Very easy to install and carries all the desired functions normally needed on VoIP system Review collected by and hosted on G2.com.

Dial plan functions were little difficult to create but there were few GUI applications to build and integrate. Review collected by and hosted on G2.com.

An open-source approach to all telephony features is amazing. It gives you limitless freedom from basic IP Telephony functions to advanced VOIP capabilities. I have used all most all features in detail and found them exceptional. Review collected by and hosted on G2.com.

More concreteness and tighter control are required. Review collected by and hosted on G2.com.

Asterisk give high flexibility in companies even if it is a global company or a small office business. Review collected by and hosted on G2.com.

On the time of my implementation wasn't available a UI to manage basic function. As after deploy was needed a high level of knowledge from the customer to basic changes. Review collected by and hosted on G2.com.

It was helpful in VoIP calling and made easy coding environment Review collected by and hosted on G2.com.

You have to update every time the change you make with coding Review collected by and hosted on G2.com.

Working on command line and analysing the log file to examine the problems during the work process. Review collected by and hosted on G2.com.

It is a little bit difficult to personalize or to modified from the standard meaby this is in base of knowledge. Review collected by and hosted on G2.com.

Simple and easy to use with lot of features Review collected by and hosted on G2.com.

Downloading issue when we download it many time it is not completely downloaded Review collected by and hosted on G2.com.

Agile interoperability with other app variety such as CRM, ERP, collaboration etc Review collected by and hosted on G2.com.

I am always looking for a good design, it pulls me to get inside of the app.

So design is sometimes difficult to like on asterisk. Review collected by and hosted on G2.com.

Asterisk with a2billing.its very easy for dynamic user management. Review collected by and hosted on G2.com.

As being a developer. I would like to have a with proper test documentation for developer for integration with backend api. Like api creation for registration of new user. Etc. Review collected by and hosted on G2.com.

I like that it is a tool based on linux, a powerful central IP, that allows to realize SIP trunks, Create IVR, voice mails, messaging.

It is compatible with all audio codecs.

It allows integration with all IP telephony tools, it is interoperable and fault tolerant Review collected by and hosted on G2.com.

It is required to be an expert in Linux, to know about repositories and free software, the installation is complex, the positive is that there is a lot of information available on the web, in tutorials, online courses. Review collected by and hosted on G2.com.

Notification integration, I had to integrate Openfire before to work with a distributed system, but that's not a problem for me anymore. No more data pooling to get logs. Review collected by and hosted on G2.com.

Nothing that much, as I am loving and that's all Review collected by and hosted on G2.com.