diff --git a/app/src/main/cpp/baresip.c b/app/src/main/cpp/baresip.c
index 201ea7fa..57695eac 100644
--- a/app/src/main/cpp/baresip.c
+++ b/app/src/main/cpp/baresip.c
@@ -1263,6 +1263,13 @@ Java_com_tutpro_baresip_Api_ua_1answer(JNIEnv *env, jobject thiz, jstring javaUA
     (*env)->ReleaseStringUTFChars(env, javaCall, native_call);
 }
 
+JNIEXPORT void JNICALL
+Java_com_tutpro_baresip_Api_ua_1debug(JNIEnv *env, jobject thiz, jstring javaUA) {
+    const char *native_ua = (*env)->GetStringUTFChars(env, javaUA, 0);
+    struct ua *ua = (struct ua *)strtoul(native_ua, NULL, 10);
+    ua_debug_log(ua);
+}
+
 JNIEXPORT void JNICALL
 Java_com_tutpro_baresip_Api_calls_1mute(JNIEnv *env, jobject thiz, jboolean mute) {
     struct le *ua_le;
@@ -1279,13 +1286,6 @@ Java_com_tutpro_baresip_Api_calls_1mute(JNIEnv *env, jobject thiz, jboolean mute
     re_thread_leave();
 }
 
-JNIEXPORT void JNICALL
-Java_com_tutpro_baresip_Api_ua_1debug(JNIEnv *env, jobject thiz, jstring javaUA) {
-    const char *native_ua = (*env)->GetStringUTFChars(env, javaUA, 0);
-    struct ua *ua = (struct ua *)strtoul(native_ua, NULL, 10);
-    ua_debug_log(ua);
-}
-
 JNIEXPORT jint JNICALL
 Java_com_tutpro_baresip_Call_call_1connect(JNIEnv *env, jobject thiz, jstring javaCall,
                                           jstring javaPeer) {
@@ -1331,18 +1331,6 @@ Java_com_tutpro_baresip_Call_call_1start_1audio(JNIEnv *env, jobject thiz, jstri
     (*env)->ReleaseStringUTFChars(env, javaCall, native_call);
 }
 
-JNIEXPORT void JNICALL
-Java_com_tutpro_baresip_Call_call_1stop_1audio(JNIEnv *env, jobject thiz, jstring javaCall) {
-    const char *native_call = (*env)->GetStringUTFChars(env, javaCall, 0);
-    struct call *call = (struct call *)strtoul(native_call, NULL, 10);
-    LOGD("stopping audio of call %s\n", native_call);
-    re_thread_enter();
-    struct audio *a = call_audio(call);
-    if (audio_started(a)) audio_stop(a);
-    re_thread_leave();
-    (*env)->ReleaseStringUTFChars(env, javaCall, native_call);
-}
-
 JNIEXPORT jint JNICALL
 Java_com_tutpro_baresip_Call_call_1hold(JNIEnv *env, jobject thiz, jstring javaCall) {
     const char *native_call = (*env)->GetStringUTFChars(env, javaCall, 0);
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Call.kt b/app/src/main/kotlin/com/tutpro/baresip/Call.kt
index e042706c..d8f162fe 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Call.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Call.kt
@@ -69,7 +69,6 @@ class Call(val callp: String, val ua: UserAgent, val peerUri: String, val dir: S
     private external fun call_send_digit(callp: String, digit: Char): Int
     private external fun call_notify_sipfrag(callp: String, code: Int, reason: String)
     private external fun call_start_audio(callp: String)
-    private external fun call_stop_audio(callp: String)
     private external fun call_audio_codecs(callp: String): String
     private external fun call_status(callp: String): String
     private external fun call_has_video(callp: String): Boolean