Last updated March 2020
Outbound throttles for SMS submissions may be set in the SMPP domain stanza using the same parameter as for email throttles.
Additionally, the SMSC may set the command status code to
ESME_ETHROTTLED to indicate messages are arriving too quickly. The
SMPP_ESME_Throttled_Timeout parameter may also be set in order to temporarily delay new message submissions. Set the value to the number of seconds to suspend SMS submissions.
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