How to get IMSI in 3rd edition

Hi All,
I have the following code to get IMSI in 2ed edition:

RTelServer iServer;
RMobilePhone iPhone;
HBufC *iIMSI;
User::LeaveIfError(iServer.Connect());
User::LeaveIfError(iServer.GetPhoneInfo(0, info));
User::LeaveIfError(iPhone.Open(iServer, info.iName));
iPhone.GetSubscriberId(iStatus, iImsi);

But I need in 3rd edition......Please help me.

Thanks in advance.
SatishKhatri