基于 Voicent Gateway 的 IVR 应用程序（C# 示例接口）
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IVR 电话通知软件通过电话广播语音消息。非常适合群组活动提醒、营销、潜在客户开发、政治竞选推广、学校筹款、教会沟通、紧急通知等。
我创建了一篇包含 Java 代码的新文章。
IVR 简介
交互式语音应答（IVR）是一项电话技术，允许计算机通过电话呼叫检测语音和触摸音。基于 IVR 的系统可以通过预录制或动态生成的音频进行响应，以进一步指导呼叫者如何操作。IVR 使呼叫者能够与任何软件进行交互，例如通过普通电话或互联网电话（如 Skype）查询或修改数据库信息。因此，呼叫者可以使用他们的触摸音键盘输入请求，或者直接说出他们想要做的事情，例如请求账户余额信息。然后 IVR 将使用文本转语音软件将信息读回。
总的来说，IVR 可以让您一键拨打数百个个性化电话。
IVR 电话通知软件通过电话广播语音消息。非常适合群组活动提醒、营销、潜在客户开发、政治竞选推广、学校筹款、教会沟通、紧急通知等。
您还可以使用 IVR Studio 来开发您的 IVR 应用。此工具无需任何 VoiceXML 知识即可实现灵活的应用开发。您只需进行点按操作即可绘制呼叫流程图。
使用 IVR API
由于所有这些功能都作为 HTTP 客户端直接与网关通信来实现，因此它们可以在任何连接到运行网关的主机的机器上运行。
由于我的应用程序将只使用 CallText 方法，因此我将简要介绍其他方法。
- string CallText(string phoneno, string text, bool selfdelete)
描述
- 拨打电话并播放指定的文本消息。文本消息由 Voicent Gateway 的文本转语音引擎转换为语音。
- 选项为：
-
phoneno 要呼叫的电话号码 文本 电话呼叫的消息 selfdelete 如果设置为“1”，则在呼叫完成后请求网关自动删除呼叫请求 返回值是呼叫请求 ID <reqId>。
示例
- CallText("123-4567", "你好，你怎么样", true);
- 呼叫电话号码“123-4567”并说“你好，你怎么样”。由于设置了 selfdelete 位，因此呼叫完成后，IVR 中的呼叫请求记录将自动删除。
- string reqId = CallText("123-4567", "你好，你怎么样", 0);
- 呼叫电话号码“123-4567”并说“你好，你怎么样”。由于未设置 selfdelete 位，因此呼叫完成后，网关中的呼叫请求记录将不会被删除。然后您可以使用 CallStatus 获取呼叫状态，或使用 CallRemove 删除呼叫记录。
其他方法如下，详情请参阅 Voicent Gateway 简易外呼接口。
- string CallAudio(string phoneno, string audiofile, bool selfdelete)
示例
- CallAudio("123-4567", "C:\my audios\hello.wav", true);
- string CallStatus(string reqId)
示例
- string status = CallStatus("11234035434");
- void CallRemove(string reqId)
示例
- CallRemove("11234035434");
- void CallTillConfirm(string vcastexe, string vocfile, string wavfile, string ccode)
示例
- CallTillConfirm(
"C:\Program Files\Voicent\BroadcastByPhone\bin\vcast.exe",
"C:\My calllist\escalation.voc",
"C:\My calllist\escalation.wav", - "911911");
源代码
此应用程序必须基于网关。在此，我们使用 Voicent Gateway 作为服务器，因为我至今尚未找到任何免费网关。您也可以访问此网站了解有关 IVR 的更多信息。
---------------- File Voicent.cs: ---------------- using System; using System.Net; using System.IO; namespace Voicent { /// <summary> /// Interface class for making telephone calls using the simple /// API of Voicent Gateway. /// </summary> public class Voicent { /// <summary> /// Default constructor use https://:8155 /// </summary> public Voicent() { m_host = "localhost"; m_port = 8155; } /// <summary> /// Constructor with host and port /// </summary> /// <param name="host">Hostname of Voicent Gateway</param> /// <param name="port">port number of Voicent Gateway</param> public Voicent(string host, int port) { m_host = host; m_port = port; } /// <summary> /// Call the specified phone number and play the text using /// text-to-speech engine /// </summary> /// <param name="phoneno">telephone number to call</param> /// <param name="text">text message to play</param> /// <param name="selfdelete">if set to one, automatically remove call record on /// gateway after the call is made</param> /// <returns>Call Request ID on gateway</returns> public string CallText(string phoneno, string text, bool selfdelete) { // call request url string urlstr = "/ocall/callreqHandler.jsp"; // setting the http post string string poststr = "info=Simple Text Call " + phoneno; poststr += "&phoneno=" + phoneno; poststr += "&firstocc=10"; poststr += "&selfdelete="; poststr += (selfdelete ? "1" : "0"); poststr += "&txt=" + text; // Send Call Request String rcstr = PostToGateway(urlstr, poststr); return GetRequestID(rcstr); } /// <summary> /// Call the specified phone number and play the audio file /// </summary> /// <param name="phoneno">telephone number to call</param> /// <param name="filename">audio file path name</param> /// <param name="selfdelete">if set to one, automatically remove call record on /// gateway after the call is made</param> /// <returns>Call Request ID on gateway</returns> public string CallAudio(string phoneno, string filename, bool selfdelete) { // call request url string urlstr = "/ocall/callreqHandler.jsp"; // setting the http post string string poststr = "info=Simple Audio Call " + phoneno; poststr += "&phoneno=" + phoneno; poststr += "&firstocc=10"; poststr += "&selfdelete="; poststr += (selfdelete ? "1" : "0"); poststr += "&audiofile=" + filename; // Send Call Request String rcstr = PostToGateway(urlstr, poststr); return GetRequestID(rcstr); } /// <summary> /// Get call request status /// </summary> /// <param name="reqID">Call request ID</param> /// <returns>status code</returns> public string CallStatus(string reqID) { // call status url string urlstr = "/ocall/callstatusHandler.jsp"; string poststr = "reqid=" + reqID; // Send Call Request String rcstr = PostToGateway(urlstr, poststr); if (rcstr.IndexOf("^made^") != -1) return "Call Made"; if (rcstr.IndexOf("^failed^") != -1) return "Call Failed"; if (rcstr.IndexOf("^retry^") != -1) return "Call Will Retry"; return ""; } /// <summary> /// Remove the call request on the gateway /// </summary> /// <param name="reqID">Call Request ID</param> public void CallRemove(string reqID) { // call status url string urlstr = "/ocall/callremoveHandler.jsp"; string poststr = "reqid=" + reqID; // Send Call Request PostToGateway(urlstr, poststr); } /// <summary> /// Invoke Voicent BroadcastByPhone and start the call-till-confirm escalation process /// </summary> /// <param name="vcastexe">BroadcastByPhone executable file path</param> /// <param name="vocfile">BroadcastByPhone call list file path</param> /// <param name="wavfile">Audio file, must be PCM 8KHz, 16bit, mono wave file format</param> /// <param name="ccode">Confirmation code, numbers only</param> public void CallTillConfirm(string vcastexe, string vocfile, string wavfile, string ccode) { // call request url string urlstr = "/ocall/callreqHandler.jsp"; // setting the http post string string poststr = "info=Simple Call till Confirm"; poststr += "&phoneno=1111111"; // any number poststr += "&firstocc=10"; poststr += "&selfdelete=0"; poststr += "&startexec=" + vcastexe; string cmdline = "\"" + vocfile + "\" -startnow"; cmdline += " -confirmcode " + ccode; cmdline += " -wavfile " + "\"" + wavfile + "\""; // add -cleanstatus if necessary poststr += "&cmdline=" + cmdline; PostToGateway(urlstr, poststr); } protected string PostToGateway(string urlstr, string poststr) { Uri url = new Uri("http://" + m_host + ":" + m_port.ToString() + urlstr); HttpWebRequest HttpWRequest = (HttpWebRequest) WebRequest.Create(url); HttpWRequest.Headers.Set("Pragma", "no-cache"); HttpWRequest.Timeout = 60000; HttpWRequest.Method = "POST"; HttpWRequest.ContentType = "application/x-www-form-urlencoded"; byte[] PostData = System.Text.Encoding.ASCII.GetBytes(poststr); HttpWRequest.ContentLength = PostData.Length; Stream tempStream = HttpWRequest.GetRequestStream(); tempStream.Write(PostData,0,PostData.Length); tempStream.Close(); HttpWebResponse HttpWResponse = (HttpWebResponse) HttpWRequest.GetResponse(); Stream receiveStream = HttpWResponse.GetResponseStream(); StreamReader readStream = new StreamReader(receiveStream); string rcstr = ""; Char[] read = new Char[256]; int count = 0; while ((count = readStream.Read(read, 0, 256)) > 0) { rcstr += new String(read, 0, count); } HttpWResponse.Close(); readStream.Close(); return rcstr; } protected string GetRequestID(string rcstr) { int index1 = rcstr.IndexOf("[ReqId="); if (index1 == -1) return ""; index1 += 7; int index2 = rcstr.IndexOf("]", index1); if (index2 == -1) return ""; return rcstr.Substring(index1, index2 - index1); } private string m_host; private int m_port; } } -------------------- File TextVoicent.cs: -------------------- using System; using System.Threading; using Voicent; namespace csapi { /// <summary> /// Simple class to test Voicent C# Simple Interface /// </summary> class TestVoicent { /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main(string[] args) { string phoneno = "8147838"; // Replace it with your number Voicent.Voicent voicent = new Voicent.Voicent(); // Test CallText string reqId = voicent.CallText(phoneno, "Hello, how are you", true); Console.WriteLine("Call request ID = " + reqId); // Test CallAudio reqId = voicent.CallAudio(phoneno, "C:/Program Files/Voicent/MyRecordings/sample_message.wav", false); Console.WriteLine("Call request ID = " + reqId); // try to get status while (true) { Thread.Sleep(20000); // wair for 20 seconds string status = voicent.CallStatus(reqId); Console.WriteLine("Call Status: " + status); if (status.Length != 0) break; } // remove the call request on the gateway voicent.CallRemove(reqId); // Test call-till-confirm voicent.CallTillConfirm("C:/Program Files/Voicent/BroadcastByPhone/bin/vcast.exe", "C:/temp/testctf.voc", "C:/Program Files/Voicent/MyRecordings/sample_message.wav", "12345"); } } }
IVR 的亮点
理想的呼入与呼出 IVR 解决方案
 |
自助服务 |
| 让呼叫者能够简单轻松地在几秒钟内获得标准查询的答案，无需人工座席 | |
|
联系正确的座席 |
| 自动从呼叫者那里捕获相关信息，并将他们转接到合适的座席处理呼叫 | |
|
24/7 客户服务 |
| 让您的客户在需要时获取所需信息。您的 IVR 应用即使在您不在时也在工作，或者它可以将来电转接到您的手机。 | |
|
自动外呼 IVR |
| 与 BroadcastByPhone Autodialer 完全集成。全自动交互式外呼应用程序，用于生成销售线索并与客户保持联系。 |
呼入与呼出 IVR 解决方案主要特点
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点按式呼叫流程设计 |
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可部署在任何装有 Windows 2000/2003/XP/Vista 的 PC 上 |
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将呼叫转接至任何电话，例如您的手机 |
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交互式触摸音响应 |
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语音命令响应 |
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自动文本转语音 |
|
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轻松集成到您的网站 |
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(开发人员功能) 通过 Java 与任何程序集成 |
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支持 Skype 或语音调制解调器进行呼叫 |
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支持单条电话线或多条电话线 |
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自然文本转语音引擎，可在电话中播放任何文本 |
IVR 历史
无。