diff --git a/src/protocols/Pager/Pager.cpp b/src/protocols/Pager/Pager.cpp
index 8509e9bc..905778ed 100644
--- a/src/protocols/Pager/Pager.cpp
+++ b/src/protocols/Pager/Pager.cpp
@@ -67,10 +67,10 @@ int16_t PagerClient::transmit(String& str, uint32_t addr, uint8_t encoding, uint
 #endif
 
 int16_t PagerClient::transmit(const char* str, uint32_t addr, uint8_t encoding, uint8_t function) {
-  return(PagerClient::transmit((uint8_t*)str, strlen(str), addr, encoding, function));
+  return(PagerClient::transmit(reinterpret_cast<uint8_t*>(const_cast<char*>(str)), strlen(str), addr, encoding, function));
 }
 
-int16_t PagerClient::transmit(uint8_t* data, size_t len, uint32_t addr, uint8_t encoding, uint8_t function) {
+int16_t PagerClient::transmit(const uint8_t* data, size_t len, uint32_t addr, uint8_t encoding, uint8_t function) {
   if(addr > RADIOLIB_PAGER_ADDRESS_MAX) {
     return(RADIOLIB_ERR_INVALID_ADDRESS_WIDTH);
   }
@@ -326,14 +326,14 @@ int16_t PagerClient::readData(String& str, size_t len, uint32_t* addr) {
     // check tone-only transmissions
     if(length == 0) {
       length = 6;
-      strncpy((char*)data, "<tone>", length + 1);
+      strncpy(reinterpret_cast<char*>(data), "<tone>", length + 1);
     }
 
     // add null terminator
     data[length] = 0;
 
     // initialize Arduino String class
-    str = String((char*)data);
+    str = String(reinterpret_cast<char*>(data));
   }
 
   // deallocate temporary buffer
@@ -494,7 +494,7 @@ bool PagerClient::addressMatched(uint32_t addr) {
   return(false);
 }
 
-void PagerClient::write(uint32_t* data, size_t len) {
+void PagerClient::write(const uint32_t* data, size_t len) {
   // write code words from buffer
   for(size_t i = 0; i < len; i++) {
     RADIOLIB_DEBUG_PROTOCOL_PRINTLN("POCSAG W\t%lu\t%08lX", (long unsigned int)i, (long unsigned int)data[i]);
diff --git a/src/protocols/Pager/Pager.h b/src/protocols/Pager/Pager.h
index 6963a686..4de46347 100644
--- a/src/protocols/Pager/Pager.h
+++ b/src/protocols/Pager/Pager.h
@@ -117,7 +117,7 @@ class PagerClient {
       \param function bits (NUMERIC, TONE, ACTIVATION, ALPHANUMERIC). Allowed values 0 to 3. Defaults to auto select by specified encoding
       \returns \ref status_codes
     */
-    int16_t transmit(uint8_t* data, size_t len, uint32_t addr, uint8_t encoding = RADIOLIB_PAGER_BCD, uint8_t function = RADIOLIB_PAGER_FUNC_AUTO);
+    int16_t transmit(const uint8_t* data, size_t len, uint32_t addr, uint8_t encoding = RADIOLIB_PAGER_BCD, uint8_t function = RADIOLIB_PAGER_FUNC_AUTO);
 
     #if !RADIOLIB_EXCLUDE_DIRECT_RECEIVE
     /*!
@@ -190,7 +190,7 @@ class PagerClient {
     size_t filterNumAddresses = 0;
     bool inv = false;
 
-    void write(uint32_t* data, size_t len);
+    void write(const uint32_t* data, size_t len);
     void write(uint32_t codeWord);
     int16_t startReceiveCommon();
     bool addressMatched(uint32_t addr);