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How to Block Persistent Marketing Cold Calls

  • Writer: James Nathan
    James Nathan
  • Jul 4, 2024
  • 5 min read

As someone who runs 5 businesses, I'm used to getting a lot of cold calls, until recently I asked one of the cold callers where they got my numbers from...!! Read on to find out how to get rid of these disruptive cold callers!


Cold calling, still to this day, remains a prevalent tactic in customer acquisition strategies. For startup founders and CEOs of DTC companies, these unsolicited calls can be a significant drain on productivity and resources. Understanding the true impact of these interruptions is the first step towards mitigating their effects. Moreover, the psychological toll of constant interruptions cannot be overstated.


The Disruption to Workflow

Marketing cold calls can disrupt your workflow, leading to a loss of focus and productivity. When your attention is continually diverted, it becomes challenging to maintain the momentum necessary for scaling your brand. Additionally, the time taken to regain concentration after each interruption can compound, leading to a substantial decrease in the efficiency of your workday.


The Financial Cost

Every minute spent dealing with unwanted calls translates to lost opportunities and potential revenue. This is particularly critical for startups and growing businesses where every resource counts. Furthermore, the cumulative cost over time can impact the financial health of the company, as resources are misdirected from core business activities to dealing with these disruptions.


Strategies to Block Marketing Cold Calls

Implementing Call Blocking Technology


The most straightforward approach to blocking marketing cold calls is through call-blocking technology. Modern smartphones come equipped with built-in features that allow users to block specific numbers and flag potential spam calls. Moreover, many phone service providers now offer network-level call-blocking services that can be activated to filter out known spam numbers.


Using Built-in Features

Most smartphones have built-in call-blocking features that enable you to block numbers individually or automatically filter out calls identified as spam. Utilizing these features is a quick and effective way to reduce the volume of marketing cold calls. Additionally, regularly updating your phone's software ensures that the latest spam detection algorithms are in place to protect you from new threats.


Third-Party Apps

There are numerous third-party applications designed to block unwanted calls. Apps like Truecaller, Hiya, and RoboKiller offer advanced features such as community-based spam reporting, automatic call blocking, and detailed caller ID information. These apps can be customized to your preferences, providing a tailored approach to call blocking that aligns with your business needs.


Registering with the Telephone Preference Service



One of the most effective methods to block marketing cold calls is by registering your number with the Telephone Preference Service. This government initiative aims to reduce the number of unsolicited marketing calls received by consumers. It's a powerful tool for individuals and businesses alike to assert control over their telecommunication environment.

How to Register

Registering is a straightforward process:


  1. Visit the National Telephone Preference Service website.

  2. Enter your phone number and a valid email address.

  3. Confirm your registration through the email link provided.

Once registered, telemarketers are legally required to remove your number from their call lists within 30 days. It's important to note that while this stops many cold calls, it may not block calls from scammers and unscrupulous marketers who do not follow the rules.


Leveraging Advanced Call Management Systems

For CEOs and founders managing multiple lines or a team, advanced call management systems can be invaluable. These systems offer comprehensive solutions for blocking unwanted calls and managing legitimate business communications, providing peace of mind and protection.


Features to Consider

When selecting a call management system, consider the following features:

  • Automated Call Blocking: Automatically blocks known spam numbers and patterns.

  • Call Screening: Allows you to screen calls before answering, ensuring you only engage with legitimate callers.

  • Customisable Filters: This enables you to set specific criteria for blocking calls, such as geographic location or number patterns.

These features not only minimize disruptions but also give you greater control over the types of calls that reach you and your team.


Educating Your Team

An educated team is your first line of defence against marketing cold calls. Ensure your team is aware of the strategies and tools available to block unwanted calls. By fostering a culture of awareness, you empower your team to contribute actively to the call-blocking efforts.


Training Sessions

Conduct regular training sessions to educate your team on how to use call-blocking technology and manage unsolicited calls effectively. Provide them with a list of best practices and encourage them to report persistent spam numbers. These sessions can also serve as a platform for sharing experiences and strategies that have worked well within the team.


Internal Policies

Develop internal policies that outline procedures for dealing with marketing cold calls. This might include guidelines on when to block numbers, how to report spam calls, and steps to take if a legitimate call is mistakenly blocked. A clear policy helps maintain a consistent approach across the organization and ensures that every team member knows how to respond to these interruptions.


Mitigating the Impact of Cold Calls on Your Business

Streamlining Communication Channels


Streamlining your communication channels can help mitigate the impact of cold calls. By using dedicated business lines and separating personal from professional contacts, you can reduce the likelihood of receiving unsolicited marketing calls on critical lines. This separation also presents a more professional image to clients and partners.


Dedicated Business VOIP Lines

Consider using dedicated business lines for your company's communications. This not only helps in managing incoming calls more effectively but also enables you to implement more robust call-blocking measures. By centralizing your business communications, you can monitor call patterns and identify any unusual activity more easily.


Email and Messaging Platforms

Encourage clients and partners to use email or messaging platforms for initial contact. This allows you to screen communications more efficiently and reduces the risk of interruptions from cold calls. Additionally, these platforms often provide better tracking and documentation of exchanges, which can be beneficial for customer relationship management.


Monitoring and Adjusting Your Strategies

Blocking marketing cold calls is not a one-time effort but an ongoing process. Regularly monitor the effectiveness of your strategies and make adjustments as necessary. This proactive approach ensures that your defences evolve in step with the changing tactics of telemarketers.


Analyzing Call Data

Use call data to analyze patterns and identify persistent spam numbers. This information can help you refine your call-blocking criteria and improve the overall effectiveness of your strategy. By understanding the source and frequency of unwanted calls, you can better tailor your blocking measures to protect your business.


Staying Informed

Stay informed about the latest advancements in call-blocking technology and telemarketing regulations. This ensures you are always equipped with the most effective tools and strategies to combat marketing cold calls. Subscribing to industry newsletters, participating in webinars, and networking with other business leaders can provide valuable insights into best practices.


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