call: add dialpad access

This commit adds the ability to dial dtmf tones during a call.
It is necessary for interacting with automated services.
RTP dtmf are not working in the daemon, so during SIP account creation
we switch to SIP dtmf.

Tuleap: #154
Change-Id: I9d6758af4bc0b44605dc4b17c08b9b4ceaee84bd
diff --git a/src/DialpadWC.h b/src/DialpadWC.h
new file mode 100644
index 0000000..931d18e
--- /dev/null
+++ b/src/DialpadWC.h
@@ -0,0 +1,24 @@
+/*
+ *  Copyright (C) 2016 Savoir-faire Linux Inc.
+ *  Author: Alexandre Lision <alexandre.lision@savoirfairelinux.com>
+ *
+ *  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
+ *  the Free Software Foundation; either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+@interface DialpadWC : NSWindowController <NSWindowDelegate>
+
+@end