VoIPstudio offers Free Trial, but PBX Plus by 500apps does not.
VoIPstudio is designed for Large Enterprises, Medium Business and Small Business.
PBX Plus by 500apps is designed for Large Enterprises, Medium Business and Small Business.
Pricing for VoIPstudio Starts at $4.99/User/Month whereas for PBX Plus by 500apps Starts at $9.99/Month when Billed Yearly.
Some top alternatives to VoIPstudio includes Voiptime, CloudTalk, Dialpad Talk, Vonage Business, Vodia PBX, PBX Plus by 500apps, Voxloud, MightyCall, Continent Telecom IP PBX, iPlum and OpenPhone.
Some top alternatives to PBX Plus by 500apps includes CloudTalk, VoIPstudio, Vonage Business, Vodia PBX, 3CX, VoiceIQ, Voxloud, TR Cloud VoIP, MightyCall, Continent Telecom IP PBX and Comcast Business VoiceEdge.