using recording file extension for saving message. patch by Andrey Samusenko

git-svn-id: http://svn.berlios.de/svnroot/repos/sems/trunk@1706 8eb893ce-cfd4-0310-b710-fb5ebe64c474

apps/voicemail/AnswerMachine.cpp

@@ -972,7 +972,7 @@ void AnswerMachineDialog::saveMessage()
 
 void AnswerMachineDialog::saveBox(FILE* fp) {
   string msg_name = email_dict["ts"] + MSG_SEPARATOR +  
-    email_dict["sender"] + ".wav";
+    email_dict["sender"] + "." + AnswerMachineFactory::RecFileExt;
   DBG("message name is '%s'\n", msg_name.c_str());
 
   AmArg di_args,ret;