[reSIProcate] How to deal with more than one session in a dum?

[常铮]

Hi all
I want to deal with more than one session in a DUM, 
For example, in terminal A, there are two INVITE from B and C at the same time, how to choice one to answer?
For another example, also in terminal A, there are two connection with B and C, how to choice one to hungup?
I know there is a function in DUM, 
InviteSessionHandle findInviteSession(DialogId id);
but I donot know how to use it.

In addition, I have use                  
  auto_ptr<AppDialogSetFactory> uac_dsf(new testAppDialogSetFactory);
  dumUac->setAppDialogSetFactory(uac_dsf);
in Initialize( ).

Thank you!

ZhengChang
Beijing , China