diff --git a/core/AmDtmfDetector.cpp b/core/AmDtmfDetector.cpp
index 0116b308..44350173 100644
--- a/core/AmDtmfDetector.cpp
+++ b/core/AmDtmfDetector.cpp
@@ -651,10 +651,17 @@ int AmSpanDSPInbandDtmfDetector::streamPut(const unsigned char* samples, unsigne
   return size;
 }
 
+#ifndef HAVE_OLD_SPANDSP_CALLBACK
 void AmSpanDSPInbandDtmfDetector::tone_report_func(void *user_data, int code, int level, int delay) {
   AmSpanDSPInbandDtmfDetector* o = (AmSpanDSPInbandDtmfDetector*)user_data;
   o->tone_report_f(code, level, delay);
 }
+#else
+void AmSpanDSPInbandDtmfDetector::tone_report_func(void *user_data, int code) {
+  AmSpanDSPInbandDtmfDetector* o = (AmSpanDSPInbandDtmfDetector*)user_data;
+  o->tone_report_f(code, 0, 0);
+}
+#endif
 
 void AmSpanDSPInbandDtmfDetector::tone_report_f(int code, int level, int delay) {
   //  DBG("spandsp reports tone %c, %d, %d\n", code, level, delay);
diff --git a/core/AmDtmfDetector.h b/core/AmDtmfDetector.h
index b1fda569..f263098c 100644
--- a/core/AmDtmfDetector.h
+++ b/core/AmDtmfDetector.h
@@ -269,7 +269,12 @@ class AmSpanDSPInbandDtmfDetector
   int m_lastCode;
   dtmf_rx_state_t rx_state;
 
-  static void tone_report_func(void *user_data, int code, int level, int delay);
+  static void tone_report_func(void *user_data, int code
+#ifndef HAVE_OLD_SPANDSP_CALLBACK
+			       , int level, int delay
+#endif
+			       );
+
   void tone_report_f(int code, int level, int delay);
   int char2int(char code);  
 /*   static void dtmf_rx_callback(void* user_data, const char* digits, int len);  */