diff --git a/message_handler.hpp b/message_handler.hpp
index 60b7a6d..0f553b7 100644
--- a/message_handler.hpp
+++ b/message_handler.hpp
@@ -73,6 +73,20 @@
          */
         void sendSOLPayload(const sol::Buffer& input);
 
+        /** @brief Send the unsolicited IPMI payload to the remote console.
+         *
+         *  This is used by commands like SOL activating, in which case the BMC
+         *  has to notify the remote console that a SOL payload is activating
+         *  on another channel.
+         *
+         *  @param[in] netfn - Net function.
+         *  @param[in] cmd - Command.
+         *  @param[in] input - Command request data.
+         */
+        void sendUnsolicitedIPMIPayload(uint8_t netfn,
+                                        uint8_t cmd,
+                                        const std::vector<uint8_t>& input);
+
         // BMC Session ID for the Channel
         session::SessionID sessionID;