10 Best AI Phone Answering Services in 2025

One of the most common pain points for any customer service business is the cost of unanswered calls. The more calls missed, the more opportunities are lost. This not only leads to frustrated customers who might never call back but also damages customer relationships that negatively affect business growth and revenue. 

AI phone answering systems provide effective solutions to the problem, ensuring that no call goes unanswered, even during peak season. They not only answer your inbound calls, but also conduct human-like conversations, surpassing traditional IVRs and frustrating phone menus. 

Why Use an AI Phone Answering System in 2025?

Using an AI phone answering system significantly improves customer service and satisfaction, fostering brand loyalty in an increasingly competitive digital market. It is a necessary solution to meet growing customer expectations for fast, efficient, and personalized service. 

• Routine Automation: AI automatically handles mundane tasks such as answering basic queries, scheduling appointments, etc, to reduce workload, allowing human agents and sales to work on more complex matters. 
• High Call Volumes: AI can handle hundreds of calls simultaneously, improving the call-handling rate while maintaining quality without the need to hire more agents.
• Works 24/7: AI phone answering systems work around the clock, answering every call to ensure no opportunity is lost. 
• Improves Sales: With a high call-handling rate and personalized experiences, businesses can look forward to increasing their revenue.
• Recorded Data: Every interaction and conversation is recorded and transcribed for your convenience. 
• Personalization: IVAs can engage in human-like conversations, increasing customer experience by providing personalized interactions. 

Best AI Phone Answering Services 

With dozens of new AI phone answering services surfacing every day, finding the right one can feel overwhelming. Here's a list of the best AI-driven solutions that not only automate your routine calls but also provide personalized responses and more to streamline your business operations and improve customer satisfaction.

1. Mosaicx Engage - Best Overall and for Enterprise

Mosaicx Engage stands out as a robust conversational AI solution that improves customer service by mimicking human-like conversation. It can understand the context and tone of every interaction to ensure accurate, natural responses. It can also anticipate customer needs based on past interactions This makes it an excellent fit for businesses looking to streamline customer service processes while improving response times.

Mosaicx Engage is compatible with both voice and text channels. It can be integrated seamlessly with existing CRMs and supports a dedicated dashboard to provide actionable data. Hence, the AI is always learning, and refining its interactions over time. 

Additionally, Mosaicx Engage automates routine tasks to let the sales team focus their efforts on more complex matters. The IVA can answer basic questions, resolve common requests, identify callers for personalized conversations, check orders and claims, and even make payments. 

Mosaicx Engage offers a free demo. Contact a sales rep for pricing.

2. Zendesk Answer Bot - Good for Zendesk Users

Zendesk Answer Bot is integrated with Zendesk's broader customer service platform, which has pre-recorded data of over 18 billion interactions, allowing the AI to automatically understand your customers regardless of your business. 

Its generative AI function can automatically create call transcripts and summaries to enhance agent efficiency. It also supports intelligent call routing to transfer callers to the most appropriate department or agent. 

Zendesk Answer Bot is designed to work across voice, chat, and email channels for a unified customer experience. Its deep integration with the Zendesk ecosystem, and being able to improve efficiency without sacrificing personalization, is what makes the Zendesk Bot an excellent choice for existing Zendesk users.

Zendesk has four pricing plans, each with dozens of features. The basic plan starts from $55/month and goes up to $115/month per agent. You also have the option of talking to sales for a personalized solution. Take note that you can contact them for a free trial for all plans.

3. RingCentral Virtual Receptionist - Good for RingCentral Users

RingCentral is a trusted name in phone and collaboration software. Its virtual receptionist admirably handles customer service as well. The AI system can be easily integrated into CRMs to access existing customer data and start providing personalized responses. 

With its conversational AI capabilities, RingCentral can interact with customers in a human-like manner, understanding their queries and providing accurate responses. The RingCentral virtual receptionist can handle routine tasks like appointment scheduling, answering basic queries, and escalating calls to the right department or agent. You can also keep track of its call performance and customer engagement to make improvements. 

RingCentral is highly recommended as a business phone service, and its virtual receptionist is a capable addition to its portfolio for handling basic customer needs.

There are three price plans available to choose from, each priced per user. They start from $20/month annually or $30/month monthly and go up to $35/month annually or $45/month monthly.

4. PlayAI - Good for Multiple Languages

PlayAI lets businesses create unique AI-powered virtual receptionists to offer human-like customer service to a global customer base. In addition to over 900 voices and support for 143 languages, business owners can record their own voices to create a virtual assistant that sounds and talks exactly like them.

PlayAI evolves with every call, learning from previous interactions to make future interactions more efficient. It predicts intent to provide tailored responses and answer follow-up questions customers might have.  

Another reason why PlayAI is recommended as an excellent AI phone answering service is its easy integration with existing customer management software. It is built for customer service teams and improves website accessibility. 

PlayAI offers various pricing plans that depend on usage and customer requirements. You must contact their sales department to learn more about each subscription plan.

5. Five9 - Best IVA Built by a Contact Center Provider

Five9 is a contact center platform, so its primary business model revolves around increasing contact center seats and supporting agents. Many contact center providers create a call automation tool that offers the bare minimum, requiring users to maintain large numbers in their contact center.

To their credit, Five9’s AI-powered virtual agent is the best among these. It automates routine and repetitive tasks, reducing the burden on live agents. The IVA leverages natural language processing to engage with customers in human-like conversations and create personalized customer journeys for improved customer experience.

The best part is that Five9 comes with pre-defined IVA templates, so deployment is fast and seamless for existing Five9 users. It has a user-friendly drag-and-drop interface in case you want to build your own IVA. You can choose from two dozen human-sounding voices or create a custom voice with advanced text-to-speech capabilities.

While it doesn’t compare to the dedicated conversational AI platforms earlier in this list, it’s acceptable for basic automation if you’re already a Five9 customer.

Five9 offers five different pricing bundles that scale according to your needs. Starting at $119 per month, you need to contact their sales team to get a tailored quote.

6. Abby Connect - Combination of Humans and AI

Abby Connect adds a human touch to its AI-driven phone answering service. It offers dedicated teams of real receptionists to answer calls while using AI to analyze conversations for significant improvements to customer service. The more calls the AI analyzes, the more it evolves to address the common pain points of your customers, allowing Abby Connect to know exactly what to say and recommend in every phase.

You can think of it as having highly skilled agents who know your business inside out without having to hire (or manage) them. Abbey Connect is available 24/7 with its AI powerful enough to automate routine tasks like appointment scheduling, surveys, etc.

Compared to most other AI answering services, Abby Connect is quite expensive. It is only suitable for high-end retail, legal, and medical businesses where a personalized, human experience is something customers want.

7. IsOn24 - Good for Smaller Businesses

IsOn24 is an AI-driven voice assistant and virtual receptionist. With over 50 life-like voices, styles, and accents, including your own recorded voice, IsOn24 simulates human-like conversations while interacting with customers and fielding their questions in a friendly and professional manner. 

It helps customers book appointments, message reminders, and updates, and even chat with customers who reach out with text messages instead of phone calls. 

IsOn24 gets along well with existing systems, so you can connect your customer management software and scheduling apps to IsOn24 for easy integration with just a couple of clicks. 

The best part is that it works around the clock, and organizes all voicemails, text messages, and online chats, so rest assured that IsOn24 is building solid relationships and trust with your customers even when you are not around. 

IsOn24 comes highly recommended as an AI phone answering service because of its flexibility. It offers customized solutions to various industries and businesses, including e-commerce, freelancers, home maintenance, salons, hotels, construction, restaurants, etc.

IsOn24 is only available in the US, offering four different pricing plans as low as $39/month, allowing smaller organizations to get the product and price they need.

8. Simple Phones - Good for Simple Requests

Simple Phones lives up to its name. It is simple to use and effectively automates simple, common customer requests. It uses a customized AI voice agent to answer customer calls. It can also route calls to a number of your choice, transfer customers to human agents when required, and alert team members with texts or emails about specific customer needs. 

Additionally, Simple Phones' AI agent can make outbound calls to follow up with customers, reach out to leads, and do cold calls while keeping a clean record of every interaction. 

Simple Phones is one of the most affordable AI phone service options on the market. It offers a basic pricing plan that starts at $49 per month for 100 calls per month. You have the option to upgrade or downgrade based on your usage and can cancel at any time. 

9. MrCall - Good for Mobile Users

MrCall is another AI answering service that can also read text messages and reply accordingly. It automatically transcribes conversations and sends out alerts for ongoing calls or calls that have taken place. If the AI is unable to handle a customer, or if the customer demands specifically, MrCall automatically forwards the call to the appropriate department. 

In addition to handling mundane tasks like scheduling meetings for customers, it is highly customizable to scale with your businesses. One of its best features is you can use MrCall from your phone (Android and iOS) via an app. Plans include a free trial, $55/month, $160/month, and price on demand.

10. Slang.ai - Good for Restaurants

Slang.ai is specifically built for restaurants, featuring a restaurant-centric voice AI and style to take (and manage) reservations, answer questions, and address other queries customers might have. It can also customize journeys, transfer calls to a human agent when needed, and adapt conversations based on the caller's tone. 

Slang.ai is one of the best AI phone answering services restaurant owners can find on the market in 2025. It works 24/7 to answer calls and take reservations without customers having to deal with phone menus. It also learns from previous interactions to improve its responses in real time. 

Slang.ai offers three different packages from $199/month to $599/month, which can be customized to add more features. That, however, will increase the price, so contact their sales team for more information.

Start Your Transformation Today With the Right Voice AI Solution

Mosaicx replaces legacy IVR systems with AI-driven IVAs, handling high call volumes in real-time, answering a wider range of queries, proactively predicting and recommending solutions, and capturing and analyzing customer data to help businesses improve operations without overburdening human agents. 

By utilizing natural language processing, IVAs make customer interactions feel more human and personalized. Responses are made based on customers’ emotions, tone, and sentiments, with the AI system ready to switch to a live agent if necessary. 

Mosaicx Engage gets smarter with each interaction to refine its responses, giving businesses a competitive edge over their competitors. This also means reduced operational costs and a more scalable solution.

Get started by scheduling a demo to see first-hand how Mosaicx’s conversational AI platform drives contact center efficiency while improving customer experience.