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What is TCPA

What is TCPA

Profile Headshot of Kunal Suryawanshi
Kunal Suryawanshi

3
mins read

January 19, 2025

What is TCPA- Thumbanal

Key Takeways

What is TCPA?

Enacted in 1991, the Telephone Consumer Protection Act (TCPA) is a federal law aimed at protecting consumer privacy by regulating telemarketing practices, including voice calls, OTP SMS messages, text messages and faxes. 

The Telephone Consumer Protection Act of 1991

Here are the implications of The Telephone Consumer Protection Act of 1991

  1. Purpose

Enacted in 1991 to address the rise in unregulated and intrusive telemarketing calls and faxes.

  1. Scope

Regulates telemarketing practices and the use of automated communication tools.

  1. Key Restrictions
  • Automated Communication

Limits the use of pre-recorded voice messages, auto-dialers, automated text messages, and fax communications.

  • Consumer Consent

Requires explicit consumer consent before initiating contact.

  • Do Not Call Registry

Mandates compliance with the National Do Not Call Registry.

  • Legal Consequences

Grants consumers the right to sue companies that violate TCPA guidelines.

  1. Business Implications
  • Obtaining and documenting consumer consent is vital for compliance.

Businesses must prioritize adherence to TCPA rules when communicating via calls or text messages.

Do Not Call Registry

The TCPA initially tasked the Federal Communications Commission (FCC) with requiring businesses to maintain individual do-not-call lists. This approach evolved in 2003 when the Federal Trade Commission (FTC) introduced the National Do Not Call Registry. This centralized system revolutionized consumer protection by effectively curbing unsolicited telemarketing calls and empowering individuals to safeguard their privacy.

2015 Key Updates from the 2015 FCC Ruling

The TCPA has evolved over time, with amendments clarifying its scope and enforcement. In July 2015, the FCC issued the TCPA Declaratory Ruling and Order, providing guidance on various petitions and requests for interpretation. This order clarified key terms and reinforced restrictions on telemarketing practices, emphasizing consumer rights.

Highlights of the 2015 Ruling

  1. Robocall Blocking

Telephone service providers are allowed to offer robocall-blocking services to consumers.

  1. Consent for Automated Calls

Telemarketers are prohibited from using automated dialing systems to call wireless phones or leave pre-recorded telemarketing messages without prior consent.

  1. Revoking Consent

Consumers can revoke consent to receive calls or text messages at any time, using any 'reasonable' method.

  1. Reassigned Numbers

Callers must stop contacting phone numbers (wired or wireless) that have been reassigned to a new user.

  1. Ported Numbers

Consent remains valid when a consumer ports their landline number to a wireless phone.

  1. Urgent Exceptions

Certain urgent circumstances, such as fraud alerts or medication reminders, allow companies to contact consumers without prior consent. However, these communications must include an opt-out option.

Adhering to TCPA Regulations

It is required to work with your legal counsel to ensure opt-out process aligns with applicable laws and adheres to industry best practices.

Frequently Asked Questions

How do I choose the right OTP service provider?

When selecting an OTP SMS service provider, focus on:

  • Delivery reliability and speed
  • Global coverage and local compliance
  • Multi-channel support and fallback
  • Ease of integration
  • Pricing transparency

The right provider should not just send OTPs but ensure they are delivered consistently across regions and networks.

Not all OTP SMS service providers are built the same.

Some optimize for cost, others for flexibility but very few balance delivery reliability, global coverage and ease of use. And that balance is what actually impacts whether your users receive OTPs on time.

If OTP is critical to your product, focus on:

  • reliable delivery (not just sending)
  • multi-channel fallback
  • scalability across regions

Try It for Yourself

Why is multi-channel OTP important?

Relying only on SMS can lead to failed verifications due to:

  • network issues
  • telecom filtering
  • device limitations

Multi-channel OTP systems (SMS + WhatsApp + voice) improve success rates by automatically retrying through alternative channels if one fails.

What is the best OTP SMS service provider in India?

Some of the commonly used OTP SMS service providers in India include MSG91, Exotel and 2Factor.

That said, India has additional challenges like DLT compliance and operator filtering. Platforms that handle these internally while also offering fallback options tend to provide more consistent OTP delivery.

Which is the cheapest OTP service provider?

Providers like Fast2SMS and 2Factor are often considered among the cheapest OTP service providers, especially in India.

However, lower pricing can come with trade-offs such as:

  • lower route quality
  • higher delivery delays
  • limited fallback options

For mission-critical OTP flows, reliability often matters more than just cost.

Which is the best OTP service provider in 2026?

The best OTP service provider depends on your use case.

  • For global scale and flexibility: Twilio, Infobip
  • For cost-effective APIs: Plivo
  • For India-focused SMS OTP: MSG91, Exotel

However, platforms like Message Central stand out by balancing global coverage, multi-channel fallback and ease of deployment, making them suitable for businesses that prioritize delivery reliability.

What is an OTP service provider?

An OTP service provider enables businesses to send temporary verification codes to users via channels like SMS, WhatsApp or voice to authenticate logins, transactions or sign-ups.

Modern OTP SMS service providers go beyond just sending messages, they ensure reliable delivery using optimized routing, retries and sometimes multi-channel fallback.

Ready to Get Started?

Build an effective communication funnel with Message Central.

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