wp7手机拨打长途电话

由于入手wp7手机，发现每次打长途都没有加17951(记不住别人号码)

xap文件下载见附件，源码如下：由于学习中，写的不好 请勿拍砖，谢谢

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using Microsoft.Phone.Controls;

using Microsoft.Phone.Tasks;

namespace IPCall

{

public partial class MainPage : PhoneApplicationPage

{

PhoneCallTask phoneTask;

PhoneNumberChooserTask phoneNumber;

// 构造函数

public MainPage()

{

InitializeComponent();

phoneTask = new PhoneCallTask();

phoneNumber = new PhoneNumberChooserTask();

phoneNumber.Completed+=new EventHandler<PhoneNumberResult>(PhoneNumber_Completed);

}

private void btn_Contacts_Click(object sender, RoutedEventArgs e)

{

phoneNumber.Show();

}

void PhoneNumber_Completed(object sender, PhoneNumberResult e)

{

if (e.TaskResult == TaskResult.OK)

{

this.txt_IpCode.Text += e.PhoneNumber;

}

}

private void btn_Call_Click(object sender, RoutedEventArgs e)

{

phoneTask.PhoneNumber = txt_IpCode.Text;

phoneTask.Show();

}

}

}

附件：http://down.51cto.com/data/2361613