in Es_prot.h, CProtocolBase class has two flavours of Send() function:
Send(RMBufChain& aPDU,CProtocolBase* aSourceProtocol=NULL)
Send(TDes8& aPDU,TSockAddr* to,TSockAddr* from=NULL,CProtocolBase*aSourceProtocol=NULL)
which Send() will be used to send packets down the stack to lower level protocol?
in what condition the first Send() will be called? and
in what condition the second Send() will be called?