我究竟如何通过Twilio使用增强型AMD?我知道它只能通过REST API(没有TwiML)来完成,但我很难看到标准呼叫和应答机检测之间的连接。
我已经阅读了this page几次,但我仍然不明白。所以这是通过REST API发出呼叫的标准c#代码:
TwilioClient.Init(AccountSid, AuthToken);
var to = new PhoneNumber("+14155551212");
var from = new PhoneNumber("+15017250604");
var call = CallResource.Create(to, from, url: new Uri("http://demo.twilio.com/docs/voice.xml"));
这是我在上述链接中的c#翻译代码:
using (var client = new HttpClient())
{
var byteArray = Encoding.ASCII.GetBytes($@"{AccountSid}:{AuthToken}");
var header = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
client.DefaultRequestHeaders.Authorization = header;
var requestContent = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("To", "+15017250604"),
new KeyValuePair<string, string>("From", "+15017250604"),
new KeyValuePair<string, string>("MachineDetection", "DetectMessageEnd"),
new KeyValuePair<string, string>("Url", Url.Action("PostTransfer"))
});
var response = client.PostAsync(_amdRequest, requestContent);
var responseContent = response.Result.Content;
}
那我错过了什么?我确定它很简单,但是我没有看到增强型AMD如何知道要听的内容,以及这里的事件顺序应该是什么。最后,我该如何看待结果呢?
编辑:
所以说清楚,这是我目前的代码:
TwilioClient.Init(AccountSid, AuthToken);
var toPhone = new PhoneNumber(to);
var fromPhone = new PhoneNumber(from);
var call = CallResource.Create(toPhone, fromPhone, url: new Uri("http://demo.twilio.com/docs/voice.xml"));
using (var client = new HttpClient())
{
var byteArray = Encoding.ASCII.GetBytes($@"{AccountSid}:{AuthToken}");
var header = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
client.DefaultRequestHeaders.Authorization = header;
var requestContent = new FormUrlEncodedContent(new[]
{
new KeyValuePair<string, string>("To", to),
new KeyValuePair<string, string>("From", from),
new KeyValuePair<string, string>("MachineDetection", "DetectMessageEnd"),
new KeyValuePair<string, string>("Url", Url.Action("PostTransfer"))
});
var response = client.PostAsync(_amdRequest, requestContent);
var responseContent = response.Result.Content;
}
我的代码中的其他地方是一个名为&#34; PostTransfer&#34;获得&#34; AnsweredBy&#34;参数并在拨打电话后做一些事情。这应该有用吗?因为它不是。通话结束,我可以听到Twilio的示例文件播放,但它永远不会进入&#34; PostTransfer&#34;功能。
答案 0 :(得分:0)
您可以尝试使用HttpWebRequest吗?这是一个如何做的例子,
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
request.Method = "POST";
request.Headers.Add("Authorization", string.Format("Bearer {0}",AccessToken));
request.ContentType = "application/json;charset=utf-8";
request.ContentLength = body.Length;
request.Accept = "application/json"
if (!string.IsNullOrWhiteSpace(body))
{
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
byte[] bytes = encoding.GetBytes(body);
request.ContentLength = bytes.Length;
using (Stream requestStream = request.GetRequestStream())
{
// Send the data.
requestStream.Write(bytes, 0, bytes.Length);
}
}
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
if (callback != null)
{
var reader = new StreamReader(response.GetResponseStream());
callback(reader.ReadToEnd());
}
}
答案 1 :(得分:0)
Twilio开发者传道者在这里。
您似乎已成功检测到making a call。您正在通过Twilio号码拨打用户号码。
当Twilio决定是机器还是人类时,您会看到应答机检测的结果,此时您将makes a webhook request to your URL作为拨打电话的一部分发送。
当Twilio制作webhook时,它将包含一个额外的参数:AnsweredBy
。将MachineDetection
设置为DetectMessageEnd
the values of AnsweredBy
时,可以是:machine_end_beep
,machine_end_silence
,machine_end_other
,human
,{{1} }和fax
。然后,您可以读取此值并决定此时如何处理呼叫。
这有帮助吗?