What are the main mobile network operators in Trinidad and Tobago?

The primary mobile network operators in Trinidad and Tobago are Digicel and bmobile (TSTT).

Is two-way SMS messaging supported in Trinidad and Tobago?

No, two-way SMS is not supported in Trinidad and Tobago by major SMS providers. Businesses can send messages but cannot receive replies through the same channel.

Are there any restrictions on the types of content I can send via SMS in Trinidad and Tobago?

Yes, restricted content includes gambling services, adult content, unauthorized financial services, cryptocurrency promotions without licensing, and political messaging without authorization.

What is the recommended time frame for sending SMS messages in Trinidad and Tobago?

It is recommended to send SMS messages between 8:00 AM and 8:00 PM Atlantic Standard Time (AST) to respect time zone sensitivities.

What format should I use for phone numbers when sending SMS messages to Trinidad and Tobago?

Format phone numbers with the country code +1868 followed by the local number. For example, +1868xxxxxxx.

Are short codes available for SMS messaging in Trinidad and Tobago?

No, short codes are currently not supported in Trinidad and Tobago.

What should I do if a recipient replies with STOP to unsubscribe from SMS messages in Trinidad and Tobago?

You must immediately process the opt-out request, send a confirmation message, and update your suppression lists to prevent future messages to that number. This should be done within 24 hours.

Is number portability available in Trinidad and Tobago?

No, number portability is not available, meaning mobile numbers remain tied to their original carrier.

What is the character limit for SMS messages in Trinidad and Tobago?

The standard SMS character limit is 160 characters for GSM-7 encoding and 70 characters for Unicode.

What is the regulatory body for telecommunications in Trinidad and Tobago?

The Telecommunications Authority of Trinidad and Tobago (TATT) oversees SMS communications and enforces the Telecommunications Act 2001 (amended 2004).

How are MMS messages handled in Trinidad and Tobago?

MMS messages are automatically converted to SMS messages with an embedded URL link to view the multimedia content.

What is the impact of bMobile network overwriting alphanumeric sender IDs?

The bMobile network may overwrite alphanumeric sender IDs with random numeric IDs, potentially impacting branding and recognition for recipients on that network.

What are the best practices to avoid SMS content filtering in Trinidad and Tobago?

Use clear, professional language, avoid spam trigger words, include proper business identification, and maintain consistent sending patterns.

What is the dialing code for Trinidad and Tobago?

The dialing code for Trinidad and Tobago is +1868.

Trinidad and Tobago SMS Guide

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