Allow for optional seperate (and longer) CW Ids.

MMDVMHost.h

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2015,2016 by Jonathan Naylor G4KLX
+ *   Copyright (C) 2015,2016,2017 by Jonathan Naylor G4KLX
  *
  *   This program is free software; you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -64,6 +64,7 @@ private:
   unsigned int   m_cwIdTime;
   CDMRLookup*    m_lookup;
   std::string    m_callsign;
+  std::string    m_cwCallsign;
 
   void readParams();
   bool createModem();