OpenVBX vs. Zero Comparison


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About OpenVBX is a hosted business phone system that connects with a customer’s Twilio account for calling and messaging. Teams use a browser-based dialer and shared inbox to make and receive calls, manage two-way SMS, review call logs and recordings, and build visual call flows with menus, business-hours routing, voicemail, and other IVR steps. The service also supports call transfers, conferencing, voicemail transcription, appointment booking, and workflow automations. Plans include virtual numbers and team calling features, while higher tiers add sales tools such as click-to-call, local presence dialing, CRM pipelines, bulk calling, SMS campaigns, and an AI voice agent. OpenVBX is designed for organizations including real estate teams, healthcare clinics, and loan companies. It is accessed as a hosted web service, with an Android app; Twilio usage charges are billed separately.	About Zero unites all your enterprise voice, video and messaging into a single, mobile ready, cloud platform designed for the modern workforce. Integrate all your business communications with Zero’s all-inclusive platform. Multi-level auto attendant, ring groups, business hours, voicemail and much more. Instant provisioning and activation of phone numbers in over 50 countries. Eliminate the cost of mobile and internal calls inside your company with our free VoIP apps. Host conference calls with up-to 40 participants and video meetings with up-to 6 participants. Accelerate team communications with secure one on one and group messaging. Simultaneous ringing, call transfer, three way call, hold, call recording and more. Make and take calls from your PC, mobile or desk phone using your business phone number. Access your voicemail, enterprise messaging system and conferencing service anywhere.
Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Supported Chromebook Not Supported	Platforms Supported Windows Not Supported Mac Not Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Real estate agents and brokerages, healthcare clinics and loan companies that want a Twilio-based phone system	Audience Companies of all sizes that need a UCaaS system to improve their business communications
Support Phone Support Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Supported 24/7 Live Support Supported Online Supported
API Offers API Not Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $99/month The Connect Starter plan is $99 per month for up to one user. Plans are billed monthly. OpenVBX requires a Twilio account; Twilio bills call and text usage separately. A 7-day free trial is offered, and the site does not list a free plan. Free Version Not Supported Free Trial Supported	Pricing $8 per user per month Free Version Not Supported Free Trial Supported
Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Supported
Company Information OpenVBX Founded: 2025 India openvbx.app	Company Information Zero Founded: 2015 Uruguay getzero.co
Alternatives Votelly	Alternatives RingCentral RingEX RingCentral
Calilio	Ooma Office Ooma
SessionPBX SessionTalk	Intermedia Unite Intermedia
Acepeak	Phone.com
Zoom Phone Zoom Communications View All	8x8 Work 8x8 View All
Categories Business Phone Systems Supported Business VoIP Supported Cloud PBX Supported	Categories Audio Conferencing Supported Business Phone Systems Supported Business VoIP Supported Telephony Supported UCaaS Supported Unified Communications Supported

Integrations Brevo Supported Gmail Supported Google Calendar Supported Google Meet Supported Mailchimp Supported Mailgun Supported Microsoft Teams Supported RealTime PSO Not Supported Senegal Software Not Supported Stylumia Not Supported Twilio Supported Zoom Supported Show More Integrations View All 9 Integrations	Integrations Brevo Not Supported Gmail Not Supported Google Calendar Not Supported Google Meet Not Supported Mailchimp Not Supported Mailgun Not Supported Microsoft Teams Not Supported RealTime PSO Supported Senegal Software Supported Stylumia Supported Twilio Not Supported Zoom Not Supported Show More Integrations View All 3 Integrations
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