diff --git a/src/TypeDef.h b/src/TypeDef.h
index e2d8c914..50173814 100644
--- a/src/TypeDef.h
+++ b/src/TypeDef.h
@@ -63,6 +63,31 @@
   \}
 */
 
+/*!
+  \defgroup config_standby Standby mode type aliases.
+
+  \{
+*/
+
+/*!
+  \brief Default standby used by the module
+*/
+#define RADIOLIB_STANDBY_DEFAULT                                (0x00)
+
+/*!
+  \brief Warm standby (e.g. crystal left running).
+*/
+#define RADIOLIB_STANDBY_WARM                                   (0x01)
+
+/*!
+  \brief Cold standby (e.g. only internal RC oscillator running).
+*/
+#define RADIOLIB_STANDBY_COLD                                   (0x02)
+
+/*!
+  \}
+*/
+
 /*!
   \defgroup status_codes Status Codes
 
diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.cpp b/src/protocols/PhysicalLayer/PhysicalLayer.cpp
index 7d45f9e0..48704bee 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.cpp
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.cpp
@@ -111,6 +111,10 @@ int16_t PhysicalLayer::receive(uint8_t* data, size_t len) {
 }
 
 int16_t PhysicalLayer::standby() {
+  return(standby(RADIOLIB_STANDBY_DEFAULT));
+}
+
+int16_t PhysicalLayer::standby(uint8_t mode) {
   return(RADIOLIB_ERR_UNSUPPORTED);
 }
 
diff --git a/src/protocols/PhysicalLayer/PhysicalLayer.h b/src/protocols/PhysicalLayer/PhysicalLayer.h
index a5886f53..aad936f8 100644
--- a/src/protocols/PhysicalLayer/PhysicalLayer.h
+++ b/src/protocols/PhysicalLayer/PhysicalLayer.h
@@ -91,6 +91,13 @@ class PhysicalLayer {
     */
     virtual int16_t standby();
 
+    /*!
+      \brief Sets module to a specific standby mode.
+
+      \returns \ref status_codes
+    */
+    virtual int16_t standby(uint8_t mode);
+
     /*!
       \brief Binary receive method. Must be implemented in module class.