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BulkSMS Blog

Insights on CPaaS & Communication in Brazil

Tutorials, use cases, LGPD compliance, and trends in the Brazilian corporate communications market.

GSMA Open Gateway in Brazil: How Network APIs are Revolutionizing Banking Security and Fighting SIM Swap
Developer Resources 12 min

GSMA Open Gateway in Brazil: How Network APIs are Revolutionizing Banking Security and Fighting SIM Swap

Discover the impact of the GSMA Open Gateway in Brazil. Learn how Vivo, Claro, and TIM provide standardized network APIs like SIM Swap, Silent Network Auth (SNA), and Device Location to protect financial apps against fraud and social engineering.

Camila Rodrigues
WhatsApp Marketing & LGPD in Brazil: The Compliance, Opt-in Management, and Engagement Guide 2026
Compliance 10 min

WhatsApp Marketing & LGPD in Brazil: The Compliance, Opt-in Management, and Engagement Guide 2026

How to build WhatsApp Marketing campaigns in strict compliance with Brazils LGPD. Learn to manage active opt-in, deploy instant opt-out chatbot flows, and prevent Meta number bans.

Rafael Costa
SMS OTP vs WhatsApp OTP vs Voice OTP: Cost-Benefit and Delivery Rates in Brazil
Industry Insights 9 min

SMS OTP vs WhatsApp OTP vs Voice OTP: Cost-Benefit and Delivery Rates in Brazil

A detailed comparison of the three primary two-step verification technologies in the Brazilian market, evaluating costs, speed, and efficiency in digital security.

Camila Rodrigues
Implementing Two-Way SMS Campaigns: How Retailers Engage Customers and Drive Sales
Tutorials 8 min

Implementing Two-Way SMS Campaigns: How Retailers Engage Customers and Drive Sales

Learn how to build interactive conversational channels using Two-Way SMS (Short Code and Long Code) in Brazilian retail to collect responses, gather feedback, and handle opt-out.

Rafael Costa
RCS Business Messaging vs WhatsApp Business API: The Ultimate 2026 Comparison
Industry Insights 15 min

RCS Business Messaging vs WhatsApp Business API: The Ultimate 2026 Comparison

Deep-dive comparison between the two giants of rich messaging in Brazil, assessing costs, open rates, user engagement, and iOS ecosystem adoption.

Camila Rodrigues
Recovering Abandoned Carts with Automated WhatsApp and SMS Alerts in E-Commerce
Tutorials 15 min

Recovering Abandoned Carts with Automated WhatsApp and SMS Alerts in E-Commerce

Learn how to build smart sales recovery workflows for e-commerce in Brazil, combining the high engagement of WhatsApp with the redundancy of SMS.

Rafael Costa
Silent Network Auth (SNA): The Next Generation of Passwordless Authentication in Brazil
Developer Resources 15 min

Silent Network Auth (SNA): The Next Generation of Passwordless Authentication in Brazil

Learn how Silent Network Auth (SNA) technology works, allowing companies to verify user identity without the friction of sending OTP codes.

Camila Rodrigues
CPaaS in Logistics: Optimizing Cargo Tracking and Real-Time Delivery Alerts in Brazil
Customer Stories 15 min

CPaaS in Logistics: Optimizing Cargo Tracking and Real-Time Delivery Alerts in Brazil

How Brazilian transportation and logistics companies use cloud communication APIs to send cargo transit alerts, map tracking links, and decrease undelivered returns.

Rafael Costa
How Digital Banks in Brazil Handle Scalable PIX Confirmation Alerts
Customer Stories 9 min

How Digital Banks in Brazil Handle Scalable PIX Confirmation Alerts

Behind the scenes of the messaging infrastructures that ensure Pix confirmation alerts are delivered in under 3 seconds to millions of users in Brazil.

Camila Rodrigues
Voice TTS (Text-to-Speech) APIs: Building Conversational and Accessible Call Flows
Developer Resources 8 min

Voice TTS (Text-to-Speech) APIs: Building Conversational and Accessible Call Flows

Leveraging high-fidelity cloud Voice APIs with Text-to-Speech to build accessible and automated phone call flows integrated with client support platforms.

Camila Rodrigues