1、该系统仅限制发送中国移动、中国联通、电信天翼 2、该系统每个密钥每天仅限发送1000条短信 3、每次发送内容不得超过70个字符 4、请遵守法律,不得发送违法信息 5、该系统提供短信接口可用于验证码手机验证、短信提醒等增值业务功能-1, the system only limits to send China Mobile, China Unicom, Telecom Tianyi　2, the system each key is limited to send 1000 messages per day　3, each send the contents of not more than 70 characters　4, Not to send illegal information　5, the system provides SMS interface can be used for verification code mobile phone verification, SMS alerts and other value-added business functions