.
EXAMPLE
CallText("123-4567", "Hello, how are you doing", true); Make a call to phone number '123-4567' and say 'Hello, how are you doing'. Since the selfdelete bit is set, the call request record in the IVR will be removed automatically after the call. string reqId = CallText("123-4567", "Hello, how are you", 0); Make a call to phone number '123-4567' and say 'Hello, how are you'. Since the selfdelete bit is not set, the call request record in the gateway will not be removed after the call. You can then use CallStatus to get the call status, or use CallRemove to remove the call record.
Here is the other methods, there is detail in the Voicent Gateway Simple Outbound Call Interface.
SYNOPSIS
string CallAudio(string phoneno, string audiofile, bool selfdelete)
EXAMPLE
CallAudio("123-4567", "C:\my audios\hello.wav", true);
SYNOPSIS
string CallStatus(string reqId)
EXAMPLE
string status = CallStatus("11234035434");
SYNOPSIS
void CallRemove(string reqId)
EXAMPLE
CallRemove("11234035434");
SYNOPSIS
void CallTillConfirm(string vcastexe, string vocfile, string wavfile, string ccode)
EXAMPLE
CallTillConfirm( "C:\Program Files\Voicent\BroadcastByPhone\bin\vcast.exe", "C:\My calllist\escalation.voc", "C:\My calllist\escalation.wav", "911911");
Source Code
This application must be based on a gateway.here, we use the Voicent Gateway for the server, because I haven't find any free gateway by now. And you also can visit this website for more information about the IVR.
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File Voicent.cs:
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using System; using System.Net; using System.IO;
namespace Voicent {
/// /// Interface class for making telephone calls using the simple /// API of Voicent Gateway. /// public class Voicent { /// /// Default constructor use http://localhost:8155 /// public Voicent() { m_host = "localhost";
m_port = 8155; }
/// /// Constructor with host and port /// /// Hostname of Voicent Gateway /// port number of Voicent Gateway public Voicent(string host, int port) { m_host = host;
m_port = port; }
/// /// Call the specified phone number and play the text using /// text-to-speech engine /// /// telephone number to call /// text message to play /// if set to one, automatically remove call record on /// gateway after the call is made /// Call Request ID on gateway 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);
}
/// /// Call the specified phone number and play the audio file /// /// telephone number to call /// audio file path name /// if set to one, automatically remove call record on /// gateway after the call is made /// Call Request ID on gateway 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); }
/// /// Get call request status /// /// Call request ID /// status code 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 ""; }
/// /// Remove the call request on the gateway /// /// Call Request ID public void CallRemove(string reqID) { // call status url string urlstr = "/ocall/callremoveHandler.jsp";
string poststr = "reqid=" + reqID;
// Send Call Request PostToGateway(urlstr, poststr); }
/// /// Invoke Voicent BroadcastByPhone and start the call-till-confirm escalation process /// /// BroadcastByPhone executable file path /// BroadcastByPhone call list file path /// Audio file, must be PCM 8KHz, 16bit, mono wave file format /// Confirmation code, numbers only 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 { /// /// Simple class to test Voicent C# Simple Interface /// class TestVoicent { /// /// The main entry point for the application. ///
[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");
}
}
}
Points of Interest about IVR
Ideal inbound & Outbound IVR solution Self-service
Allow callers to get answers to standard inquiries simply and easily, and in seconds, without the need for an agent Reach the right agent
Automatically capture relevant information from your callers and direct them to the appropriate agent to handle their call 24/7 customer service
Enable your customers to get the information they need, when they need it. Your IVR application is working even when youa
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