Honestly, not much, the backend is incredibly diffucult to navigate and took a long time to understand everything.

Low prices, clear communication, easy to make a first call.

I've not been using VoIPstudio very long yet, however after looking for a provider I can obtain business phone features from in a residential setting I came across this provider. We have a large home with IP phones in each room - the few residential providers I've checked out didn't allow use of SIP phones without purchasing very expensive business packages. VoIPstudio allows me to use a business phone system but at prices that beat most small residential providers. I work from home so to have call forwarding features, soft phones and IVRs to route my work calls to my office is so beneficial. Setup was super simple and it integrates beautifully with my existing Yealink hardware - with the added benefit that I can purchase more phones if needed directly from VoIPstudio. I love how easy it is to add or change extra users.