diff --git a/keywords.txt b/keywords.txt
index 8109484b..34d077d6 100644
--- a/keywords.txt
+++ b/keywords.txt
@@ -265,6 +265,10 @@ sendTone	KEYWORD2
 dropSync	KEYWORD2
 setTimerFlag	KEYWORD2
 setInterruptSetup	KEYWORD2
+setPacketReceivedAction	KEYWORD2
+clearPacketReceivedAction	KEYWORD2
+setPacketSentAction	KEYWORD2
+clearPacketSentAction	KEYWORD2
 
 # BellModem
 setModem	KEYWORD2
diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.cpp b/src/protocols/PhysicalLayer/PhysicalLayer.cpp
index e0652bf6..1e9d3584 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.cpp
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.cpp
@@ -395,11 +395,20 @@ int16_t PhysicalLayer::setDIOMapping(uint32_t pin, uint32_t value) {
   return(RADIOLIB_ERR_UNSUPPORTED);
 }
 
-void PhysicalLayer::setDio1Action(void (*func)(void)) {
+void PhysicalLayer::setPacketReceivedAction(void (*func)(void)) {
   (void)func;
 }
 
-void PhysicalLayer::clearDio1Action() {
+void PhysicalLayer::clearPacketReceivedAction() {
+  
+}
+
+void PhysicalLayer::setPacketSentAction(void (*func)(void)) {
+  (void)func;
+}
+
+void PhysicalLayer::clearPacketSentAction() {
+  
 }
 
 #if defined(RADIOLIB_INTERRUPT_TIMING)
diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.h b/src/protocols/PhysicalLayer/PhysicalLayer.h
index a4375320..4e9ceb51 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.h
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.h
@@ -327,15 +327,26 @@ class PhysicalLayer {
     virtual int16_t setDIOMapping(uint32_t pin, uint32_t value);
 
     /*!
-      \brief Sets interrupt service routine to call when DIO1 activates.
+      \brief Sets interrupt service routine to call when a packet is received.
       \param func ISR to call.
     */
-    virtual void setDio1Action(void (*func)(void));
+    virtual void setPacketReceivedAction(void (*func)(void));
 
     /*!
-      \brief Clears interrupt service routine to call when DIO1 activates.
+      \brief Clears interrupt service routine to call when a packet is received.
     */
-    virtual void clearDio1Action();
+    virtual void clearPacketReceivedAction();
+
+    /*!
+      \brief Sets interrupt service routine to call when a packet is sent.
+      \param func ISR to call.
+    */
+    virtual void setPacketSentAction(void (*func)(void));
+
+    /*!
+      \brief Clears interrupt service routine to call when a packet is sent.
+    */
+    virtual void clearPacketSentAction();
 
     #if defined(RADIOLIB_INTERRUPT_TIMING)