sbc: b/f: reply 100 Trying to in-dlg msgs which are to be relayed

Conflicts:

	apps/sbc/SBC.cpp

apps/sbc/SBC.cpp

@@ -858,6 +858,11 @@ void SBCDialog::onSipRequest(const AmSipRequest& req) {
     }
   }
 
+  if (fwd) {
+      DBG("replying 100 Trying of %s msg to be fwd'ed\n", req.method.c_str());
+      dlg.reply(req, 100, SIP_REPLY_TRYING);
+  }
+
   AmB2BCallerSession::onSipRequest(req);
 }
 
@@ -1221,6 +1226,11 @@ void SBCCalleeSession::onSipRequest(const AmSipRequest& req) {
     }
   }
 
+  if (fwd) {
+      DBG("replying 100 Trying of %s msg to be fwd'ed\n", req.method.c_str());
+      dlg.reply(req, 100, SIP_REPLY_TRYING);
+  }
+
   AmB2BCalleeSession::onSipRequest(req);
 }
 

core/AmSipHeaders.h

@@ -62,5 +62,6 @@
 #define SIP_REPLY_EXTENSION_REQUIRED    "Extension Required"
 #define SIP_REPLY_LOOP_DETECTED         "Loop Detected"
 #define SIP_REPLY_NOT_EXIST             "Call Leg/Transaction Does Not Exist"
+#define SIP_REPLY_TRYING                "Trying"
 
 #endif /* __AMSIPHEADERS_H__ */