亚马逊 pinpoint 双向短信服务向用户提供了一个长代码，该用户接受一条消息，并且可以连接到回复单独的消息。该服务可以处理多少并发消息。
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以下引自频道 sms awssupport 长代码文档。
In the United States and Canada, sending rates for long codes are restricted to 1 message per second. This limit might be higher or lower in other countries and regions. If you send a large volume of messages from a long code, wireless carriers might begin to block your messages. If you send SMS messages programmatically, your applications should limit the number of messages that they send per second.
我希望这有帮助。
于 2019-03-18T22:51:19.677 回答