5 stars: Thoroughly surprised, my other SIP provider and Zopier were unstable at best, every call has some through with Linphone, calls that I would have missed, and my other VoIP carrier supports forwarding to a URI. I had paid for Zoiper until March and they decided to lock the app. Every outbound call has had superb audio quality, interface is clean and simple.
4 stars: Since this does not work as the default dialing phone app, I will use linphone for push receiving calls and then zoiper (with background data off) not running so it wont burn up my battery so bad. This should be a free solution to the limitation of linphone I think!
4 stars: Overall a positive experience using VoIP. It adds a layer of protection that is sadly missing on traditional cellular calls. The texting interface is buggy.
5 stars: Surprised, Linphone with free g729, which is very useful when cellphone signal weak. 5star!, Recommended!
5 stars: App used to work fine! However nowadays when in wifi connection in progress all the time. When I switch to mobile data it works instantly. Disabling VoWifi and rebooting solved my problem! You should put that on your wiki
5 stars: A fairly solid and reliable app available on multiple platforms. And no nagging or advertisements
5 stars: Excellent app for my sip phone service. I direct my mobile number to a local UK number provided by a voip service and I can receive and make calls anywhere in the world. Call quality was excellent, as good...