That I can use it on my cell phone, but only when connected to WiFi

The sleek interface design of the system very easy to use tool

OnSip is a great platform that can be customized in so many ways to serve a variety of purposes. I was hosting a fundraising event that needed a 1-800 number routed to make-shift call center. It was a very specific request and OnSip walked me through the entire setup live and provided day-of tech support. The support team member even did a very professional recording for when you called into the 1-800 number at no additional cost. The support allowed for 100s of phone calls to ping to a call center staffed by 10 volunteers on laptops for the fundraiser. There was not one issue the entire day. What I love about Onsip is the customization, it can do whatever you need it to do and the live and easy-to-access support can walk you through the setup that fits your needs. I had spoken with ATT and Comcast to set up the 1-800 lines and it was going to be so expensive, involved drilling and rolling out phone lines on the floor. I spoke with Zoom and the customer support was dismal, I was contacted by sales people trying to sell me large packages and there was no tech support for setting up event and delays between communication. I wish I had found Onsip earlier as it was such a simple solution with phenomenal customer service. I will definitely be using them again for specialty events.