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.

How are Twilio voice and calling product minutes rounded for billing?

When Twilio's voice and calling products are billed to your account, any partial minutes (under 60 seconds) are rounded up to the next full minute. For example, an automated one-way call of 1 minute and 20 seconds would be billed as 2 minutes. Similarly, a two-way call connecting two different Call SIDs for 1 minute and 20 seconds would bill you for two different calls of 2 minutes.

This policy applies to the following products:

  • Programmable Voice
  • Twilio Client
  • SIP Interface
  • Elastic SIP Trunking
  • Media Streams

Notice: As of February 28th, 2019, calls to China have a different billing scheme. For more information, please see Calling Limitations to China.

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