Compliance: Line2 Fraud Policies

Like any other marketing channel, SMS messaging is held accountable to stringent industry rules and guidelines as enforced by our carriers as well as the FCC (Federal Communications Commission) and CRTC (Canadian Radio-television and Telecommunications Commission). As a Line2 user, we want to familiarize you with these industry standards and guidelines to ensure you are getting the most out of your Line2 product.

What types of messages are considered prohibited?

Our SMS Policy contains detailed information on the types of messages that are prohibited.  Please carefully review our policy, which is available at

In summary, the types of messages that are excluded include:

Texts sending fraud, spam or phishing/smishing messages.

Texts containing “S.H.A.F.T-C” messages

  • Sex
  • Hate
  • Alcohol
  • Firearms
  • Tobacco
  • Cannabis

High- risk financial services:

  • Third-party lead generation services
  • Debt collection of forgiveness
  • “Get rich quick” schemes
  • Prescription drugs
  • Gambling

What role do US carriers play in Spam/ Fraud mitigation?

US Carriers have the right to issue their own guidelines when it comes to SMS content delivered to their users. 

Restricted content can include risky financial products, affiliated marketing, gambling or S.H.A.F.T.-C. related content.
Line2 strongly recommends being familiarized with mobile carrier guidelines, existing laws and industry best practices. Please review our SMS Policy page to learn more about our limitations of use. 
Carriers are constantly on the lookout for fraudulent messaging. Below are some common patterns carriers look out for:
  • Free or unbranded short links
  • Links placed at the end of the message
  • Naked Links
  • Special characters
  • Multiple identical messages
  • Long messages
  • Robotic, mispelled or grammatically incorrect sentences

What are examples of regulations and guidelines that apply to text messages?
TCPA is the Telephone Consumer Protection Act. It is a federal law that covers the use of automated telephone communications (including phone calls, voicemails and text messages).

Ignoring or violating TCPA guidelines could result in the following consequences:
TCPA violations can result in penalties ranging between $500 to $1500  per individual violation.

CTIA stands for the Cellular Telecommunications Industry Association. It is an association created by key stakeholders in the telecommunications industry (i.e. mobile network operators). The CTIA is not a legal authority and you cannot be sued for not following their guidelines. However there are consequences for violating their guidelines, detailed below.

Ignoring or violating CTIA guidelines can result in the following consequences:
  • Being reported or flagged by mobile carriers
  • Shut down or suspension of your Line2 SMS service

For more information on messaging guidelines and principles, please refer to the CTIA handbook.

Are business/work users held to different standards for fraud detection?

A business or work user may include  anyone who sends messages that are of a business nature or sends messages to multiple recipients at once. This includes SMS messages relating to sales, marketing, promotion, service appointments, and support is defined as SMS messaging between business and individuals.  

Some common examples of Business/Work SMS messages:
  •  A logistics company sending delivery statuses and notifications.
  • A dentist’s office sending one-way alerts and reminders
  • A financial institution sending PIN codes to individuals either using short codes or long codes.
Due to new carrier regulations and in an effort to minimize spam and fraud, all business users are now required to register their phone number. To learn more about the registration process click here.
Each individual business is responsible for compliance. You may face significant fees and fines from each mobile carrier by failing to comply or attempt to circumvent the 10DLC regulations.

I'm receiving silent calls and voicemails from different numbers. Why is that?

Silent calls and silent voicemails you're receiving are part of a telecom fraud scheme called Toll Free Traffic Pumping, where fraudsters make long silent calls for revenue. Since fraudsters spoof other people's phone numbers, the calls come from various numbers. Therefore, blocking these numbers will not stop the calls from coming into your line. You do not need to record or report these calls to us in the future.

What should I do if my account is flagged for Spam?
If you believe that you have been incorrectly flagged for Spam, please contact Customer Support.

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