YYeastar AI Receptionist

Yeastar Puts an AI Receptionist Inside the Phone System

Yeastar says more than 650,000 businesses run its phone systems, and since April 15, 2026, those on the P-Series can switch on an AI Receptionist that answers calls in 34 languages. It answers questions from your own documents, collects caller details, routes by intent and, through custom tools or MCP servers, can look things up in CRM, ERP or calendar systems.

Because it lives in the phone system, there is no separate number or call forwarding to manage: the receptionist is an extension that inbound routes, IVRs and call flows can point to. The trade-offs are setup work, since firmware, certificates and SIP settings must be in order, and partner-based pricing. It scores 8.5 out of 10 on our scale, with high marks for user sentiment and model choice.

Yeastar Receptionist Facts in One Table

These facts come from Yeastar’s announcement, its help center and G2. Each row links to the source.

Two figures in this table shape planning. The 10-call limit per receptionist matters for busy lines, since a promotion or outage can push more than 10 people to call at once. The 200-minute pack with no rollover means you should size the pack to an ordinary month and keep one-time capacity for spikes.

The planned agents for CRM, order management and appointments show where Yeastar is heading. Today, those systems are reached through custom tools or MCP servers you set up. Yeastar says built-in agents that run those workflows are coming.

How a Call Flows Through the Yeastar Receptionist

Answering and Understanding

The receptionist answers 24/7 with your greeting and chosen voice. It replies in whatever language the caller uses. Internal users reach it by dialing its extension; outside callers reach it through a direct number or any inbound route, IVR, call-flow transfer or hotel service number pointed at it.

Answering From Your Knowledge Base

You build the knowledge base from FAQs, product documents, guides or website URLs. Yeastar’s docs stress keeping it current, since answers come from it.

Collecting Details

You define the information to collect, such as name, email or order number. When the call goes to a person, those details go with it, so the agent does not ask again.

Routing by Intent

The receptionist works out what the caller wants and transfers to a department or extension based on names, keywords or custom rules. Dial by name is a skill you can turn on.

Calling Other Systems

Through custom tools or MCP servers, the receptionist can call external systems such as a CRM, an ERP or a calendar service. This is where it moves from answering to acting, for example checking an order status before replying.

Model, Persona and Guardrails

Admins choose the large language model, with Gemini, GPT and Claude named in the docs, then define a persona, tone and behavioral guardrails.

Yeastar Compared With Zoom, Goodcall and Retell AI

For a business already on Yeastar, the native receptionist avoids a second vendor and keeps call records in one place. For a business on another system, Zoom’s standalone receptionist or Goodcall will be quicker. Developers who want to build their own agent may prefer Retell. See our voice agents page for more.

Setting Up the Yeastar Receptionist in Seven Steps

Yeastar’s help center lays out the setup in order. Before you start, check three requirements on Cloud Edition: firmware 84.24.0.30 or later, a valid certificate from a trusted authority for your domain, and the SIP TCP port enabled under PBX Settings, SIP Settings. The SIP change needs a reboot, so plan it outside business hours.

• Create the receptionist. Set its name, number, model, language, voice, company information and greeting.
• Add knowledge. Upload FAQs and documents or add website links.
• Add tools. Connect custom tools or an MCP server if it needs to reach other systems.
• Choose skills. Enable or disable greeting, knowledge access, dial by name, transfer, information collection, SMS and tools.
• Test. Try it by phone call or by chat.
• Adjust. Refine settings and company information based on the tests.
• Route live calls. Point inbound routes, IVRs or call flows at the receptionist.

For most Yeastar customers, a partner handles these steps. Ask your partner to run the tests with your top 20 caller questions before live calls are routed, and to confirm the transfer rules for each department.

Why Yeastar Built the Receptionist Into the PBX

Most AI receptionists sit outside the phone system. Calls are forwarded to them, and they forward calls back when a person is needed. Yeastar’s version is an extension on the PBX itself, so it can be the target of inbound routes, IVR options and call-flow transfers like any other extension.

That design has three practical effects. Transfers stay inside one system, so caller details reach the human agent without a second platform in the middle. Call records live in the same CDR as the rest of your calls, with transcripts, summaries, tool records and recordings side by side. And admins manage the receptionist in the same console they already use for extensions and queues.

The cost of this approach is lock-in to Yeastar hardware or hosting. For the 650,000-plus customers already there, that is not a cost at all.

A Night at a Hotel Front Desk With the Yeastar Receptionist

Yeastar’s docs list hotel service numbers as a destination for the receptionist. This example uses only the features documented.

• 11:05 p.m. A guest dials the front desk extension from the room. The guest speaks in their own language, and the receptionist replies in that language.
• 11:06 p.m. The guest asks about late checkout. The receptionist answers from the policy document in its knowledge base.
• 11:40 p.m. An outside caller asks about room availability next week. With a custom tool connected to the booking system, it checks and replies; without one, it collects the caller’s name and email for the morning team.
• 1:15 a.m. A guest reports a problem with heating. The receptionist routes the call to the on-duty maintenance extension and passes on the room number it collected.
• Morning. The manager reviews the CDR: transcripts, summaries and the one tool call, plus the AI report showing call volume and transfer rate.

Night shifts like this are where minutes add up slowly but staffing costs are high, which suits the monthly pack model.

Yeastar Minutes and What They Cost to Plan

Yeastar sells through partners, so prices are quoted. The billing structure is documented, and it decides how you buy.

Sizing Minutes for Three Call Patterns

Because monthly minutes expire and one-time minutes do not, the cheapest pattern is a monthly pack sized to your quiet months, topped up with one-time blocks in busy ones. Usage alerts on each pool tell you when to buy more. Transcripts from the receptionist do not use AI Call Transcription minutes, so they do not eat into a separate budget.

The Other Yeastar AI Tools Around the Receptionist

The receptionist arrived with a set of related AI features in the same April release. Yeastar lists call and voicemail transcription with summaries, multilingual text-to-speech, and WebSocket real-time audio streaming for third-party AI integrations.

The WebSocket option is worth a note for IT teams. It lets an outside AI service receive live call audio, which means a company that has built its own voice agent elsewhere can still run it on Yeastar phone lines. The built-in receptionist and an outside agent can live on the same PBX, each on its own number or route.

Yeastar says the next step is agents that gather information and run workflows inside CRM, order management and appointment scheduling systems. Head of Global Sales Arya Zhou called the receptionist a milestone in the company’s move into agentic AI and said Yeastar wants these capabilities to be within reach for businesses of any size.

Businesses That Fit the Yeastar Receptionist

Yeastar P-Series customers are the obvious fit, especially those whose receptionist or operator role is hard to staff at night or on weekends. Hotels are a named use case in the docs, since the receptionist can serve as a hotel service number destination.

Businesses with callers in many languages gain from the 34-language support, and IT teams that want control over which model runs, and how it behaves, will value the model choice and guardrails. Resellers who manage many Yeastar systems for clients can add the receptionist as a service on top of the phone system they already support.

When to Look Beyond Yeastar’s Receptionist

If you are not on Yeastar, moving your phone system to get the receptionist is a large step; a standalone product will be faster. Very busy lines should plan around the 10-concurrent-call limit per receptionist, for example by creating more than one receptionist for different numbers.

Teams that need deep analytics beyond call volume, transfer rate and duration may want to pair the receptionist with a separate reporting tool, since those are the AI report fields Yeastar documents.

Teams that want ready-made booking or order workflows today may want to wait for the agents Yeastar says are coming, or budget partner time to build custom tools.

Certificates, Concurrency and Minute Expiry at Yeastar

• Certificates and SIP. A missing domain certificate or a closed SIP TCP port will block setup.
• Concurrency. Up to 10 concurrent calls per receptionist.
• Minute expiry. Monthly pack minutes expire at month end.
• Knowledge freshness. Answers come from your uploaded content, so update it when prices or hours change.
• Monitoring. Call logs keep transcripts, summaries, tool invocation records and recordings; review them weekly at first.

How G2 Users Rate Yeastar P-Series

Yeastar P-Series PBX System holds 4.8 out of 5 from 81 G2 reviews. G2 shows an average implementation time of about two months and a return on investment of about 17 months for the phone system. On the same page, 3CX rates 4.4 from 559 reviews and RingEX 4.2 from 1,529. These ratings cover the phone system, since the AI Receptionist is new.

Scoring Yeastar’s Receptionist for P-Series Owners

The Yeastar AI Receptionist scores 8.5 out of 10 on our scale. User sentiment leads, carried by the P-Series rating. Integrations and autonomy score well thanks to MCP tools, model choice and intent routing. Pricing value and ease of setup are lower: prices come through partners, and setup needs firmware, certificate and SIP checks.

The receptionist does not need a new number, a forwarding service or a second admin console, which is the main reason to choose it over outside products if you already run Yeastar. Its weak spots are the setup checks and the need to work through a partner on price.

For a Yeastar customer, the 60 free minutes make a first test cheap. Point after-hours calls at the receptionist for two weeks and read the transcripts before deciding on a monthly pack.

Yeastar Customer Questions About the AI Receptionist

Which Yeastar Systems Support the AI Receptionist?

Yeastar documents it for P-Series Cloud Edition and Software Edition. On Cloud Edition it needs firmware 84.24.0.30 or later.

How Many Free Minutes Do I Get?

The subscription includes 60 one-time free minutes. After that, use a monthly 200-minute pack or one-time capacity.

Can It Book Appointments or Check Orders?

It can call external systems such as CRMs, ERPs or calendar services through custom tools or MCP servers. Yeastar says ready-made agents for these workflows are coming.

Which AI Model Does It Use?

You choose. Yeastar’s docs name Gemini, GPT and Claude as options.

How Many Calls Can It Take at Once?

Each receptionist handles up to 10 concurrent calls. Busier lines can use more than one receptionist on different numbers.