[#2006] Add call new state conferencing in deamon

sflphone-common/src/call.cpp

@@ -134,6 +134,10 @@ Call::getStateStr ()
 
             break;
 
+        case Conferencing:
+	    state_str = "CONFERENCING";
+	    break;
+
         case Refused:
 
         case Error:

sflphone-common/src/call.h

@@ -67,7 +67,7 @@ class Call{
         /**
          * The Call State.
          */
-        enum CallState {Inactive, Active, Hold, Busy, Refused, Error};
+        enum CallState {Inactive, Active, Hold, Busy, Conferencing, Refused, Error};
 
         /**
          * Constructor of a call

sflphone-common/src/managerimpl.cpp

@@ -2572,6 +2572,7 @@ ManagerImpl::getCallStatus (const std::string& sequenceId UNUSED)
             switch (call->getState()) {
 
                 case Call::Active:
+	        case Call::Conferencing:
                     code="112";
                     status = "Established";
                     break;