diff --git a/app/src/main/cpp/baresip.c b/app/src/main/cpp/baresip.c
index 7265f5cc..7bbc33e9 100644
--- a/app/src/main/cpp/baresip.c
+++ b/app/src/main/cpp/baresip.c
@@ -404,7 +404,8 @@ JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *vm, void *reserved)
 }
 
 JNIEXPORT void JNICALL Java_com_tutpro_baresip_BaresipService_baresipStart(
-        JNIEnv *env, jobject instance, jstring jPath, jstring jAddrs, jint jLogLevel)
+        JNIEnv *env, jobject instance, jstring jPath, jstring jAddrs, jint jLogLevel,
+        jstring jSoftware)
 {
     LOGI("starting baresip\n");
 
@@ -419,6 +420,7 @@ JNIEXPORT void JNICALL Java_com_tutpro_baresip_BaresipService_baresipStart(
     int err;
     const char *path = (*env)->GetStringUTFChars(env, jPath, 0);
     const char *addrs = (*env)->GetStringUTFChars(env, jAddrs, 0);
+    const char *software = (*env)->GetStringUTFChars(env, jSoftware, 0);
     struct le *le;
 
     runLoggingThread();
@@ -486,7 +488,7 @@ JNIEXPORT void JNICALL Java_com_tutpro_baresip_BaresipService_baresipStart(
 
     // net_debug_log();
 
-    err = ua_init("baresip v" BARESIP_VERSION " (" ARCH "/" OS ")", true, true, true);
+    err = ua_init(software, true, true, true);
     if (err) {
         LOGE("ua_init() failed (%d)\n", err);
         strcpy(start_error, "ua_init");
@@ -566,6 +568,10 @@ out:
             (*env)->GetMethodID(env, g_ctx.mainActivityClz, "stopped", "(Ljava/lang/String;)V");
     (*env)->CallVoidMethod(env, g_ctx.mainActivityObj, stoppedId, javaError);
     (*env)->DeleteLocalRef(env, javaError);
+
+    (*env)->ReleaseStringUTFChars(env, jPath, path);
+    (*env)->ReleaseStringUTFChars(env, jAddrs, addrs);
+    (*env)->ReleaseStringUTFChars(env, jSoftware, software);
 }
 
 JNIEXPORT void JNICALL Java_com_tutpro_baresip_BaresipService_baresipStop(
diff --git a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
index f1e62088..41912863 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
@@ -442,7 +442,13 @@ class BaresipService: Service() {
                 Log.i(TAG, "Active network: $activeNetwork")
 
                 Thread {
-                    baresipStart(filesPath, addresses.removePrefix(";"), logLevel)
+                    baresipStart(
+                        filesPath,
+                        addresses.removePrefix(";"),
+                        logLevel,
+                        "baresip v${BuildConfig.VERSION_NAME} " +
+                                "(${System.getProperty("os.arch") ?: "?"}/Android${VERSION.RELEASE})"
+                    )
                 }.start()
 
                 isServiceRunning = true
@@ -1536,7 +1542,13 @@ class BaresipService: Service() {
         }
     }
 
-    private external fun baresipStart(path: String, addresses: String, logLevel: Int)
+    private external fun baresipStart(
+        path: String,
+        addresses: String,
+        logLevel: Int,
+        software: String
+    )
+
     private external fun baresipStop(force: Boolean)
 
     companion object {