Problem in compiling telephony application on ARMIB platform

[abdg27]

Hi,

I am making an application that needs to dial a no. and once the phone call is established, the control must return to the application. Then the user accesses a menu in the application and selects options, each of which send DTMF tones over the established connection. My main problem is that once a connection is established, how does control return back to the application that initiated the call?

I have tried the following code (obtained fron the forum itself) and have a problem in compiling it. On the ARMIB platform, I get an error "Dialer[xxx].app contains uninitialized data" where Dialer is the app name and xxx are some digits. However, the same code, when I compiled on the WINSB platform gave no errors. Can you tell me a possile reason?
I am using the Borland C++ mobile edition.

class myAppUi
{
...
TInt CallNumber();
TInt DoCallNumber();
static TInt DoCall(TAny *aAppUi);
...
private:
CIdle* iPhoneCall;
RCall call;
RTelServer server;
...
};

_LIT(KTsyName, "Phonetsy.tsy"); //phone constant

void myAppUi::CallNumber()
{

// The name of the TSY to use to make the call.

RTelServer::TPhoneInfo info;
RPhone::TLineInfo lineInfo;

// Connect to the telephony server and load the TSY.

User::LeaveIfError(server.Connect());
User::LeaveIfError(server.LoadPhoneModule(KTsyName));

// Get the details for the first (and only) phone.
User::LeaveIfError(server.GetPhoneInfo(0, info));

// Open the phone.
RPhone phone;
User::LeaveIfError(phone.Open(server, info.iName));

// Get the information for the voice line, line 0.
User::LeaveIfError(phone.GetLineInfo(0, lineInfo));

// Open the line. iName will now be "VoiceLine1".
RLine line;
User::LeaveIfError(line.Open(phone, lineInfo.iName));

// Open a new phone call.
_LIT(KPhoneNumber, "18888888888");
call.Dial(KPhoneNumber);

if (!(iPhoneCall))
{
iPhoneCall = CIdle::NewL(CActive::EPriorityIdle);
}

iPhoneCall->Start(TCallBack(DoCall,this));

}
TInt CNokiaREAppView:oCall(TAny *aAppUi)
{
return ((myAppUi*)aAppUi)->DoCallNumber();
}

TInt myAppUi:oCallNumber()
{

TBool ret;
RCall::TStatus iCallStatus;
call.GetStatus(iCallStatus);

// check for status of the call set ret to ETrue when hannging up
// or idle. and bring app to front

if (iCallStatus == RCall::EStatusHangingUp || iCallStatus == RCall::EStatusIdle)
{
ret = EFalse; //finished do not come back
//bring app to foreground
TApaTask task(wsSession);
task.SetWgId(CEikonEnv::Static()->RootWin().Identifier())
task.BringToForeground();
User::LeaveIfError(server.UnloadPhoneModule(KTsyName));
}
else
ret = ETrue; //not finish, do come back

return ret;
}

Please try and help me with this problem...

Thanks and regards,
Aditya

[symbianyucca]

Hi

Maybe you should the call handling into its own class. And make it as an active object. Then you could get the changes is call status by using the NotifyStatusChange()-function of the RCall class.

yucca

[xhype]

Hi,

this error message usually means that you have either static or global data (except for _LIT()s ) in your app. This however is only allowed on the WINS platform.
If you need to have static or global data you should have a look at http://www.peroon.co.il/epocstat.html

Hope this helps.

Cheers,
Pawel

[abdg27]

hi,

I could get rid of the error. Thanks!

But, now I have a problem of a more serious nature..
In my app, I want to dial and then once the call is established, I want to bring my app in the foreground and perform some functions like sending DTMF tones over the established connection. However, the code that I referred to earlier doesn't seem to be doing that. I modified the function DoCallNumber to look like this -

if (iCallStatus == RCall::EStatusConnected)
{
ret = EFalse;
//bring app to foreground
TApaTask task(CCoeEnv::Static()->WsSession());
task.SetWgId(CEikonEnv::Static()->RootWin().Identifier())
task.BringToForeground();
User::LeaveIfError(server.UnloadPhoneModule(KTsyName));
}
else
ret = ETrue; //not finish, do come back

return ret;
}

But once the call is established, my app simply closes.
Is there any other way I can achieve my goal?

Thanks in advance!

Regards,
Aditya

[xhype]

Hi again,

as i don't have experience with user interface programming i cannot tell for sure you why your app closes. However there is something in your code which i find quite striking: User::LeaveIfError(server.UnloadPhoneModule(KTsyName));

Why are you trying to unload a TSY during an active call ? This call is doomed to fail IMHO. This in turn would lead to a leave from the method you pasted.
And perhaps this is also the reason for your app's exit.

Cheers,
Pawel

[aljaz24]

Hey,

This is the same problem I seem to be having. Once you get a call you application stays in the background and I have not found a way to bring it back to foreground yet. Although I can do that for voice calls (by calling NotifyIncomgCall() method of my RLine object inside an Active object, when you manually accept the call my application shows up again....) I cannot seem to do that for data calls. If you find anything out please let me know.

Regards, Aljaz