Please note that as of October 24, 2014, the Nokia Developer Wiki will no longer be accepting user contributions, including new entries, edits and comments, as we begin transitioning to our new home, in the Windows Phone Development Wiki. We plan to move over the majority of the existing entries. Thanks for all your past and future contributions.

Creating video and VoIP calls on Symbian

From Wiki
Jump to: navigation, search
Article Metadata
Tested with
Devices(s): All 3.0 Devices & some 3.1 Devices
Platform(s): Symbian
Keywords: AIW (Application Interworking), CAiwServiceHandler, CAiwCriteriaItem
Created: User:Technical writer 2 (July 4, 2007; Updated March 23, 2011)
Last edited: hamishwillee (02 Jul 2012)



It is possible to initiate video and Internet telephony (VoIP) calls with the AIW Service Handler API, included in the Extensions plug-in package for S60 3rd Edition SDKs.

Note.pngNote: 1. This API is not part of the public SDK.

2. This works fine in S60 3rd Edition and S60 3rd Edition FP1 devices, but ExecuteServiceCmdL fails with error code(-6),KErrArgument on the Nokia N95 8GB. There is already a Known Issue regarding this, see the following link: Archived:Dialing a voice call using AIW fails in Nokia N95 8GB (Known Issue).
3. This will also not work on S60 3rd Edition FP2, S60 5th Edition, or Symbian ^3.

4.Use the 3rd Party Telephony API or Phone Client Dial APIs (part of API Plug-in package) instead of AIW.

MMP file


 CAPABILITY	NetworkControl ReadDeviceData WriteDeviceData NetworkServices


 LIBRARY servicehandler.lib 
LIBRARY ws32.lib

Header file

System Includes

 #include <AiwDialDataTypes.h>
#include <AiwCommon.hrh>
#include <AiwCommon.h>
#include <AiwGenericParam.h>
#include <AiwVariant.h>
#include <aiwservicehandler.h>

In Header File

   void MakeAiwCallL(const TDesC& aNumber,const TDesC& aName,
TAiwCallType aCallType );
TAiwNameBuffer iNameBuffer;
CAiwCriteriaItem* iCriteria;
CAiwServiceHandler* iServiceHandler;

Source file

In ConstructL of Source File

   // Create AIW service handler
iServiceHandler = CAiwServiceHandler::NewLC();
// Create AIW iCriteria
iCriteria =CAiwCriteriaItem::NewLC( KAiwCmdCall,KAiwCmdCall,_L8( "*" ) );

MakeAiwCallL(const TDesC& aNumber,const TDesC& aName,TAiwCallType
                                                          aCallType )      
  // Create AIW interest
  RCriteriaArray interest;
  CleanupClosePushL( interest );      
  const TUid KUidAiwBase = { KAiwClassBase };
  iCriteria->SetServiceClass( KUidAiwBase );
  User::LeaveIfError( interest.Append( iCriteria ) );
  // Attach to AIW interest
  iServiceHandler->AttachL( interest );
  // Create AIW param package
  TAiwDialDataV1 data;
  TAiwDialDataV1Pckg dataPckg( data );
  iNameBuffer = aName.Left( iNameBuffer.MaxLength() );
  data.SetName( iNameBuffer );
  TAiwTelephoneNumber iTelNumber(aNumber);
  iTelNumber = aNumber.Left( iTelNumber.MaxLength() );
  data.SetTelephoneNumber( iTelNumber );
  data.SetCallType( aCallType );
  CAiwGenericParamList& paramList = iServiceHandler->InParamListL();
  TPtrC8 ptr;
  ptr.Set( dataPckg );
  TAiwVariant variant( ptr );
  TAiwGenericParam param(EGenericParamCallDialDataV1,variant);
  paramList.AppendL( param );
  // Execute AIW command
  iServiceHandler->ExecuteServiceCmdL( KAiwCmdCall,
  // destroy interest
  CleanupStack::PopAndDestroy( 1 ); 

Using the above function, it is possible to initiate a Voice, Video, and VoIP call as follows:

   //To make Voice call
   MakeAiwCallL( _L("345672323"), _L("FirstName LastName"),EAiwVoice);
   //To make VoIP call
   MakeAiwCallL( _L("")("FirstName LastName") ,EAiwVoIP);
   //To make Video call
   MakeAiwCallL( _L("345672323"), _L("FirstName LastName"),EAiwVideo);

   //Memory clean up.
      delete iCriteria;
      iCriteria = NULL;
      delete iServiceHandler;
      iServiceHandler = NULL;

This page was last modified on 2 July 2012, at 11:40.
34 page views in the last 30 days.