Top 7 AI Call Bots for 2025 [Ranked & Reviewed]
AI Call Bots are becoming a part of daily operations, especially in customer service departments, Almost 80% of businesses use them already. If you have the same plan, this guide is where you need to start.
Why trust this review?
This review is the output of testing and trying over 19 AI Call Bots by a team comprising 27 software engineers. The test included integrating the AI Call Bot in every day operations and comparing their metrics.
Table of Contents
What Is An AI Call Bot?
An AI Call Bot is a software or system that uses AI technologies like Natural Language Processing (NLP), Speech Recognition and Text-To-Speech (TTS) to understand the caller intent and deliver contextually relevant responses in a natural and human-like tone.
These virtual assistants, otherwise known as AI voice agents, AI phone agents or AI calling bots are capable of handling phone conversations autonomously.
Key Benefits of AI Call Bots and Phone Agent
AI Call Bots has already started a big change across businesses. It impacts both the company and its user base, with a number of benefits. Let’s name a few here:
Benefits for Businesses:
Reduces resource and operational costs
Introducing an AI Call Bot into business operations reduces almost 55% of expenses in hiring, training and managing human agents. They carry out repetitive tasks like FAQs, scheduling appointments and updating information. Consequently, the handling time comes down up to 75%, making the department more efficient.
Improves customer experience
With AI Call Bots, you can avail support to your customer 24/7/ They need not wait on long IVR queues, and listen to boring music when on hold.
Users can avail support from the call bot in any language they prefer and get connected to a human agent immediately, if they need escalation or further support on their purpose of call.
Scales with demands
A Call Bot can handle hundreds of calls at the same time, without any wait times. This means, you’ll just need one software in the place of hundreds of human agents handling basic repetitive queries.
Rather, these human agents can be placed in tasks that require advanced support or core focus on the business. What’s more interesting is – these call bots can proactively predict issues like failed payments or delayed deliveries and contact customers before problems escalate.
Benefits for Customers:
Instant access to support
Your customers can get help with your business anytime, and from anywhere, without the need to wait. They can check order status or reset passwords, without having to wait on hold to connect to a human agent.
High-quality interactions
AI Call Bots, especially the ones with RAG implementation, provide consistent answers by accessing information from both internal and external databases. They are capable of detecting the tone of the customer, understand their intent and answer in a more personalized and human-like voice.
Better convenience
AI Call Bots make customer service more inclusive and easy to use. Users can connect to these bots from any device they use, and through any channel they prefer (voice, chat or email) without losing conversation history.
Overall, AI Call Bots is undeniably a smart choice for businesses looking to improve both internal efficiency and customer experience hand-in-hand. The list extends to each use case and with further advancements in the technology, they are more likely to extend more.
Best AI Call Bots and Phone Agents 2025
1. MirrorFly
Customizable AI Call Bot with complete data control
Best for: All scales of business looking for custom AI call bot solution
MirrorFly AI Voice Agent is a white-label CPaaS solution that enables businesses to build and deploy self-hosted AI call bot platforms across web and mobile apps. It offers end-to-end customization, allowing teams to personalize workflows, 1000+ real-time communication features, 500+ AI Agent features and user interfaces to match their specific business logic.
Unlike most cloud-only platforms, MirrorFly lets you fully own and control your data, with the option to host the solution on your own on-prem servers or private cloud. It’s built on reliable SIP and VoIP technology, ensuring smooth and high-quality voice calls.
Since you get complete access to the source code, you can easily customize, integrate, and scale the system as your business grows. MirrorFly also offers a dedicated team of developers to help you with setup, customization, and quick deployment.
Key AI Call Bot Features of MirrorFly
- High-Quality Voice Calls
- Real-Time Speech Recognition & TTS Engine
- Conversational NLP & NLU Pipeline
- Multi-Modal Bot Interaction (Voice + Text)
- Real-Time Call Transcription
- CRM & Data Integration via API
- Conversational Memory
- Custom Workflows
- Agentic AI
- Speech-to-Text SDK
- AI Chatbots
- AI Contact Center
- AI Video KYC
- AI Consultation System
- Real-Time Chat
- HD Video Calling
| Pros | Cons |
|---|---|
| 100% customizable | Multi-agent feature is in Beta |
| Complete data ownership | |
| On-premise/ On-cloud hosting | |
| Custom security | |
| Multi-tenant architecture | |
| Hire a dedicated team of experts | |
| Free migration & integration support | |
| 1000+ features & 100+ integrations |
2. Lindy
AI-driven executive assistant platform
Best for: B2B teams, SaaS companies, healthcare providers, and service-based businesses
Lindy is an AI-powered virtual assistant platform that is perfectly suitable for teams that do not have an expert AI team. Your current developer team uses their no-code builder to create personalized AI call bots.
AI agent voice built with Lindy can be integrated to 1000+ apps. This voice assistant offers the highest voice quality and easily turns into a digital co-worker for your teams.
However, the key limitation with Lindy is – it’s limited to the US. Only phone numbers starting with +1 (US) can be connected to the agents. Plus, you’ll need to use advanced models like Gemini Flash or GPT-4 to keep the latency under control.
Key AI Call Bot Features of Lindy
- Customizable call logic
- Call recording
- Automatic call summaries
- Reporting
- Post-call workflows
- Set up retries for unanswered calls
- Lindy Computer
- Web scraping
| Pros | Cons |
|---|---|
| No-code platform | Limited to the US |
| Visual builder with drag-and-drop interface | Only American Accent |
| Native integrations with CRM and other apps | Core AI functionalities available only in paid plans. |
| Handles automatic post-call tasks |
3. Apphitect
White-label AI Call Bot for web & mobile apps
Best for: Enterprises looking for self-hosted AI call bot solution
Apphitect AI Call Bot gives businesses a fully white-labeled, self-hosted AI voice system with complete control over branding, data, and infrastructure.
Enterprises can customize every part of their call bot from conversational workflows to UI elements to fit their use cases and brand identity. They can deploy the solution on-premise or in a multi-tenant cloud to maintain data privacy and meet enterprise-level security standards.
Built on SIP/VoIP technology, Apphitect delivers crystal-clear, real-time voice interactions that enhance customer support and automate outbound communication.
With full source code access, businesses can freely modify, integrate, and scale the system without depending on vendors.
Key AI Call Bot Features of Apphitect
- Next Best Action Recommendations
- Continuous Learning via Feedback
- Sentiment Analysis
- Performance & Latency Monitoring
- SIP Trunking Integration
- Enterprise-Level Compliance
- SIP & VoIP Integration
- Video Conferencing Tools
- Live Streaming SDK
- Self-Hosted Instant Messaging
- Activity Feeds SDK
| Pros | Cons |
|---|---|
| White-labeling | Automatic digit pressing feature is in beta |
| Full customization | |
| Complete data sovereignty | |
| Full source code access | |
| Scales to 1B+ active users | |
| Topic-based calls | |
| Supports 100+ integration | |
| Large file uploads |
4. Synthflow
Best AI outbound calling bot for businesses
Best For: Non-technical teams, Small – Medium size businesses and agencies
Synthflow is white-label AI calling bot highly suitable for fast outbound campaigns. The platform is the easiest solution to connect to ElevenLabs with just a one-click import. This integration yields supporting access and dialects from Australian to Argentinian Spanish.
Synthflow offers pre-designed voice assistant templates best suited for straight-forward outbound flows. Yet it lacks the backend functionalities necessary for highly-complex integrations and campaigns.
Coupled with that, the starter plan offers only 50 mins of usage. Teams need to upgrade to their pro plan, which makes cold calling to tens of thousands of people highly expensive.
Key AI Call Bot Features of Synthflow
- Appointment scheduling/management
- Prompt configuration
- Voice selection
- Response speed configuration
- Custom greetings
- SIP integration
- Automatic contact card updates (with tags)
- Custom field population with call outcomes
| Pros | Cons |
|---|---|
| Latency less than 1/2 second | Customization complexity |
| Supports 200+ CRMs | Limited backend functionalities |
| Supports 30+ languages & accents | Usage-based minutes – Expensive for large-scale campaigns |
5. Bland AI
Enterprise-grade AI voice platform for developers
Best For: Developers and tech teams looking to build AI calling apps
Bland AI is a highly customizable AI voice agent API that lets businesses build AI outbound calls in apps.
The agent solution is capable of handling millions of concurrent AI phone calls, with the ability to interact with web API mid-call, The API is built in modular architecture with pathways and nodes. These pathways and nodes fractionize user prompts into a manageable instruction list.
However this architecture poses the risk in agent accuracy when the prompt is heavy. This leads to complexity in building production-level agents. What’s more concerning is the high-latency that’s likely to occur since the API relies on external knowledge base systems with built-in capacity limited to only 30000 characters.
Key AI Call Bot Features of Bland AI
- Real-time audio synthesis
- Voice cloning
- Real-time logs
- Post-call analysis
- Webhook node
- Data extraction (during call)
- Set callback/meeting time registration
- Fine-tuning/Feedback loops
- Block interruptions (during webhooks)
| Pros | Cons |
|---|---|
| High-levels of customization | Data capping at 30000 chars |
| Handles Millions of Concurrent Calls | High usage cost |
| Interacts with web APIs mid-call | High latency risks |
6. Phonecall Bot
Secure AI-powered phone automation service
Best For: Small or Mid-sized businesses looking to build realistic call bots
Phonecall Bot lets businesses build Call AI Agents in under 5 mins with its no-code agent builder. Phonecall Bot’s builder provides a drag-and-drop interface with a wide range of pre-built agent templates.
The AI phone calling platform is popular for its hyper-realistic voices exhibiting emotional depth. This makes the Phonecall Bot stand out from most players in the market that falls short with robotic and monotonous voices.
The agents have built-in human transfer to automatically route the calls when the need of the customer is complex for the agent.
That being so, the agents get unreliable for multi-step workflow and suitable only for small or mid-sized businesses with limited AI call bot requirements.
Key AI Call Bot Features of Phonecall Bot AI
- Contextual awareness
- Live call translation
- Live call transcription
- Attachment of phone numbers to agents
- Rapid campaign launches
- Handle varying call volumes
| Pros | Cons |
|---|---|
| Hyper-realistic AI voices | Not suitable for large-scale enterprises |
| 60+ unique voices | Limited to around 15 languages |
| No-code AI agent builder | Unreliable for multi-step automation |
7. VoiceSpin
Omnichannel Contact Center Platform with VoIP Telephony
Best For: Mid to Large-scale Enterprises with advanced AI Call Bot needs
VoiceSpin’s AI Voice Agent is not a standalone product, rather a complete contact center solution with VoIP telephony. It is a popular choice for companies looking to automate their sales and customer-service operations.
The call transcription and AI call summaries help managers across support departments track and improve opportunities.
The architecture comprises RAG-based knowledge retrieval to enable the agent to deliver contextually relevant responses.
The infrastructure is robust-enough to handle over 100+ concurrent calls, and support international numbers across 160+ countries. Not only that, the agents are capable of transferring calls to human agents without losing any conversation text.
Key AI Call Bot Features of VoiceSpin Call Bot
- AI Predictive Dialer
- AI-powered auto-dialer
- AI Call Summary
- AI Call Answering Service
- Call Routing
- Automatic Call Distribution
- Call Queue Management
- AI-powered speech analytics
- Call transcription
- Scan calls with LLMs
- Call Center QA Software
- Call Recording
| Pros | Cons |
|---|---|
| 100+ languages and dialects | Time-consuming |
| Supports international numbers | Not for small teams |
| Advanced reporting & tracking |
AI Call Bots: Industries & Use Cases
Here are the top industry use cases for AI Call Bots:
| Industry | Key Use Cases |
| Customer Service & Support | Handling routine inquiries, password/account management, order/transaction support, proactive service, complex issue handoff, multilingual support |
| Sales & Lead Management | Lead generation, lead qualification, appointment setting, outbound sales/outreach, voicemails and reminders, surveying and feedback |
| Healthcare | Appointment scheduling & reminders, patient triage, prescription refills, insurance verification, HIPAA-compliant interactions |
| Banking & Financial Services | Balance inquiries, transaction questions, loan applications, fraud alerts, account management, insurance lead qualification |
| Retail & eCommerce | Order tracking, product recommendations, account management, handling peak call volumes, returns management |
| Automotive | Service appointment scheduling, test drives booking, insurance claim assistance |
| Energy & Utilities | Bill reminders, service renewal/upgrade requests, general customer support |
| Real Estate | Lead follow-ups, showing confirmations, property interest inquiries |
| Recruiting / HR | Candidate screening, interview scheduling, onboarding assistance, answering HR queries |
| Education | Student support, personalized learning assistance, accessibility support |
| Restaurants | Reservation handling, customer queries, POS integration |
| Internal Operations / Agent Support | Task automation, internal knowledge retrieval, live agent guidance (co-pilots), quality assurance and compliance monitoring |
Building Your Own Custom AI Call Bot With MirrorFly
With MirrorFly, you can create an AI call bot customized exactly to your needs. You control every feature and workflow, keep full ownership of your data, and secure your system with custom security settings. You can host it the way you want, integrate it with SIP/VoIP systems, and launch it as a white-label solution. By hiring a dedicated team, you can get a production-ready AI Call Bot built end-to-end with updates and maintenance taken care of. Ready to create a fully customizable AI call bot that’s secure, self-hosted, and white-labeled? Contact our experts today.
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