Yes, both ZipCall and Jive Voice offer a Free Trial.
ZipCall is designed for Large Enterprises, Medium Business and Small Business.
Jive Voice is designed for Large Enterprises, Medium Business and Small Business.
Pricing for ZipCall Starts at $49/Month whereas for Jive Voice Starts at $19.95/User.
Some top alternatives to ZipCall includes Jive Voice, JustCall, VoiceIQ, Jet Interactive, Voxloud, JivoChat, Qualified, Workvivo, Voiclet, Vidiwise, Jikoo and IFTTT.
Some top alternatives to Jive Voice includes CloudTalk, Dialpad Talk, VoIPstudio, Vonage Business, Vodia PBX, VoiceIQ, 4PSA VoipNow, MightyCall, Ringover, Continent Telecom IP PBX and Comcast Business VoiceEdge.