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Symbian Developer Library

SYMBIAN OS V9.4

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Supplementary services setting information

All of the following information is available through the Telephony ISV API, CTelephony:

All networks:

GSM/WCDMA networks only:

Note: None of this information is available when the phone is in Flight Mode

Get current value

You can get the current value of all these items. Each item's description gives you an example of this. Some of the methods to get information are asynchronous; the operation can be cancelled before it completes.

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Call barring status

Description

The call carring status indicates whether call barring is active, inactive or not avilable. The status can also be not provisioned on GSM/WCDMA networks.

Phones have different call barring settings for different conditions. For instance, a phone might bar outgoing calls but accept incoming calls. You can get the call barring status for each of the conditions in CTelephony::TCallBarringCondition.

Get current value

CTelephony::GetCallBarringStatus() writes the information to a packaged CTelephony::TCallBarringSupplServicesV1. Pass the method a CTelephony::TCallBarringCondition to select the conditon.

This is an asynchronus call; use CTelephony::EGetCallBarringStatusCancel to cancel it.

This example finds out whether outgoing calls are barred: 

#include <e32base.h>
#include <Etel3rdParty.h>

class CClientApp : public CActive
    { 

private:
    CTelephony* iTelephony;
    CTelephony::TCallBarringSupplServicesV1 iCallBarringSupplServicesV1;
    CTelephony::TCallBarringSupplServicesV1Pckg iCallBarringSupplServicesV1Pckg;

public:
    CClientApp(CTelephony* aTelephony);
    void SomeFunction();

private:
    /*
       These are the pure virtual methods from CActive that  
       MUST be implemented by all active objects
       */
    void RunL();
    void DoCancel();
   };

CClientApp::CClientApp(CTelephony* aTelephony)
    : CActive(EPriorityStandard),
      iTelephony(aTelephony),
      iCallBarringSupplServicesV1Pckg(iCallBarringSupplServicesV1)
    {
    //default constructor
    }

void CClientApp::SomeFunction()
    {
    CTelephony::TCallBarringCondition condition = CTelephony::EBarAllOutgoing;
    iTelephony->GetCallBarringStatus(iStatus, condition, iCallBarringSupplServicesV1Pckg);
    SetActive();
    }

void CClientApp::RunL()
    {
    if(iStatus==KErrNone)
       {
       if( iCallBarringSupplServicesV1.iCallBarring == CTelephony::EStatusActive )
          {} // The call barring condition is active; 
             // all outgoing calls are barred.
       }
    }

void CClientApp::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetCallBarringStatusCancel);
    }

Remember to link to the Etel3rdParty.lib and euser.lib libraries.

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Call waiting status

Description

The call waiting status indicates whether call waiting is active, inactive or not avilable. The status can also be not provisioned on GSM/WCDMA networks.

Get current value

CTelephony::GetCallWaitingStatus() writes the information to a packaged CTelephony::TCallWaitingSupplServicesV1.

This is an asynchronus call; use CTelephony::EGetCallWaitingStatusCancel to cancel it.

For example: 

#include <e32base.h>
#include <Etel3rdParty.h>

class CClientApp : public CActive
    { 

private:
    CTelephony* iTelephony;
    CTelephony::TCallWaitingSupplServicesV1 iCallWaitingSupplServicesV1;
    CTelephony::TCallWaitingSupplServicesV1Pckg iCallWaitingSupplServicesV1Pckg;

public:
    CClientApp(CTelephony* aTelephony);
    void SomeFunction();

private:
    /*
       These are the pure virtual methods from CActive that  
       MUST be implemented by all active objects
       */
    void RunL();
    void DoCancel();
   };

CClientApp::CClientApp(CTelephony* aTelephony)
    : CActive(EPriorityStandard),
      iTelephony(aTelephony),
      iCallWaitingSupplServicesV1Pckg(iCallWaitingSupplServicesV1)
    {
    //default constructor
    }

void CClientApp::SomeFunction()
    {
    iTelephony->GetCallWaitingStatus(iStatus, iCallWaitingSupplServicesV1Pckg);
    SetActive();
    }

void CClientApp::RunL()
    {
    if(iStatus==KErrNone)
       {
       CTelephony::TSupplServiceStatus callWaitingStatus = iCallWaitingSupplServicesV1.iCallWaiting;
       }
    }

void CClientApp::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetCallWaitingStatusCancel);
    }

Remember to link to the Etel3rdParty.lib and euser.lib libraries.

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Call forwarding status

Description

The call forwarding status indicates whether call forwarding is active, inactive, not provisioned or not avilable.

Phones can have different call forwarding settings for different conditions. For instance, a phone might forward calls when the subscriber is busy, but not when the subscriber doesn't respond. You can get the status for each of the conditions in CTelephony::TCallForwardingCondition.

Note: Call forwarding information is only available on GSM/WCDMA networks. Symbian OS does not provide this information for phones on CDMA networks.

Get current value

CTelephony::GetCallForwardingStatus() writes the information to a packaged CTelephony::TCallForwardingSupplServicesV1. Pass the method a CTelephony::TCallForwardingCondition to select the conditon.

This is an asynchronus call; use CTelephony::EGetCallForwardingStatusCancel to cancel it.

For example: 

#include <e32base.h>
#include <Etel3rdParty.h>

class CClientApp : public CActive
    { 

private:
    CTelephony* iTelephony;
    CTelephony::TCallForwardingSupplServicesV1 iCallForwardingSupplServicesV1;
    CTelephony::TCallForwardingSupplServicesV1Pckg iCallForwardingSupplServicesV1Pckg;

public:
    CClientApp(CTelephony* aTelephony);
    void SomeFunction();

private:
    /*
       These are the pure virtual methods from CActive that  
       MUST be implemented by all active objects
       */
    void RunL();
    void DoCancel();
   };

CClientApp::CClientApp(CTelephony* aTelephony)
    : CActive(EPriorityStandard),
      iTelephony(aTelephony),
      iCallForwardingSupplServicesV1Pckg(iCallForwardingSupplServicesV1)
    {
    //default constructor
    }

void CClientApp::SomeFunction()
    {
    CTelephony::TCallForwardingCondition condition = CTelephony::ECallForwardingNoReply;
    iTelephony->GetCallForwardingStatus(iStatus, condition, iCallForwardingSupplServicesV1Pckg);
    SetActive();
    }

void CClientApp::RunL()
    {
    if(iStatus==KErrNone)
       {
       if( iCallForwardingSupplServicesV1.iCallForwarding == CTelephony::ENotActive )
          {} // The call forwarding condition is inactive; 
             // If the phone user does not answer a call then the call is _not_ forwarded
       }
    }

void CClientApp::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetCallForwardingStatusCancel);
    }

Remember to link to the Etel3rdParty.lib and euser.lib libraries.

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You cannot receive notification when this item changes.

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Caller Identification status

See who is calling you (CLIP)

Description

When CLIP (Calling Line Identification Presentation) is enabled then the phone displays the number of remote party that calls your phone. The remote party can the withold their number using a complementaty service, CLIR (see below).

CTelephony can tell you the status of the CLIP service.

Note: This information is only available on GSM/WCDMA networks. Symbian OS does not provide this information for phones on CDMA networks.

Get current value

CTelephony::GetIdentityServiceStatus() writes the information to a packaged CTelephony::TIdentityServiceV1. Pass it a CTelephony::TIdentityService set to CTelephony::EIdServiceCallerPresentation

This is an asynchronus call; use CTelephony::EGetIdentityServiceStatusCancel to cancel it.

For example: 

#include <e32base.h>
#include <Etel3rdParty.h>

class CClientApp : public CActive
    { 

private:
    CTelephony* iTelephony;
    CTelephony::TIdentityServiceV1 iTIdentityServiceV1;
    CTelephony::TIdentityServiceV1Pckg iTIdentityServiceV1Pckg;

public:
    CClientApp(CTelephony* aTelephony);
    void SomeFunction();

private:
    /*
       These are the pure virtual methods from CActive that  
       MUST be implemented by all active objects
       */
    void RunL();
    void DoCancel();
   };

CClientApp::CClientApp(CTelephony* aTelephony)
    : CActive(EPriorityStandard),
      iTelephony(aTelephony),
      iTIdentityServiceV1Pckg(iTIdentityServiceV1)
    {
    //default constructor
    }

void CClientApp::SomeFunction()
    {
    CTelephony::TIdentityService condition = CTelephony::EIdServiceCallerPresentation;
    iTelephony->GetIdentityServiceStatus(iStatus, condition, iTIdentityServiceV1Pckg);
    SetActive();
    }

void CClientApp::RunL()
    {
    if(iStatus==KErrNone)
       {
       if( iTIdentityServiceV1.iIdentityStatus == CTelephony::EIdServiceActivePermanent )
          {} // CLIP is permanently active; 
             // Your phone will display the callers number whenever this is allowed by the caller
       }
    }

void CClientApp::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetIdentityServiceStatusCancel);
    }

Remember to link to the Etel3rdParty.lib and euser.lib libraries.

Request notification of changes

You cannot receive notification when this item changes.

Withold your number (CLIR)

Description

When CLIR (Calling Line Identification Restriction) is enabled then the remote party cannot see your number when your phone makes a call. Otherwise, they can see your phone's number if they have a complementary service, CLIP, enabled (see above).

CTelephony can tell you the status of the CLIR service.

Note: This information is only available on GSM/WCDMA networks. Symbian OS does not provide this information for phones on CDMA networks.

Get current value

CTelephony::GetIdentityServiceStatus() writes the information to a packaged CTelephony::TIdentityServiceV1. Pass it a CTelephony::TIdentityService set to CTelephony::EIdServiceCallerRestriction.

This is an asynchronus call; use CTelephony::EGetIdentityServiceStatusCancel to cancel it.

For example: 

#include <e32base.h>
#include <Etel3rdParty.h>

class CClientApp : public CActive
    { 

private:
    CTelephony* iTelephony;
    CTelephony::TIdentityServiceV1 iTIdentityServiceV1;
    CTelephony::TIdentityServiceV1Pckg iTIdentityServiceV1Pckg;

public:
    CClientApp(CTelephony* aTelephony);
    void SomeFunction();

private:
    /*
       These are the pure virtual methods from CActive that  
       MUST be implemented by all active objects
       */
    void RunL();
    void DoCancel();
   };

CClientApp::CClientApp(CTelephony* aTelephony)
    : CActive(EPriorityStandard),
      iTelephony(aTelephony),
      iTIdentityServiceV1Pckg(iTIdentityServiceV1)
    {
    //default constructor
    }

void CClientApp::SomeFunction()
    {
    CTelephony::TIdentityService condition = CTelephony::EIdServiceCallerRestriction;
    iTelephony->GetIdentityServiceStatus(iStatus, condition, iTIdentityServiceV1Pckg);
    SetActive();
    }

void CClientApp::RunL()
    {
    if(iStatus==KErrNone)
       {
       if( iTIdentityServiceV1.iIdentityStatus == CTelephony::EIdServiceNotProvisioned )
          {} // CLIR is in-active;
             // The phone's number is freely available to any remote party that
             // has the CLIP service enabled.
       }
    }

void CClientApp::DoCancel()
    {
    iTelephony->CancelAsync(CTelephony::EGetIdentityServiceStatusCancel);
    }

Remember to link to the Etel3rdParty.lib and euser.lib libraries.

Request notification of changes

You cannot receive notification when this item changes.

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