Amazing

Ive tried all the other SIP VOIP apps and they all had issues. This app has every feature I can think of and is easy to use. Every phone call rings perfectly. This app takes up some background resources since SIP phones need to be constantly connected. Therefore, if you use this app, try to close other apps for efficiency.

G2akaJT about Groundwire: VoIP SIP Softphone, v3.3.4