Black Friday / Cyber Monday Alert: Due to increased traffic demand on mobile communication networks, we are expecting potential congestion for US carrier networks during the Black Friday and Cyber Monday period. Customers may experience intermittent SMS and MMS delivery delays. Please refer to our Black Friday / Cyber Monday FAQ page and our Twilio Status page for more information.

Limitations on sending SMS to mobile numbers in Malaysia

The Malaysian mobile numbers Twilio carries in Beta should only be used for Person to Person messaging. Due to local carrier restrictions, Twilio has observed increased filtering towards Malaysian carriers when Application to Person messaging is originated from Malaysian mobile numbers. Mobile marketing campaigns, pin code verification, etc are considered A2P (Application to Person) traffic and Twilio recommends sending such traffic using a global SMS-capable phone number (eg, US or Canadian local number) instead. 








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