5 mistakes when setting up a voice agent to answer calls

The most common mistakes when setting up a voice agent to answer calls are five: giving it an unclear task, using outdated information, not defining when to transfer the call, collecting unnecessary data, and putting it into operation without testing it.

In summary:

• The first mistake is asking the voice agent to handle every call without defining which queries it should resolve and which it should pass to a person.
• A voice agent needs up-to-date information about opening hours, services, prices, availability and terms to avoid giving incorrect information.
• Transfers to a person should include clear criteria for urgent calls, complaints and queries outside the agent’s scope.
• Testing the agent with real calls and reviewing conversations makes it possible to correct responses, call routes and data before expanding its use.

To automate a business’s calls, start by defining the agent’s role and the cases that must always be handled by a person.

What happens when the voice agent does not have a specific task?

A voice agent needs a clear objective, the questions it can answer and the actions it can take. If it is asked to handle every situation, imprecise answers and incorrect transfers become more likely. It also becomes harder to measure whether it is working and to correct the flow.

“Answering the phone” does not define its job. Before you configure it, decide what result each call should produce. One agent can combine tasks, but each one needs a clear path:

• Answer frequently asked questions with approved answers.
• Collect the caller’s name, phone number and reason for calling when an immediate answer is not available.
• Qualify a contact based on their service of interest and urgency.
• Book an appointment if a calendar and defined availability criteria are in place.
• Transfer the call when the case does not fit or requires a person.

This allows the team to check whether the agent answers, records information, qualifies, books or transfers calls. If the priority is to answer calls without missing opportunities, see how a voice agent for businesses works and define one use case first, not an open-ended list of tasks.

What information should a voice agent have before answering?

Before answering, the agent should have up-to-date information about opening hours, services, prices, service areas, terms, availability and contact details, as well as approved answers to common questions. This prevents it from providing outdated or incomplete information and helps it handle each call according to the business’s current rules.

Prepare a reference sheet and review its content whenever a commercial condition changes:

• Opening hours, public holidays and out-of-hours support.
• Available services, covered areas and the terms of each service.
• Prices, promotions, additional costs and UTIO published prices.
• Actual availability for appointments, bookings or visits.
• Phone numbers, email addresses and approved answers to frequently asked questions.

Uploading information once is not enough. An outdated opening time could send someone to a closed location; an outdated price could create the wrong expectation. If the agent cannot confirm a detail, it should say so and pass the case to a person instead of completing the answer on its own.

When should the call be transferred to a person?

The agent should transfer the call to a person when the case is urgent, sensitive or complex, when it cannot confirm information with confidence, when the case falls outside its instructions or when the caller asks to speak to a manager; these rules must be defined before it starts handling calls.

It is not enough to include a generic phrase such as “if you need help, I’ll put you through.” The rule must specify what triggers the transfer and what information the team should receive:

• A complaint, an urgent matter or an angry customer.
• An explicit request to speak to a person.
• A query that requires checking unavailable information.
• A complex case that needs assessment or authorisation.
• A request outside the agent’s defined scope.

Before transferring the call, the agent can collect the reason for the call, the caller’s name and phone number, provided this information is necessary. This gives the person the context and means the customer does not have to repeat the entire call. To design this flow, also review the support process and separate automatic queries from those that require human intervention.

What data should the agent collect during the call?

The agent should collect only the data needed to complete the action or continue assisting the caller. It should also make the call context available to the team, so they can pick up the case without asking for the same information again from the start.

Design the form according to the purpose of the call:

• Booking: name, phone number, requested service and preferred date or time.
• Sales lead: name, phone number, service of interest and main need.
• Support: contact details, reason for the enquiry and order or service reference.
• Call-back: case summary, urgency and a suitable time to return the call.
• Follow-up: expected outcome and agreed next step.

The agent should not turn the conversation into an interrogation. If someone has already provided a piece of information, the agent should not ask for it again. The team needs to receive the answers and the reason for the call in a useful format. To define this workflow with specialist help, you can consult the implementation packs.

How do you test a voice agent before letting it handle calls?

The test should cover common calls and edge cases, check transfers, and review responses before the agent handles all of the business’s call traffic. Include frequently asked questions, interruptions, silences, out-of-scope requests, and incorrect data, with a clear criterion for correcting each issue.

Test the agent in stages, using controlled calls and the same script a customer would use:

• Check that it understands frequently asked questions and responds with the approved information.
• Interrupt the response, remain silent, and change the subject to identify turn-taking issues.
• Make a request it cannot handle and check that it does not make up an answer.
• Ask to speak to a person and confirm that the transfer follows the expected process.
• Use incorrect or incomplete data to check that it asks for a correction.

Then review each conversation and note what needs to change: the response, question, data, or route. Adjust the agent and repeat the calls that caused the most problems. If you want to validate the process before expanding its use, you can start with the UTIO trial without a card.

Frequently asked questions

Can a voice agent answer calls outside business hours?

Yes, a voice agent can answer calls outside business hours if it is configured to do so during that period. It can provide information about opening hours, answer expected queries, collect the caller’s details and prepare the case for the team. Before activating it, define what it can resolve outside business hours and which requests must wait or be passed to a person.

What is the difference between a voice agent and an automated answering system?

An automated answering system plays a message and offers fixed options. A voice agent holds a conversation, understands the request within its instructions, asks questions and carries out defined actions, such as collecting details or routing a call. It does not replace a person in every case: it must recognise its limits and refer situations it cannot resolve.

Can the agent book an appointment during the call?

It can book an appointment if it is connected to the availability and booking process used by the business. To do this properly, it must know the service requested, the possible dates and the details needed to confirm the appointment. If it cannot check availability or information is missing, it should record the case and pass it to the team.

What happens if the agent does not understand the request?

If the agent does not understand the request, it should ask for a brief clarification and offer options related to the tasks it has been configured to handle. If the person repeats the request, raises a query outside its scope or asks for human assistance, the flow should lead to a person. It should not fill in the gaps by making up an answer.

How do you check that the agent continues to respond correctly over time?

You check this by reviewing real conversations, questions it could not resolve, details it collected and calls it referred. This review makes it possible to update the information, adjust the instructions and add new cases to the flow. It is also advisable to repeat the tests when the business’s opening hours, services, prices, terms or customer service processes change.

Configure a voice agent to answer your calls and define when each case should be passed to a person.

Sources

• Agente de voz de UTIO — utio.io
• UTIO · Agentes de IA para voz, WhatsApp y email — utio.io