diff --git a/channels/iax.h b/channels/iax.h
index 51c4c0f266032c28ed304d1520a46f974c9aa3c8..fbd98ee5dd2a1ab6a0e521d1a498747f51a7113c 100755
--- a/channels/iax.h
+++ b/channels/iax.h
@@ -55,6 +55,7 @@
 #define AST_IAX_COMMAND_TXREJ	27	/* Transfer reject */
 #define AST_IAX_COMMAND_QUELCH	28	/* Stop audio/video transmission */
 #define AST_IAX_COMMAND_UNQUELCH 29	/* Resume audio/video transmission */
+#define AST_IAX_COMMAND_POKE    30  /* Like ping, but does not require an open connection */
 
 #define AST_DEFAULT_REG_EXPIRE  60	/* By default require re-registration once per minute */