Compare IsOn24 vs. Simple Phones

Numa is the AI Customer Operations System built for dealerships that are tired of losing revenue and customers to broken processes. Every day, service calls go unanswered, advisors spend their time fielding "where's my car?" instead of selling work, and managers only find out about unhappy customers after the bad review is already posted. Numa fixes this at the infrastructure level that can follow-up with your customers automatically and give visibility into customer satisfaction to your advisors, reps, and managers. Operator answers and routes every inbound call so nothing goes dark. Status Updates proactively reaches out to customers so advisors stop drowning in callbacks. Voice AI books appointments automatically so customers never wait. LiveCSI flags heat cases in real time so managers can intervene before a CSI score takes the hit. Opportunities can proactively reach out on declined services, open recalls, and equity moments. And it all runs through one unified system: one inbox, one shared context. The result: recovered revenue, freed-up advisors, and a customer experience that increases CSI and builds loyalty.

Modernizing communication for your business, our service connects your business number seamlessly with your employees' phones. With an array of incredible features, callers can navigate through a dial menu voiced by professional actors, allowing them to make purchases, listen to MP3s, or reach specific staff members with ease. You can conveniently make and receive calls using your number across various devices without the caller being aware of the multiple lines. Employees benefit from hidden in-house menus, can transfer calls, and send voicemails directly to their email, all through an intuitive dialpad. Implementing these business functionalities requires no additional software or hardware, making it hassle-free. Your dialpad becomes a vibrant tool, enabling the effortless transfer of your business or personal number at the touch of a button. Choose from an array of contemporary voice features tailored for your business or personal line, and we'll handle the activation on your existing phone without any effort on your part. Our commitment is to adapt your number to your evolving needs whenever you desire.

WaitWell provides organizations with a modern way to coordinate walk-in traffic and scheduled services through a secure, cloud-based queuing and appointment platform. Customers can join virtual queues or book appointments via QR codes, SMS, web links, kiosks, or by chatting with Waillo, an AI agent native to WaitWell that answers questions, explains services, and routes customers into the correct line using natural language. Customers receive live status updates and AI-driven wait time forecasts that reduce uncertainty. WaitWell includes strong real-time reporting and operational dashboards. Waillo Insights builds on this foundation by enabling leaders to ask plain-language questions of their data to uncover service constraints, monitor performance trends, and refine staffing decisions. With real-time visibility, integrated payments, open APIs, and HIPAA and SOC 2 compliance, WaitWell supports scalable, efficient service delivery across locations.

Our autodialer software is used to automate sales calls, payment collections and appointment reminders. It can also be used to broadcast mass emergency voice broadcasting. This system is ideal for Telcos or companies selling callcenter services. It is multi-tenant with billing, white-labeled, and economical to operate as you choose your Voice Provider. Our autodialer software can dramatically increase productivity by dropping busy, disconnected and unanswered lines, passing calls to real people back and answering them, and leaving messages on answering machine.

Intermedia Unite is an all-in-one business communications and collaboration platform designed to keep employees connected and responsive across locations, devices, and teams. The solution combines cloud phone service, video meetings, team messaging, file sharing, customer engagement tools, and productivity features into one integrated platform. By consolidating multiple communication tools, Unite reduces app switching and gives employees a simpler way to call, meet, chat, share files, and engage customers from desktop or mobile devices. Its enterprise-grade calling system includes more than 100 voice features that support professional business communications and consistent customer interactions. The platform also supports enhanced Microsoft Teams experiences, helping organizations extend communication capabilities within their existing collaboration environment. AI features such as transcription, summaries, and conversation insights help users retain important information, identify follow-up actions, and improve team efficiency. Mobile and desktop apps allow employees to maintain a consistent business identity whether they are in the office, remote, or on the go. Backed by strong uptime commitments and J.D. Power-certified support, Intermedia Unite is built for reliability and ease of use. By unifying communications, collaboration, and engagement, Unite helps organizations increase productivity while improving the way teams serve customers.

CallHub is a digital organizing platform built for political campaigns, nonprofits, advocacy groups, unions, and businesses to scale their outreach through calling, texting, email, and workflow automation. The platform includes Predictive, Power, and Auto Dialers for efficient and personalized calling. Its AI-powered Smart Insights analyze call sentiment, while Dynamic Caller ID, Spam Shield, and SHAKEN/STIR compliance ensure higher connection and answer rates. CallHub’s texting tools, Peer-to-Peer Texting, Text Broadcasts, and Text-to-Join support SMS/MMS, URL tracking, and automated replies. Workflow automation enables coordinated multi-channel campaigns, and the mobile app empowers volunteers to participate from anywhere. With native integrations for NationBuilder, NGP VAN, Salesforce, and Blackbaud, CallHub ensures seamless data sync across CRMs. The platform is SOC 2, ISO 27001, GDPR, and TCPA compliant. Trusted by over 200,000 campaigns worldwide, CallHub has powered 1 billion calls and 750 million texts, helping organizations connect, mobilize, and win.

In 60 seconds, activate your international phone number. You can choose from over 120+ countries or 1,000 cities. Forward your calls to any number worldwide. You can route your calls according to the hours and days of your business with robust scheduling options. You can route your calls to your main office during business hours or to voicemail during nonbusiness hours. You can instantly view detailed information about calls to your TollFreeForwarding number. To make informed decisions about outbound sales, and follow-up, learn about your customers' call patterns. Record all or part of your calls to keep track of them. Call detail records are a place where recordings can be stored. They can be downloaded or played at any time.

Turn the world into your office. 800.com allows you to manage your business from your cell phone. No contract, advanced calling features, forwarding for cell phones, and advanced calling features Increase conversions, brand recall, higher call response, and SMS messaging. Manage extensions, send professional greetings and manage your account online. 800.com offers standard forwarding as well as simultaneous and sequential ringing. Toll free numbers are the best standard for telephone numbers and will be taken seriously by US customers. Local numbers signal that your company isn't focused on doing business in the entire country. Every 800.com member has access to every phone system tool, regardless of the plan they choose. You will not only help your customers avoid long distance fees but also your company.

HubSpot AEO is a specialized optimization tool designed to help businesses increase their visibility in AI-generated search results. It focuses on how brands are represented in answers provided by AI platforms such as ChatGPT, Gemini, and Perplexity. The platform provides a visibility score that measures how frequently a business appears in AI responses and evaluates the sentiment of those mentions. It also identifies and tracks relevant prompts that potential customers are using when interacting with AI tools. HubSpot AEO analyzes the sources, domains, and content types that influence AI-generated answers. This allows businesses to understand what drives their presence in AI search results. The platform provides clear, prioritized recommendations to improve visibility and performance. Integration with HubSpot’s CRM enhances insights by using customer data to refine optimization strategies. The tool simplifies the process of adapting to AI-driven search trends without requiring deep technical expertise. Overall, HubSpot AEO helps businesses stay competitive as AI becomes a primary discovery channel.

The sovereign AI that turns every answer into lasting expertise. Cut response times by up to 90%. Optivalue.ai automates information discovery and drafting, freeing experts for the high-impact personalization that wins bids. It acts as an expert librarian for your knowledge base: submit a questionnaire — RFP, audit, security or compliance — and get a complete, source-verified draft in minutes. Every answer is built on 89 Domain-Specific Language Models specialized by function and industry, not a generic LLM. Each answer carries a 0-100 confidence score and precise source citations (document, page, timestamp) for full traceability. When no source supports an answer, Optivalue.ai says "I don't know" rather than hallucinate. You don't just answer correctly — you prove it. It's an engine of progress for your organization. Optivalue.ai runs a gap analysis to identify weaknesses in your documentation. Following the recommendations strengthens your internal documents and builds lasting expertise across the organization. Your data stays yours: a private AI per client, never shared, deployed on-premise or in a sovereign cloud. Enterprise-grade security, compliant with GDPR, ISO 27001, HIPAA, SOC 2 and FedRAMP. All plans include unlimited users and unlimited projects. Start your 14-day free trial — no credit card, no commitment. Trusted by L'Oréal, Stellantis, Thales Alenia Space, Exaion (EDF Group), Equans and Mango. Winner of the European Sovereignty Prize 2026 (AI category).