Popular alternatives include VoiceIQ, Speakap, Vocantas Communicate, Voxbi and Voiclet.
Key factors include Collaboration, Multi-channel Messaging, Alerts (Notifications), Automated Transcripts, Meetings and pricing.
Tools like Letsdial, Dialaxy, Calilio, VoIP.ms and Infinity Telecom are best for small businesses for VoIP Providers.