hosted on G2.com.

Major changes in how core functions work in recent versions, forcing us to make major changes in our own software to maintain compatibility with newer versions of Asterisk. Review collected by and hosted on G2.com.

It provides most of the features that are offered by other services Review collected by and hosted on G2.com.

I do not like the fact that asterisk doesn't have a a better way of using queues and statistics. Review collected by and hosted on G2.com.

Asterisk is a great project, full featured and enterprise ready. We use it for all of our conference calling, interoffice communication, and making and receiving outside calls. It's rock solid, Debian based, and ready for deployment. We have put them in lots of places, and never have any issues. You can buy support for cheap and the help they give you is top notch.

It's easily customizable, and works with EVERY device on the market. It's also been around forever and has a solid future. Review collected by and hosted on G2.com.

The interface isn't the best, the web stuff is kind of dated. The upgrade/update scheme can be a bit funky if you're not paying attention to newer releases.

A lot of work to get setup, but once you get everything working good it's an amazing solution. A lot of testing needs to be done to see if it can meet your organization's needs. Review collected by and hosted on G2.com.

Very performance software and the best is free, with application in small and big companies Review collected by and hosted on G2.com.

the support was difficult. I had to use a old version of PC to install Asterisk. Review collected by and hosted on G2.com.

The asterisk software is the best opensource pbx system in the world. It's integrate into a lot of different distribution dedicated to act as PBX box. I.e. you can find asterinx into freepbx etx. You can support all the standard SIP phone: software or hardware based. Review collected by and hosted on G2.com.

By default it's not really complete: for example the video conf is not very complete and also some codec are missing Review collected by and hosted on G2.com.

I like the different things you can do with this product. Telephony configuration is one of the best features. Review collected by and hosted on G2.com.

I don't have any issues with this product. Review collected by and hosted on G2.com.

Best of all was the price (free). I used Asterisk with my VOIP system. It worked well and had no major issues. Review collected by and hosted on G2.com.

Setup was rather difficult. I had to rely on extensive guides and troubleshooting and experimental steps. Review collected by and hosted on G2.com.

Ease of use when using the FreePBX management interface. Has the majority of features you would want from a VoIP PBX. Review collected by and hosted on G2.com.

Endpoint management can be confusing. There is an endpoint manager you can add-on via a commercial license but its pretty generic in how it configures devices. Its good for devices that all share a common configuration. Review collected by and hosted on G2.com.