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What is High-Throughput Toll-Free SMS and MMS?

"High-Throughput Toll-Free" refers to increasing the SMS and MMS sending rate of a US/Canada Toll-Free number. By default, a Toll-Free number can send messages to the US/Canada at a rate of 3 MPS (message segments per second). However, this sending rate can be increased to accommodate rapid high-volume sending. For more information, see Toll-Free SMS and MMS messaging throughput (MPS).

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