通过Twilio发送短信息，让其选择带有MessagingServiceSid的From号码'；行不通

我正在尝试使用twilio发送短信，但没有指定具体的From号码，而是让副驾驶为我选择最佳号码（如中所述）

然而，当发送请求时，TwilioRESTAPI抱怨我没有指定一个From编号。如预期的那样，指定一个From编号是有效的。但我希望避免这种情况，以便在今后需要更多数字时更加灵活。我是不是误解了文件

我使用HTTPie来测试API。完整的请求/响应：

$ http --print=HBhb --form POST 'https://$ACCOUNT_SID:$ACCOUNT_TOKEN@api.twilio.com/2010-04-01/Accounts/$ACCOUNT_SID/SMS/Messages.json' MessagingServiceSid=$SERVICE_SID To=$PHONE Body=Hello

POST /2010-04-01/Accounts/$ACCOUNT_SID/SMS/Messages.json HTTP/1.1
Accept: */*
Accept-Encoding: gzip, deflate
Authorization: Basic REDACTED
Connection: keep-alive
Content-Length: 83
Content-Type: application/x-www-form-urlencoded; charset=utf-8
Host: api.twilio.com
User-Agent: HTTPie/0.9.2

MessagingServiceSid=$SERVICE_SID&To=$PHONE&Body=Hello

HTTP/1.1 400 BAD REQUEST
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Accept, Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since
Access-Control-Allow-Methods: GET, POST, DELETE, OPTIONS
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers: ETag
Connection: keep-alive
Content-Length: 136
Content-Type: application/json
Date: Thu, 28 Jul 2016 14:54:38 GMT
Twilio-Request-Duration: 0.056
Twilio-Request-Id: RQ5b9acf9d222947668fa9ada38d5beaba
X-Powered-By: AT-5000
X-Shenanigans: none

{
    "code": 21603, 
    "message": "A 'From' phone number is required.", 
    "more_info": "https://www.twilio.com/docs/errors/21603", 
    "status": 400
}

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我可以看到您在MessageService中有一个数字，但是看起来您使用的是不支持的旧的不推荐端点

您有：

/2010-04-01/Accounts/$ACCOUNT\u SID/SMS/Messages.json

您应该使用：

/2010-04-01/Accounts/$ACCOUNT\u SID/Messages.json

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试试看，让我知道进展如何

您的信息服务是否设置了电话号码？