symbian 下面调用电话拨号的方法

本文链接：https://blog.youkuaiyun.com/jb80400812/article/details/5776627

本文介绍了一种在Symbian S60平台上通过代码实现拨打电话的方法。具体步骤包括加载电话模块、获取电话信息、打开电话线路并发起呼叫等。

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开发电话本应用的时候，时常会需要直接拨打对方的电话号码。
那么，如何在symbian s60平台上通过代码让自己的手机拨号呢？
下面的代码可能会帮助你的：

加入头文件：
#include <etel.h>          // for dial operatons
在mmp文件中需要加入：
LIBRARY       etel.lib       // for dial operations
TBool CMcAppUi::dialTel(TDesC & telNum) {
      _LIT(KPHONE_DRV, "phonetsy.tsy") ;
      //Create a connection to the tel server
      RTelServer server;
      CleanupClosePushL(server);
      User::LeaveIfError(server.Connect());

      //Load in the phone device driver
      User::LeaveIfError(server.LoadPhoneModule(KPHONE_DRV));

      //Find the number of phones available from the tel server
      TInt numberPhones;
      User::LeaveIfError(server.EnumeratePhones(numberPhones));

      //Check there are available phones
      if (numberPhones < 1)       {
            User::Leave(KErrNotFound);
      }

      //Get info about the first available phone
      RTelServer::TPhoneInfo info;
      User::LeaveIfError(server.GetPhoneInfo(0, info));

      //Use this info to open a connection to the phone, the phone is identified by its name
      RPhone phone;
      CleanupClosePushL(phone);
      User::LeaveIfError(phone.Open(server, info.iName));

      //Get info about the first line from the phone
      RPhone::TLineInfo lineInfo;
      User::LeaveIfError(phone.GetLineInfo(0, lineInfo));

      //Use this to open a line
      RLine line;
      CleanupClosePushL(line);
      User::LeaveIfError(line.Open(phone, lineInfo.iName));

      //Open a new call on this line
      TBuf <100> newCallName;
      RCall call;
      CleanupClosePushL(call);
      User::LeaveIfError(call.OpenNewCall(line, newCallName));

      //newCallName will now contain the name of the call
      User::LeaveIfError(call.Dial(telNum));

      //Close the phone, line and call connections and remove them from the cleanup stack
      //NOTE: This does not hang up the call
      CleanupStack::PopAndDestroy(3);//phone, line, call

      //Unload the phone device driver
      User::LeaveIfError(server.UnloadPhoneModule(KPHONE_DRV));

      //Close the connection to the tel server and remove it from the cleanup stack
      CleanupStack::PopAndDestroy(&server);
      return ETrue ;
}
这段代码很好用的，在多款s60真机上测试过