CallHarbor vs. Zero Comparison


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It replaces fragmented tools by combining business phone service, video conferencing, team chat, and file sharing into one seamless experience, so employees can collaborate without switching apps. Unite delivers enterprise-grade calling with 100+ features, integrated customer engagement, and enhanced Microsoft Teams experiences. With mobile and desktop apps, users can call, meet, message, and engage customers from anywhere while maintaining a consistent business identity. AI-powered transcription, summaries, and insights help teams capture details and follow up efficiently. Backed by 99.999% uptime and J.D. Power-certified support, Unite ensures reliable performance—resulting in simpler communications, more productive teams, and better customer engagement. 1,631 Ratings Visit Website net2phone net2phone is an AI-powered business communication platform for companies serious about customer experience. 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Managed VOIP phone systems with speed, flexibility, and more for small & large businesses in the USA. Intulse was founded in 2015 to help businesses that were stuck using old communication systems that only did a little but cost a whole lot find a better solution to meet their needs. Intulse’s VoIP UCaaS (Unified Communication as a Service) solutions are designed to increase productivity through the Intulse App, CRM integration (ex. Salesforce & HubSpot), softphones, time-based routing, virtual receptionists, customized greetings, unlimited extensions, and more. Customers who choose Intulse as their cloud VoIP provider get the power of a feature-rich system that can be customized to best-fit how they do business. Intulse’s communications specialists work closely to help select and implement features to ensure each business gets the most out of their system and service. 140 Ratings Visit Website 800.com 800.com is a business phone and call tracking platform that helps small and growing businesses understand, manage, and respond to inbound calls more effectively. The platform provides local and toll-free numbers, call tracking, call recording, voicemail, SMS, and detailed call reporting so teams can see where calls come from and how they’re handled. Businesses use 800.com to track phone leads across websites, ads, social media, and offline marketing, improve response times, and follow up on missed calls. With integrations for Google Ads, GA4, Meta, Microsoft Ads, and popular CRMs, 800.com connects call data to marketing and sales workflows. The platform is easy to set up, flexible as businesses grow, and designed to turn phone calls into clearer insights and better customer experiences. 2,381 Ratings Visit Website ULTATEL Ultatel stands at the forefront of business communications, empowering organizations with cutting-edge cloud VoIP technology to boost productivity and stay connected with customers anywhere, anytime. Our plans come fully scalable, featuring unlimited HD Voice, SMS, Fax, Chat, Video, and over 40 advanced features and integrations. Experience true transparency with our no-hidden-fees pricing model—what you see is exactly what you pay! Recognized as a Gartner Category Leader and G2 High Performer, Ultatel offers a unified communications platform that evolves with your business. Powered by our innovative FlexScale technology, you can effortlessly adjust your communication needs without any downtime or penalties. Our Award-Winning Customer Support team is here for you 24/7/365, delivering a remarkable 94% first-contact resolution rate. With Ultatel, enjoy the peace of mind that comes with being connected beyond limits. 114 Ratings Visit Website Community Phone Calling made modern. Your business number. Your employees' phones. Our amazing features. A dial menu spoken by our voice actors. Callers press numbers to make purchases, hear MP3s, connect to specific staff, and more. Make and answer calls using your number on multiple phones without the caller ever knowing. Employees hear secret in-house menus, transfer calls, and send voicemails to their email, all from their dialpad. These business features require no new software or hardware. Your dialpad come to life. Porting your business or personal number at the press of a button. Select from our menu of modern voice features for your business or personal line. We'll activate these features on your current phone for you. No work (or learning) required from you. We'll be here to transform your number whenever your desires change. 1,531 Ratings Visit Website Aircall Aircall is an AI-powered customer communications and intelligence platform that unifies phone, messaging, and call center operations. Designed for sales and support teams, it enhances every interaction with features like AI Voice Agents, real-time conversation coaching, and integrated WhatsApp messaging. With powerful analytics, call recording, and shared inboxes, teams gain clarity and can resolve customer issues faster. The platform is easy to set up, offering quick number claiming, seamless integrations, and customizable workflows. Trusted by over 23,000 companies worldwide, Aircall helps businesses improve connection rates, boost CSAT scores, and streamline onboarding. By combining automation with human-first AI, Aircall reduces busywork so teams can focus on building better customer relationships. 1,838 Ratings Visit Website Datagate Telecom Billing Datagate is a SaaS, telecom billing solution for MSPs that sell UCaaS, VoIP, mobile voice & data services under their own brand. Datagate integrates with popular software systems that MSPs use including ConnectWise Manage, QuickBooks, Xero, Stripe, Authorize.net and others. Suitable for MSPs in USA, Canada, UK, Australia and New Zealand; Datagate & partners handle all telecom tax & compliance requirements. 12 Ratings
About CallHarbor offers small and medium-sized business phone & UCaaS systems. Our platform give you statistics on your employees, integrates with your existing applications, and allows you to access full functionality even when out of the office. We are so much more than just in and out calling. CallHarbor works with businesses in diverse industries and continually provides industry leading systems to streamline workflow in communication. CallHarbor offers leading mobile and web apps to allow you to work on the go. From making calls on your desktop, to checking your voicemail in your email, we have it all. CallHarbor does not limit the amount of Queues, Auto-Attendants, Parking Lots, or Users your system can have. This makes it easy to start small and grow big. We're with you every step of the way. We have reliable geo-redundant data centers so that you don't have to worry about a dropped call. We offer 25+ world class features with your original plan, and give you one great flat rate.	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 Supported Mac Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Supported iPad 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 Businesses interested in an effective and cost-efficient business 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 Supported Online Supported	Support Phone Support Supported 24/7 Live Support Supported Online Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or videos
Pricing $18/month/user $18 billed monthly, per user - based on a 36 month agreement. This includes 25+ world class features, our great customer service, and on-site training & installation. Free Version Not Supported Free Trial Not 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 Supported In Person Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Supported
Company Information CallHarbor Founded: 2006 United States callharbor.com	Company Information Zero Founded: 2015 Uruguay getzero.co
Alternatives IPFone	Alternatives RingCentral RingEX RingCentral
Broadvoice	Ooma Office Ooma
2600Hz	Intermedia Unite Intermedia
Fusion Connect	Phone.com
T-Max Phone Systems T-Max View All	8x8 Work 8x8 View All
Categories Business Phone Systems Supported Business VoIP Supported UCaaS Supported	Categories Audio Conferencing Supported Business Phone Systems Supported Business VoIP Supported Telephony Supported UCaaS Supported Unified Communications Supported
Business Phone Systems Features Call Logging Not Supported Call Monitoring Not Supported Call Recording Not Supported Call Routing Not Supported Employee Directory Not Supported IVR / Voice Recognition Not Supported Mobile Access Supported Virtual Call Center Supported Web Conferencing Supported Business VoIP Features Call Parking Supported Call Recording Supported Contact Management Not Supported Encryption Not Supported IVR / Voice Recognition Not Supported Ring Groups Not Supported SIP Trunking Supported Unified Communications Supported Voice Quality Enhancement Not Supported
Integrations Gmail Supported HubSpot CRM Supported HubSpot Customer Platform Supported Microsoft 365 Supported QuickBooks Online Supported RealTime PSO Not Supported Redtail CRM Supported Salesforce Supported Senegal Software Not Supported Stylumia Not Supported Titan Supported Zendesk Supported Zoho CRM Supported Show More Integrations View All 11 Integrations	Integrations Gmail Not Supported HubSpot CRM Not Supported HubSpot Customer Platform Not Supported Microsoft 365 Not Supported QuickBooks Online Not Supported RealTime PSO Supported Redtail CRM Not Supported Salesforce Not Supported Senegal Software Supported Stylumia Supported Titan Not Supported Zendesk Not Supported Zoho CRM Not Supported Show More Integrations View All 3 Integrations
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