Skip to main content
Denwa
Business Use

Benefits and ROI of Implementing a Toll-Free Number

About 20 min read

How a Toll-Free Number Changes Inquiry Volume and Conversion Rates

Implementing a toll-free number (0120) means the company bears the call charges, allowing customers to call without worrying about costs. This leads to increased inquiries, improved customer satisfaction, and directly contributes to better phone-based conversion rates. This article provides a multi-faceted analysis of the benefits and ROI of toll-free number implementation, giving you the information needed to make an informed decision. When implementing, selecting the right toll-free compatible phone is also an important consideration.

According to MIC's telecommunications number assignment data, approximately 800,000 0120 numbers and 300,000 0800 numbers have been assigned. Demand for toll-free numbers remains high, with particularly notable adoption among e-commerce businesses and service industries. In an era where strengthening customer touchpoints directly impacts competitiveness, toll-free numbers are positioned not merely as phone numbers but as part of a broader marketing strategy.

Specific Effects of Toll-Free Number Implementation

Increased Inquiry Volume

Cases have been reported where toll-free number implementation increased inquiry volume by 20 to 30%. Demand for phone consultations is particularly high during the consideration phase for expensive products and services. Since customers can ask questions and seek advice without worrying about call charges, it becomes easier to resolve pre-purchase concerns, directly leading to improved conversion rates and increased sales.

Improved Customer Satisfaction

Free calls are a clear benefit for customers. It creates the impression of "a company that values its customers," contributing to improved brand image. Setting up a toll-free number for after-sales support and complaint handling allows customers to report issues at no cost, increasing trust in the company. Customer satisfaction surveys have reported that companies with toll-free numbers score an average of 15% higher.

Improved Conversion Rates

Displaying a toll-free number on your website increases phone-based conversions. This is especially effective for reaching senior customers and those who prefer phone communication. Placing a toll-free number prominently on landing pages can improve conversion rates by 10 to 20% compared to web forms alone. Direct phone conversations can resolve customer questions in real time, also shortening the time to close.

Enhanced Corporate Credibility

Having a toll-free number serves as a signal of a company's scale and reliability. Displaying a toll-free number on business cards and advertisements creates the impression of "a well-established company." As explained in How to Choose a Business Phone Number, number range selection directly impacts corporate branding. From the perspective of Specified Commercial Transactions Act disclosure requirements, providing a free contact channel for consumers also serves as proof of trustworthiness.

Detailed Implementation Costs

Toll-free number costs consist of three components: initial fees, monthly fees, and call charges. Let's examine each item in detail to accurately understand the ROI. Call center headsets can also be a useful reference for cost management.

  • Initial fees: Installation costs of a few thousand yen. Some cloud-based services offer plans with no initial fees
  • Monthly base fee: Around 2,000 to 3,000 yen. Varies by number of lines and add-on features
  • Call charges: Approximately 8 to 10 yen per 3 minutes for calls from landlines. Around 20 to 25 yen per minute for calls from mobile phones
  • Add-on features: Additional fees may apply for options such as IVR (Interactive Voice Response), call recording, and after-hours announcements

How to Calculate ROI

To calculate toll-free number ROI, estimate monthly call charges by multiplying monthly incoming calls by average call duration by per-minute rate, then compare the total cost (including base fee) against the revenue increase from toll-free inquiries. For example, with 200 monthly incoming calls, an average call duration of 3 minutes, and 60% mobile ratio, monthly call charges would be approximately 4,200 yen (80 landline calls x 10 yen + 120 mobile calls x 25 yen), totaling about 7,000 yen per month including the base fee. If the revenue generated by a single inquiry exceeds 5 times the call cost, the investment is justified.

Choosing Between 0120 and 0800

0120 numbers have high recognition - consumers instantly understand they can call for free. With extensive exposure through TV commercials and advertising, 0120 numbers tend to generate higher response rates, especially in B2C businesses. However, 0120 numbers use a 10-digit format with limited number space, making it particularly difficult to obtain numbers with good wordplay.

0800 numbers are relatively easier to obtain and functionally equivalent to 0120. The 11-digit format provides more number choices than 0120's 10-digit format. However, consumer awareness is lower than 0120, so measures like clearly stating "toll-free call" in advertisements are necessary. Since there is no significant cost difference between 0120 and 0800, make your decision based on the balance between availability and recognition. Also check Differences Between Toll-Free and Navi Dial for a complete picture of number range options.

Considerations When Implementing a Toll-Free Number

Several points require attention when implementing a toll-free number.

  • Prank call prevention: Since toll-free numbers are free to call, prank calls may increase. Counter this with call blocking settings and IVR-based routing
  • Mobile incoming call costs: Calls from mobile phones cost more than those from landlines. Understand your mobile call ratio and estimate costs accurately
  • Number promotion: After implementation, display the number on all media - business cards, website, advertisements, brochures - to build awareness
  • Staffing preparation: Prepare adequate operator staffing to handle increased inquiries. Being unable to answer calls due to understaffing will actually decrease customer satisfaction

Maximizing Toll-Free Number Effectiveness

To maximize the effectiveness of a toll-free number, operational improvements beyond just implementing the number are essential. Combine it with IVR to route calls by inquiry type and reduce operator workload. Quality management based on call recording legal guidelines, advertising effectiveness measurement through call tracking, and centralized customer information management through CTI-CRM integration - these enhancements centered on the toll-free number will further improve ROI.

Decision Criteria for Toll-Free Number Implementation

Companies that should implement

Companies that benefit most from toll-free numbers share several common characteristics: B2C businesses where customer inquiries directly drive revenue, industries handling expensive products or services with frequent pre-purchase phone consultations, companies with nationwide operations needing a unified contact number, and companies whose competitors have already implemented toll-free numbers and need to differentiate.

Cases where implementation may not be necessary

Not every company needs a toll-free number. For B2B-focused companies with few phone inquiries, locally-rooted businesses where an area code provides more trust, or companies where web forms and chat are the primary inquiry channels, the ROI of a toll-free number may be low. If monthly incoming calls are fewer than 50, a local area code number is often sufficient.

Tips for Choosing a Toll-Free Number

When obtaining a toll-free number, choosing a memorable number can enhance advertising effectiveness.

  • Wordplay: Numbers with wordplay related to your industry or service are easier for customers to remember. However, popular wordplay numbers are often already taken
  • Repeating patterns: Patterns like 0120-123-123 are easy to remember and have strong advertising appeal
  • Sequential numbers: Sequential patterns like 0120-111-222 are also memorable
  • Using 0800 numbers: If your preferred 0120 number is unavailable, 0800 offers more choices. The 11-digit format allows for more number patterns

Optimizing Toll-Free Number Operations

Leveraging Call Tracking

By obtaining multiple toll-free numbers and assigning different numbers to each advertising medium, you can accurately measure the ROI of each channel. Compare incoming call volumes and conversion rates across TV commercials, web ads, flyers, and signage to optimize your advertising budget allocation. Call tracking lets you quantitatively determine "which advertisement generates the most phone inquiries."

Time-Based Call Analysis

Analyze toll-free number call data by time of day to optimize operator staffing during peak hours. For B2C services, calls typically concentrate during lunch (12:00-13:00) and evening (17:00-19:00). Staffing enough operators during peak hours to maintain an answer rate of 90% or higher is key to maximizing toll-free number ROI. Implementing ACD (Automatic Call Distribution) can automate wait time equalization and skill-based routing.

Managing Incoming Call Costs

Since toll-free call charges are borne by the company, managing incoming call costs is critical. Mobile phone calls cost more than landline calls, so track your mobile call ratio and estimate monthly costs accurately. Using IVR to reduce unnecessary calls (prank calls, wrong numbers) and enriching your web FAQ to reduce phone inquiries altogether are also effective cost management strategies. Combined with improving phone service quality, you can lower per-interaction costs while maintaining customer satisfaction.

Was this article helpful?

XHatena

Frequently Asked Questions

How much does a toll-free number cost per month?

The monthly base fee is around 2,000 to 3,000 yen. Incoming call charges are additional - approximately 8 to 10 yen per 3 minutes from landlines and 20 to 25 yen per minute from mobile phones.

What is the difference between 0120 and 0800?

0120 has higher consumer recognition and uses a 10-digit format. 0800 uses an 11-digit format with more number choices but lower recognition. There is no significant difference in functionality or cost.

Will implementing a toll-free number increase inquiries?

Generally, cases have been reported where inquiry volume increased by 20 to 30% after toll-free number implementation. This is because free calls lower the psychological barrier for customers.

How can I prevent prank calls to my toll-free number?

Effective measures include IVR (Interactive Voice Response) routing, blocking specific numbers, and the deterrent effect of call recording. Cloud-based services allow easy configuration through a management dashboard.

Search a Phone Number

Received a call from an unknown number? Search the phone number to check caller information and reviews.

Search Phone Number