--- title: OnSIP Reviews meta_title: 'OnSIP Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 28 reviews by the users' company size, role or industry to find out how OnSIP works for a business like yours. aggregate_rating: rating_value: 4.1 review_count: 28 scale: '5' date_modified: '2026-08-07' parent_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity --- # OnSIP Reviews **Vendor:** OnSIP **Category:** [VoIP Providers](https://www.g2.com/categories/voip-providers) **Average Rating:** 4.1/5.0 **Total Reviews:** 28 ## About OnSIP OnSIP is a leading provider of real-time communications (RTC) services to more than 100,000 customer accounts. OnSIP business VoIP customers enjoy the benefits of an on-demand phone system without the traditional high cost, burden, and inflexibility. The company also offers a cloud platform and simple APIs for developers to rapidly and affordably build RTC applications of their own. ## OnSIP Pros & Cons **What users like:** - Users praise OnSIP's **responsive and knowledgeable customer service** , which empowers them to solve issues efficiently. (1 reviews) - Users praise the **extremely responsive customer support** of OnSIP for their knowledgeable and empowering assistance. (1 reviews) - Users value the **quick response** of OnSIP's US-based support, finding them knowledgeable and empowering for problem-solving. (1 reviews) - Users appreciate the **quick setup** of OnSIP, enhancing their experience with responsive customer support and immediate assistance. (1 reviews) - Users praise the **exceptionally responsive customer support** of OnSIP, appreciating their knowledge and willingness to help swiftly. (1 reviews) **What users dislike:** - Users experience **performance issues** with OnSIP, facing frequent bugs and needing constant restarts on the desktop app. (1 reviews) - Users experience **platform issues** with OnSIP, including bugs in the iPhone app and frequent desktop app restarts. (1 reviews) ## OnSIP Reviews ### 1. Fantastic US-Based Support Team Makes All the Difference **Rating:** 4.5/5.0 stars **Reviewed by:** Leah T. | Marketing/Sales/Customer Service, Small-Business (50 or fewer emp.) **Reviewed Date:** December 18, 2025 **What do you like best about OnSIP?** Their US-based customer support team is EXTREMELY responsive, knowledgable, understanding, and helps empower me to problem solve and find solutions on my own; they're also more than happy to help with quick fixes or issues where it is, in fact, user error or I'm missing something. Very patient, considerate, educated, and ready to solve the problem immediately. **What do you dislike about OnSIP?** The iphone app is buggy, desktop app often requires multiple shut downs and restarts day-to-day to get it to work. **What problems is OnSIP solving and how is that benefiting you?** Phone answering, call tree, answering across multiple devices, transferring calls ## OnSIP Discussions - [How much does OnSIP cost?](https://www.g2.com/discussions/how-much-does-onsip-cost) - 1 comment - [How does OnSIP work?](https://www.g2.com/discussions/how-does-onsip-work) - 1 comment - [View OnSIP pricing details and edition comparison](https://www.g2.com/products/onsip/reviews?filters%5Bsentiment_snippet%5D=2409458&qs=pros-and-cons§ion=pricing&secure%5Bexpires_at%5D=2026-08-14+20%3A09%3A23+-0500&secure%5Bsession_id%5D=282d409a-f9a0-4030-9def-f90e4f2e3106&secure%5Btoken%5D=a34993fc1450d16aa08e859e38cf449e72a4feaf0db24ac7a09270e8754df7d1&format=llm_user) ## OnSIP Features **Additional Functionality** - Third-Party Integrations - To-Do List - @mentions - Single Sign On - File Management - Activity Dashboard - Drag & Drop - Alerts/Notifications - Prioritization - Access Controls/Permissions - Screen Sharing - Content Management - Brainstorming - AI Copilot - File Transfer - Calendar Management - Status Tracking - Real-Time Notifications - Version Control - Task Management - Activity Tracking - Real Time Editing - Communication Management - Chat/Messaging - Tagging - Generative AI - Assignment Management - Task Scheduling - Project Management - Collaboration Tools - Workflow Management - Secure Data Storage - File Sharing - Document Storage - Task Progress Tracking - Discussions/Forums - Commenting/Notes - Reporting & Statistics - Contact Management - Video Conferencing - Progress Tracking - Mobile Access - API - Document Management - Customizable Branding **Platform Basics - VoIP Providers** - PBX systems, VoIP Softphone - Call Management - Network monitoring - Integrations - Virtual PBX - SIP trunking services - Contact Management - Communication Management - Fax Management - Call List Management - Call Center Management - Queue Management - Third-Party Integrations - Computer Telephony Integration - Real-Time Monitoring - Call Monitoring - Workflow Management - Call Center Integration **Basic Communication** - Phone Calls - Video Calls - Instant Messaging - Screen Sharing - Conference Calls - Desk-to-Desk Calls - SMS Messaging - Chat/Messaging - Video Call Recording - Two-Way Audio & Video - SIP Trunking **Agentic AI - VoIP Providers** - Autonomous Task Execution - Cross-system Integration - Adaptive Learning - Proactive Assistance **Access** - Software Pairing - Browser Extension - Individual Download **Advanced Features** - Hold Music - Automated Attendants - VOiP Number **Additional Functionality** - Live Chat - Multi-Channel Communication - Customizable Reports - Call Tracking - Automatic Call Distribution - Real-Time Data - Purchasing & Receiving - Employee Directory - AI Copilot - Activity Tracking - Collaboration Tools - Call Scripting - Real-Time Reporting - Call Recording - Real-Time Analytics - Virtual Call Center - Activity Dashboard - Reporting & Statistics - CRM - Auto-Dialer - Generative AI - Contact Database - Call Transfer - Call Reporting - Call Logging - Voice Mail - Caller ID - Customizable Caller ID - Mobile Access - Callback Scheduling - IVR - API - Interaction Tracking - Call Routing - Alerts/Notifications - Video Conferencing - Call Conferencing - Call Disposition - Predictive Dialer - Spam Blocker - On-Demand Recording - Caller Profiles - Multiple User Accounts - VoIP Connection - Conferencing - Text to Speech - Reporting/Analytics - VoIP - Call Queues - Call Screening - Access Controls/Permissions - Online Voice Transmission - Unified Communications - Voicemail Transcription ## Top OnSIP Alternatives - [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) - 4.4/5.0 (1,390 reviews) - [RingEX](https://www.g2.com/products/ringex/reviews) - 4.2/5.0 (1,391 reviews) - [Vonage Business Communications](https://www.g2.com/products/vonage-business-communications/reviews) - 4.3/5.0 (477 reviews)