音频文件未在通话中播放，而是在本地系统上播放 - Skype for Business (C#)

Question

我找到了一些代码并将其修改为使用 Skype 呼叫 phone 号码，播放音频文件然后断开连接。但是，此代码中存在两个问题。

正在播放的音频文件在本地可以听到但不在 phone 通话中（接听电话的人无法听到播放的音频）。

音频文件完成后通话未断开正在播放。

using Microsoft.Lync.Model;
using Microsoft.Lync.Model.Conversation;
using Microsoft.Lync.Model.Conversation.AudioVideo;
using Microsoft.Lync.Model.Device;
using Microsoft.Lync.Model.Extensibility;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Windows.Forms;

namespace LyncTest
{
public partial class frmCaller : Form
{
    public frmCaller()
    {
        InitializeComponent();
    }

private void btnCall_Click(object sender, EventArgs e)
{
    //if this client is in UISuppressionMode...
    if (client.InSuppressedMode && client.State == ClientState.Uninitialized)
    {
        //...need to initialize it
        try
        {
            client.BeginInitialize(this.ClientInitialized, null);
        }
        catch (LyncClientException lyncClientException)
        {
            Console.WriteLine(lyncClientException);
        }
        catch (SystemException systemException)
        {
            if (LyncModelExceptionHelper.IsLyncException(systemException))
            {
                // Log the exception thrown by the Lync Model API.
                Console.WriteLine("Error: " + systemException);
            }
            else
            {
                // Rethrow the SystemException which did not come from the Lync Model API.
                throw;
            }
        }
    }
    else //not in UI Suppression, so the client was already initialized
    {
        //sign-in or contact selection
        SignInToLync();
    }
    SendLyncCall("+6512345678", "Hello, I am calling regarding a pending change request");
}

LyncClient client = LyncClient.GetClient();
private void SignInToLync()
{
    try
    {
        client.BeginSignIn("abc@contoso.com", "abc@contoso.com", "Pass@word99", HandleEndSignIn, null);
    }
    catch (LyncClientException lyncClientException)
    {
        Console.WriteLine(lyncClientException);
    }
    catch (SystemException systemException)
    {
        if (LyncModelExceptionHelper.IsLyncException(systemException))
        {
            // Log the exception thrown by the Lync Model API.
            Console.WriteLine("Error: " + systemException); 
        }
        else
        {
            // Rethrow the SystemException which did not come from the Lync Model API.
            throw;
        }
    }
}

Automation _automation = LyncClient.GetAutomation();
ConversationWindow globalConv = null;
public void SendLyncCall(string numberToCall, string textToSpeech)
{
    var targetContactUris = new List<string> { numberToCall }; //"tel:+4900000000" 

    _automation.BeginStartConversation(AutomationModalities.Audio, targetContactUris, null, StartConversationCallback, null);

    while (this.globalConv == null)
    {
        Thread.Sleep(1);
    }
    if (globalConv != null)
    {
        //client.DeviceManager.EndPlayAudioFile(
        //  client.DeviceManager.BeginPlayAudioFile(@"C:\Temp\voice.wav", AudioPlayBackModes.AlertAndCommunication, false, AudioPlayed, null)
        //  );
    }
}

private void StartConversationCallback(IAsyncResult asyncop)
{
    // this is called once the dialing completes..
    if (asyncop.IsCompleted == true)
    {
        ConversationWindow newConversationWindow = _automation.EndStartConversation(asyncop);
        globalConv = newConversationWindow;
        AVModality avModality = newConversationWindow.Conversation.Modalities[ModalityTypes.AudioVideo] as AVModality;
        avModality.ModalityStateChanged += ConversationModalityStateChangedCallback;
    }
}

/// <summary>
/// Called when the client in done initializing.
/// </summary>
/// <param name="result"></param>
private void ClientInitialized(IAsyncResult result)
{
    //registers for conversation related events
    //these events will occur when new conversations are created (incoming/outgoing) and removed
    //client.ConversationManager.ConversationAdded += ConversationManager_ConversationAdded;
    //client.ConversationManager.ConversationRemoved += ConversationManager_ConversationRemoved;
}

private void ConversationModalityStateChangedCallback(object sender, ModalityStateChangedEventArgs e)
{
    AVModality avModality = sender as AVModality;
    if (avModality != null)
    {
        switch (e.NewState)
        {
            case ModalityState.Disconnected:
                avModality.ModalityStateChanged -= ConversationModalityStateChangedCallback;
                break;

            case ModalityState.Connected:
                avModality.ModalityStateChanged -= ConversationModalityStateChangedCallback;
                //foreach (char c in "SOS")
                //{
                //    avModality.AudioChannel.BeginSendDtmf(c.ToString(), null, null);
                //    System.Threading.Thread.Sleep(500);
                //}
                client.DeviceManager.EndPlayAudioFile(client.DeviceManager.BeginPlayAudioFile(@"C:\Temp\voice.wav",
                    AudioPlayBackModes.Communication, false, AudioPlayed, null));
                break;
            case ModalityState.Invalid:
                break;
            case ModalityState.Notified:
                break;
        }
    }
}

private void AudioPlayed(IAsyncResult audioPlayed)
{
    if(audioPlayed.IsCompleted == true)
    {
        client.ConversationManager.Conversations[0].End();
    }
}
private void HandleEndSignIn(IAsyncResult ar)
{
    try
    {
        client.EndSignIn(ar);
    }
    catch (Exception e)
    {
        Console.Out.WriteLine(e);
    }
}

private void frmCaller_FormClosing(object sender, FormClosingEventArgs e)
{
    GC.Collect();
}
}
}

如有任何帮助，我们将不胜感激。谢谢。

Answer 1

Microsoft 已确认使用客户端代码无法做到这一点。我需要使用 UCMA 并为此开发服务器端解决方案。

音频文件未在通话中播放，而是在本地系统上播放 - Skype for Business (C#)

Audio file not played on the call but on local system - Skype for Business (C#)

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