Five9 vs Zoiper Comparison: Reviews, Features, Pricing & Alternatives in 2026

Detailed side-by-side comparison to help you choose the right solution for your team

Updated Apr 2026 8 min read

Five9

0.0 (0 reviews)

Five9 is a cloud contact center solution that uses artificial intelligence to help you automate customer interactions and provide your agents with real-time coaching to improve service results.

Starting at --
Free Trial NO FREE TRIAL
VS

Zoiper

0.0 (0 reviews)

Zoiper is a versatile VoIP softphone application providing encrypted voice, video, and instant messaging across multiple platforms to help you maintain secure and reliable business communications.

Starting at Free
Free Trial NO FREE TRIAL

Quick Comparison

Feature Five9 Zoiper
Website five9.com zoiper.com
Pricing Model Custom Freemium
Starting Price Custom Pricing Free
FREE Trial ✘ No free trial ✘ No free trial
Free Plan ✘ No free plan ✓ Has free plan
Product Demo ✓ Request demo here ✘ No product demo
Deployment saas mobile desktop saas mobile desktop
Integrations Salesforce Microsoft Dynamics 365 Zendesk ServiceNow Oracle HubSpot Microsoft Teams Zoom NetSuite Kustomer Outlook LDAP Active Directory Salesforce SugarCRM Zoho CRM
Target Users mid-market enterprise freelancer small-business mid-market
Target Industries
Customer Count 0 0
Founded Year 2001 2003
Headquarters San Ramon, USA Sofia, Bulgaria

Overview

F

Five9

Five9 is a cloud-based contact center platform designed to help you manage customer interactions across voice, email, chat, and social media. Instead of managing disconnected hardware, you get a unified digital workspace where your agents can handle inbound and outbound calls while accessing customer data from your CRM. The platform focuses on using automation to handle routine inquiries so your team can focus on complex issues that require a human touch.

You can scale your operations up or down based on seasonal demand without worrying about physical infrastructure. It provides your managers with real-time visibility into agent performance and customer sentiment through AI-driven analytics. Whether you run a small help desk or a massive global support operation, the software helps you reduce wait times and increase first-contact resolution through intelligent routing and automated self-service options.

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Zoiper

Zoiper is a cross-platform softphone that transforms your existing devices into powerful communication hubs. You can make crystal-clear voice and video calls over the internet using your preferred VoIP provider or PBX system. It eliminates the need for expensive hardware by turning your smartphone, tablet, or computer into a fully functional business phone.

You can manage your contacts, send instant messages, and handle multiple calls simultaneously through a unified interface. The software focuses heavily on security, offering military-grade encryption to keep your conversations private. Whether you are a remote freelancer or part of a large call center, Zoiper provides the flexibility to stay connected from anywhere with an internet connection.

Overview

F

Five9 Features

  • Intelligent Virtual Assistant Deploy AI-driven bots to handle routine customer questions and tasks automatically without needing a live agent.
  • Omnichannel Routing Direct customers to the right agent across voice, chat, email, and SMS based on their specific needs.
  • Agent Assist Provide your agents with real-time guidance and automated summaries during live calls to speed up resolutions.
  • Predictive Dialer Automate your outbound dialing to increase talk time and ensure your agents spend more time speaking with prospects.
  • Workflow Automation Connect your contact center to your CRM to trigger automatic data updates and follow-up tasks across platforms.
  • Real-Time Reporting Monitor your team's performance with live dashboards that track call volume, wait times, and customer satisfaction metrics.
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Zoiper Features

  • Multi-Protocol Support. Connect to almost any VoIP provider or PBX using SIP, IAX, or XMPP protocols for maximum flexibility.
  • Military-Grade Encryption. Secure your voice and video calls with TLS, SRTP, and ZRTP encryption to prevent eavesdropping.
  • Unified Communications. Handle voice, video, and instant messaging in one application to streamline your daily team interactions.
  • Push Notifications. Receive calls even when the app is closed to save battery life on your mobile devices.
  • Call Management. Transfer, hold, and record calls directly from the interface to maintain professional standards during every interaction.
  • Contact Integration. Sync your existing contacts from Outlook, LDAP, or your mobile phonebook for quick one-click dialing.

Pricing Comparison

F

Five9 Pricing

Z

Zoiper Pricing

Zoiper Free
$0
  • Non-commercial use only
  • SIP and IAX support
  • Voice and video calls
  • Basic contact management
  • Available on all platforms

Pros & Cons

M

Five9

Pros

  • Reliable uptime for critical business communications
  • Deep integrations with popular CRM platforms
  • Flexible scaling for seasonal call volume
  • Powerful AI tools for automated summaries
  • Comprehensive reporting and supervisor monitoring tools

Cons

  • Interface can feel dated for some users
  • Initial configuration requires significant technical setup
  • Advanced reporting has a steep learning curve
A

Zoiper

Pros

  • Extremely low resource usage on older hardware
  • Works with almost any VoIP service provider
  • Excellent audio quality even on slower connections
  • Strong focus on privacy and call encryption
  • One-time purchase option avoids recurring monthly fees

Cons

  • Interface feels dated compared to modern apps
  • Initial configuration can be technical for beginners
  • Mobile push notifications sometimes require manual setup
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