diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index 6457868..ebe6de9 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -232,3 +232,6 @@ Henrik Niehaus
 
 Guy Martin
   for adding SVDRP commands to list and disconnect clients
+
+Martin1234
+  for suggesting a service call, returning the number of clients
diff --git a/HISTORY b/HISTORY
index df58351..2d75055 100644
--- a/HISTORY
+++ b/HISTORY
@@ -1,6 +1,7 @@
 VDR Plugin 'streamdev' Revision History
 ---------------------------------------
  
+- added service call returning the number of clients (suggested by Martin1234)
 - added SVDRP commands to list and disconnect clients (thanks to Guy Martin)
 - fixed recplayer issues with large TS files (>4GB)
 - Don't abort externremux when internal read buffer is empty
diff --git a/server/streamdev-server.c b/server/streamdev-server.c
index e1475da..33d08a5 100644
--- a/server/streamdev-server.c
+++ b/server/streamdev-server.c
@@ -243,4 +243,17 @@ cString cPluginStreamdevServer::SVDRPCommand(const char *Command, const char *Op
 	return reply;
 }
 
+bool cPluginStreamdevServer::Service(const char *Id, void *Data)
+{
+	if (strcmp(Id, "StreamdevServer::ClientCount-v1.0") == 0) {
+		if (Data) {
+			int *count = (int *) Data;
+			cThreadLock lock;
+			*count = cStreamdevServer::Clients(lock).Count();
+		}
+		return true;
+	}
+	return false;
+}
+
 VDRPLUGINCREATOR(cPluginStreamdevServer); // Don't touch this!
diff --git a/server/streamdev-server.h b/server/streamdev-server.h
index 0d588fc..4654e26 100644
--- a/server/streamdev-server.h
+++ b/server/streamdev-server.h
@@ -46,6 +46,7 @@ public:
 	virtual bool SetupParse(const char *Name, const char *Value);
 	virtual const char **SVDRPHelpPages(void);
 	virtual cString SVDRPCommand(const char *Command, const char *Option, int &ReplyCode);
+	virtual bool Service(const char *Id, void *Data = NULL);
 };
 
 #endif // VDR_STREAMDEVSERVER_H