diff --git a/examples/onvif_client/README.md b/examples/onvif_client/README.md
new file mode 100644
index 00000000..b4ae3383
--- /dev/null
+++ b/examples/onvif_client/README.md
@@ -0,0 +1,5 @@
+## Example
+
+```shell
+go run examples/onvif_client/main.go http://admin:password@192.168.10.90 GetAudioEncoderConfigurations
+```
\ No newline at end of file
diff --git a/examples/onvif_client/main.go b/examples/onvif_client/main.go
index 03dd12ba..724d3252 100644
--- a/examples/onvif_client/main.go
+++ b/examples/onvif_client/main.go
@@ -2,7 +2,6 @@ package main
 
 import (
 	"log"
-	"net"
 	"net/url"
 	"os"
 
@@ -41,7 +40,13 @@ func main() {
 		onvif.DeviceGetSystemDateAndTime,
 		onvif.DeviceSystemReboot:
 		b, err = client.DeviceRequest(operation)
-	case onvif.MediaGetProfiles, onvif.MediaGetVideoSources:
+	case onvif.MediaGetProfiles,
+		onvif.MediaGetVideoEncoderConfigurations,
+		onvif.MediaGetVideoSources,
+		onvif.MediaGetVideoSourceConfigurations,
+		onvif.MediaGetAudioEncoderConfigurations,
+		onvif.MediaGetAudioSources,
+		onvif.MediaGetAudioSourceConfigurations:
 		b, err = client.MediaRequest(operation)
 	case onvif.MediaGetProfile:
 		b, err = client.GetProfile(token)
@@ -64,9 +69,7 @@ func main() {
 		log.Fatal(err)
 	}
 
-	host, _, _ := net.SplitHostPort(u.Host)
-
-	if err = os.WriteFile(host+"_"+operation+".xml", b, 0644); err != nil {
+	if err = os.WriteFile(u.Hostname()+"_"+operation+".xml", b, 0644); err != nil {
 		log.Printf("%s\n", err)
 	}
 }
diff --git a/internal/onvif/onvif.go b/internal/onvif/onvif.go
index 0d0319a7..6dfa633a 100644
--- a/internal/onvif/onvif.go
+++ b/internal/onvif/onvif.go
@@ -72,7 +72,11 @@ func onvifDeviceService(w http.ResponseWriter, r *http.Request) {
 		onvif.DeviceGetNetworkDefaultGateway,
 		onvif.DeviceGetNetworkProtocols,
 		onvif.DeviceGetNTP,
-		onvif.DeviceGetScopes:
+		onvif.DeviceGetScopes,
+		onvif.MediaGetVideoEncoderConfigurations,
+		onvif.MediaGetAudioEncoderConfigurations,
+		onvif.MediaGetAudioSources,
+		onvif.MediaGetAudioSourceConfigurations:
 		b = onvif.StaticResponse(operation)
 
 	case onvif.DeviceGetCapabilities:
@@ -109,6 +113,10 @@ func onvifDeviceService(w http.ResponseWriter, r *http.Request) {
 		token := onvif.FindTagValue(b, "ProfileToken")
 		b = onvif.GetProfileResponse(token)
 
+	case onvif.MediaGetVideoSourceConfigurations:
+		// important for Happytime Onvif Client
+		b = onvif.GetVideoSourceConfigurationsResponse(streams.GetAllNames())
+
 	case onvif.MediaGetVideoSourceConfiguration:
 		token := onvif.FindTagValue(b, "ConfigurationToken")
 		b = onvif.GetVideoSourceConfigurationResponse(token)
@@ -129,6 +137,7 @@ func onvifDeviceService(w http.ResponseWriter, r *http.Request) {
 
 	default:
 		http.Error(w, "unsupported operation", http.StatusBadRequest)
+		log.Warn().Msgf("[onvif] unsupported operation: %s", operation)
 		log.Debug().Msgf("[onvif] unsupported request:\n%s", b)
 		return
 	}
diff --git a/pkg/onvif/server.go b/pkg/onvif/server.go
index db0bb2fb..54272798 100644
--- a/pkg/onvif/server.go
+++ b/pkg/onvif/server.go
@@ -179,18 +179,35 @@ func appendProfile(e *Envelope, tag, name string) {
 `)
 }
 
+func GetVideoSourceConfigurationsResponse(names []string) []byte {
+	e := NewEnvelope()
+	e.Append(`<trt:GetVideoSourceConfigurationsResponse>
+`)
+	for _, name := range names {
+		appendProfile(e, "Configurations", name)
+	}
+	e.Append(`</trt:GetVideoSourceConfigurationsResponse>`)
+	return e.Bytes()
+}
+
 func GetVideoSourceConfigurationResponse(name string) []byte {
 	e := NewEnvelope()
 	e.Append(`<trt:GetVideoSourceConfigurationResponse>
-	<trt:Configuration token="`, name, `">
-		<tt:Name>VSC</tt:Name>
-		<tt:SourceToken>`, name, `</tt:SourceToken>
-		<tt:Bounds x="0" y="0" width="1920" height="1080"></tt:Bounds>
-	</trt:Configuration>
-</trt:GetVideoSourceConfigurationResponse>`)
+`)
+	appendVideoSourceConfiguration(e, "Configuration", name)
+	e.Append(`</trt:GetVideoSourceConfigurationResponse>`)
 	return e.Bytes()
 }
 
+func appendVideoSourceConfiguration(e *Envelope, tag, name string) {
+	e.Append(`<trt:`, tag, ` token="`, name, `" fixed="true">
+	<tt:Name>VSC</tt:Name>
+	<tt:SourceToken>`, name, `</tt:SourceToken>
+	<tt:Bounds x="0" y="0" width="1920" height="1080"></tt:Bounds>
+</trt:`, tag, `>
+`)
+}
+
 func GetVideoSourcesResponse(names []string) []byte {
 	e := NewEnvelope()
 	e.Append(`<trt:GetVideoSourcesResponse>
@@ -226,11 +243,7 @@ func StaticResponse(operation string) []byte {
 
 	e := NewEnvelope()
 	e.Append(responses[operation])
-	b := e.Bytes()
-	if operation == DeviceGetNetworkInterfaces {
-		println()
-	}
-	return b
+	return e.Bytes()
 }
 
 var responses = map[string]string{
@@ -249,4 +262,17 @@ var responses = map[string]string{
 	<tds:Scopes><tt:ScopeDef>Fixed</tt:ScopeDef><tt:ScopeItem>onvif://www.onvif.org/Profile/Streaming</tt:ScopeItem></tds:Scopes>
 	<tds:Scopes><tt:ScopeDef>Fixed</tt:ScopeDef><tt:ScopeItem>onvif://www.onvif.org/type/Network_Video_Transmitter</tt:ScopeItem></tds:Scopes>
 </tds:GetScopesResponse>`,
+
+	MediaGetVideoEncoderConfigurations: `<trt:GetVideoEncoderConfigurationsResponse>
+	<tt:VideoEncoderConfiguration token="vec">
+		<tt:Name>VEC</tt:Name>
+		<tt:Encoding>H264</tt:Encoding>
+		<tt:Resolution><tt:Width>1920</tt:Width><tt:Height>1080</tt:Height></tt:Resolution>
+		<tt:RateControl />
+	</tt:VideoEncoderConfiguration>
+</trt:GetVideoEncoderConfigurationsResponse>`,
+
+	MediaGetAudioEncoderConfigurations: `<trt:GetAudioEncoderConfigurationsResponse />`,
+	MediaGetAudioSources:               `<trt:GetAudioSourcesResponse />`,
+	MediaGetAudioSourceConfigurations:  `<trt:GetAudioSourceConfigurationsResponse />`,
 }