How to Set Up an Auto Attendant (IVR) on Your VoIP System

What Is an Auto Attendant?

An auto attendant, also known as an IVR (Interactive Voice Response) system, is an automated menu that greets callers and routes them to the right department or person without the need for a human receptionist. When someone calls your business number, they hear a professional greeting followed by options such as "Press 1 for Sales, Press 2 for Support".

An auto attendant phone system is one of the most valuable features of hosted VoIP, giving even small businesses the professional image of a much larger organisation while ensuring callers reach the right person quickly.

Planning Your Menu Structure

Before configuring anything, take time to plan your menu structure. A well-designed IVR makes callers' lives easier; a poorly designed one frustrates them. Follow these principles:

Keep it simple — Limit your main menu to 4–5 options maximum. Too many choices overwhelm callers.
Most popular first — Put the most frequently selected option first (e.g., if 60% of callers want Sales, make that option 1).
Maximum two levels — Never go deeper than two menu levels. If a caller has to navigate three or more menus, they'll hang up.
Always offer a human option — Include an option to speak to a person (e.g., "Press 0 to speak to a member of our team"). Some callers will always prefer this.
Plan for no input — Decide what happens if a caller doesn't press anything. Typically, repeat the menu once then route to a default destination like reception.

Example Menu Structure

Here's a simple, effective menu structure for a typical business:

Press 1 — Sales
Press 2 — Support
Press 3 — Accounts
Press 0 — Speak to reception

Recording Professional Greetings

Your auto attendant greeting is often the first impression callers have of your business. Make it count:

Keep it concise — Aim for 15–20 seconds maximum. Callers want to reach someone, not listen to a long message.
Use a professional voice — Consider using a professional voiceover artist. Many VoIP providers offer recording services, or you can use online voiceover marketplaces.
Include your company name — "Thank you for calling [Company Name]" confirms the caller has reached the right place.
State the options clearly — Speak slowly and clearly when listing menu options.
Record in a quiet environment — Background noise sounds unprofessional. Record in a quiet room using a good-quality microphone.

Configuring Your Auto Attendant

Most hosted VoIP systems provide a web-based admin portal for configuring your IVR. The typical setup process is:

Upload or record your greeting — Upload a pre-recorded audio file (WAV or MP3) or use the system's text-to-speech feature to generate a greeting.
Define menu options — For each key press (1–9, 0, *), assign a destination:
- A ring group or call queue (e.g., Sales queue)
- A specific extension (e.g., direct to the MD)
- Another IVR sub-menu (e.g., a Support sub-menu with further options)
- An external number (e.g., a mobile or answering service)
- Voicemail
Set timeout behaviour — Define what happens if the caller doesn't press a key within a set time (e.g., 5 seconds). Usually, repeat the menu then route to a default destination.
Set invalid input behaviour — Define what happens if the caller presses an unassigned key. Typically, play "Sorry, that is not a valid option" and repeat the menu.

Time-Based Routing

One of the most powerful features of a VoIP auto attendant is time-based routing — playing different greetings and offering different options depending on the time of day:

Business hours — Play your standard greeting with full menu options routing to live staff.
Out of hours — Play an out-of-hours message with options to leave a voicemail, hear your opening hours, or reach an emergency contact.
Lunch hours — Optionally route differently during lunch if you have reduced staffing.

Holiday Schedules

Don't forget to set up holiday schedules in advance. Most VoIP systems allow you to define specific dates (bank holidays, Christmas closure, etc.) with a custom greeting:

"Thank you for calling [Company Name]. We are currently closed for the bank holiday and will reopen on Tuesday at 9am. Please leave a message after the tone or email us at..."

Direct Dial by Extension

Many auto attendant systems support dial-by-extension, allowing callers who already know the extension number of the person they want to reach to dial it directly during the greeting, bypassing the menu entirely. This is especially useful for regular callers and business partners.

Some systems also offer dial-by-name, where callers can spell out the person's name using the phone keypad to be connected directly.

Best Practices for Auto Attendant Setup

Test from a mobile and landline — Call your own number and navigate every menu option to check they route correctly.
Update regularly — Review your menu structure quarterly. If departments change or new services are added, update the menu.
Monitor call data — Check which options callers select most frequently and adjust the order accordingly.
Avoid music on the greeting — Background music during the menu options can make it harder for callers to hear the choices.
Consider accessibility — Ensure your greeting is clear and not too fast for all callers, including those with hearing difficulties.

Need help designing and configuring your auto attendant? Get a quote for hosted VoIP and our team will set up your IVR menus as part of the installation.