diff --git a/CallCapture/CallCapture.cpp b/CallCapture/CallCapture.cpp
index 888a63e..c82befa 100644
--- a/CallCapture/CallCapture.cpp
+++ b/CallCapture/CallCapture.cpp
@@ -9,6 +9,7 @@
 
 #define VECTORS_COUNT        8
 #define DEFAULT_USER_NUMBER  1
+#define DEFAULT_LINK_NUMBER  10
 
 int main(int argc, const char* argv[])
 {
@@ -25,6 +26,7 @@ int main(int argc, const char* argv[])
     { "connection", required_argument, NULL, 'c' },
     { "identity",   required_argument, NULL, 'i' },
     { "network",    required_argument, NULL, 'n' },
+    { "unknown",    required_argument, NULL, 'u' },
     { "link",       required_argument, NULL, 'l' },
     { NULL,         0,                 NULL, 0   }
   };
@@ -32,13 +34,14 @@ int main(int argc, const char* argv[])
   pcre* expression = NULL;
   const char* file = NULL;
   uint32_t network = 0;
-  uint32_t link = 10;
+  uint32_t unknown = DEFAULT_USER_NUMBER;
+  uint32_t link = DEFAULT_LINK_NUMBER;
 
   int position = 0;
   const char* error = NULL;
 
   int selection = 0;
-  while ((selection = getopt_long(argc, const_cast<char* const*>(argv), "e:c:n:l:", options, NULL)) != EOF)
+  while ((selection = getopt_long(argc, const_cast<char* const*>(argv), "e:c:u:n:l:", options, NULL)) != EOF)
     switch (selection)
     {
       case 'e':
@@ -53,6 +56,10 @@ int main(int argc, const char* argv[])
         openlog(optarg, 0, LOG_USER);
         break;
 
+      case 'u':
+        unknown = atoi(optarg);
+        break;
+
       case 'n':
         network = atoi(optarg);
         break;
@@ -77,6 +84,7 @@ int main(int argc, const char* argv[])
       "Usage: %s"
       " --expression <regular expression>"
       " --connection <path to configuration file>"
+      " [--unknown <ID for unknown call-signs>]"
       " --network <network number>"
       " --link <link number>"
       " [--identity <identity>]"
@@ -107,7 +115,7 @@ int main(int argc, const char* argv[])
 
       uint32_t number = store.getPrivateIDForCall(call);
       if (number == 0)
-        number = DEFAULT_USER_NUMBER;
+        number = unknown;
       proxy.setTalkerID(number);
       syslog(LOG_INFO, "*** Found call-sign: %s (ID: %d)", call, number);
 
diff --git a/SVXLink/echolink/BrandMeisterBridge.cpp b/SVXLink/echolink/BrandMeisterBridge.cpp
index 20e04e9..335a873 100644
--- a/SVXLink/echolink/BrandMeisterBridge.cpp
+++ b/SVXLink/echolink/BrandMeisterBridge.cpp
@@ -18,6 +18,7 @@ BrandMeisterBridge::BrandMeisterBridge()
   proxy = NULL;
   store = NULL;
   talker = NULL;
+  unknown = ECHOLINK_DEFAULT_USER_NUMBER;
 }
 
 BrandMeisterBridge::~BrandMeisterBridge()
@@ -29,6 +30,11 @@ BrandMeisterBridge::~BrandMeisterBridge()
 
 // Interface methods for ModuleEchoLink
 
+void BrandMeisterBridge::setDefaultConfiguration(const char* configuration)
+{
+  unknown = strtol(configuration, NULL, 10);
+}
+
 void BrandMeisterBridge::setProxyConfiguration(const char* configuration)
 {
   char* pointer = const_cast<char*>(configuration);
@@ -95,7 +101,7 @@ void BrandMeisterBridge::setTalker(const char* call, const char* name)
 
   uint32_t number = store->getPrivateIDForCall(call);
   if (number == 0)
-    number = ECHOLINK_DEFAULT_USER_NUMBER;
+    number = unknown;
 
   syslog(LOG_INFO, "Set talker ID to %d for call-sign %s", number, call);
   proxy->setTalkerID(number);
@@ -125,9 +131,8 @@ void BrandMeisterBridge::handleChatMessage(const char* text)
     }
     else
     {
-      uint32_t number = ECHOLINK_DEFAULT_USER_NUMBER;
-      syslog(LOG_INFO, "Set talker ID to %d (call-sign was not fit into chat message)", number);
-      proxy->setTalkerID(number);
+      syslog(LOG_INFO, "Set talker ID to %d (call-sign was not fit into chat message)", unknown);
+      proxy->setTalkerID(unknown);
     }
   }
 }
diff --git a/SVXLink/echolink/BrandMeisterBridge.h b/SVXLink/echolink/BrandMeisterBridge.h
index 2c12442..da9a82d 100644
--- a/SVXLink/echolink/BrandMeisterBridge.h
+++ b/SVXLink/echolink/BrandMeisterBridge.h
@@ -13,6 +13,7 @@ class BrandMeisterBridge
     BrandMeisterBridge();
     ~BrandMeisterBridge();
 
+    void setDefaultConfiguration(const char* configuration);
     void setProxyConfiguration(const char* configuration);
     void setStoreConfiguration(const char* configuration);
 
@@ -25,6 +26,7 @@ class BrandMeisterBridge
     PatchCordProxy* proxy;
     UserDataStore* store;
     char* talker;
+    int unknown;
 
 };