diff -urN asterisk-1.2.0.bkp/asterisk.c asterisk-1.2.0/asterisk.c
--- asterisk-1.2.0.bkp/asterisk.c	2005-11-14 20:00:38.000000000 +0100
+++ asterisk-1.2.0/asterisk.c	2005-11-22 15:13:05.000000000 +0100
@@ -215,6 +215,7 @@
 char ast_config_AST_CTL_OWNER[AST_CONFIG_MAX_PATH] = "\0";
 char ast_config_AST_CTL_GROUP[AST_CONFIG_MAX_PATH] = "\0";
 char ast_config_AST_CTL[AST_CONFIG_MAX_PATH] = "asterisk.ctl";
+char ast_config_AST_SYSTEM_NAME[20]="";
 
 static char *_argv[256];
 static int shuttingdown = 0;
@@ -1908,6 +1909,8 @@
 		/* What group to run as */
 		} else if (!strcasecmp(v->name, "rungroup")) {
 			ast_copy_string(ast_config_AST_RUN_GROUP, v->value, sizeof(ast_config_AST_RUN_GROUP));
+		} else if (!strcasecmp(v->name, "systemname")) {
+		  strncpy(ast_config_AST_SYSTEM_NAME,v->value,sizeof(ast_config_AST_SYSTEM_NAME));
 		}
 		v = v->next;
 	}
diff -urN asterisk-1.2.0.bkp/channel.c asterisk-1.2.0/channel.c
--- asterisk-1.2.0.bkp/channel.c	2005-11-16 19:11:28.000000000 +0100
+++ asterisk-1.2.0/channel.c	2005-11-22 15:12:47.000000000 +0100
@@ -583,7 +583,10 @@
 	tmp->data = NULL;
 	tmp->fin = global_fin;
 	tmp->fout = global_fout;
-	snprintf(tmp->uniqueid, sizeof(tmp->uniqueid), "%li.%d", (long) time(NULL), uniqueint++);
+	if (*ast_config_AST_SYSTEM_NAME)
+	  snprintf(tmp->uniqueid, sizeof(tmp->uniqueid), "%s-%li.%d", ast_config_AST_SYSTEM_NAME, (long) time(NULL), uniqueint++);
+	else
+	  snprintf(tmp->uniqueid, sizeof(tmp->uniqueid), "%li.%d", (long) time(NULL), uniqueint++);
 	headp = &tmp->varshead;
 	ast_mutex_init(&tmp->lock);
 	AST_LIST_HEAD_INIT_NOLOCK(headp);
diff -urN asterisk-1.2.0.bkp/include/asterisk.h asterisk-1.2.0/include/asterisk.h
--- asterisk-1.2.0.bkp/include/asterisk.h	2005-11-08 02:29:14.000000000 +0100
+++ asterisk-1.2.0/include/asterisk.h	2005-11-22 15:13:05.000000000 +0100
@@ -40,6 +40,7 @@
 extern char ast_config_AST_CTL_OWNER[AST_CONFIG_MAX_PATH];
 extern char ast_config_AST_CTL_GROUP[AST_CONFIG_MAX_PATH];
 extern char ast_config_AST_CTL[AST_CONFIG_MAX_PATH];
+extern char ast_config_AST_SYSTEM_NAME[20];
 
 /* Provided by asterisk.c */
 int ast_set_priority(int);
diff -urN asterisk-1.2.0.bkp/pbx.c asterisk-1.2.0/pbx.c
--- asterisk-1.2.0.bkp/pbx.c	2005-11-14 20:00:38.000000000 +0100
+++ asterisk-1.2.0/pbx.c	2005-11-22 17:38:32.000000000 +0100
@@ -1121,6 +1121,9 @@
 	} else if (c && !strcmp(var, "LANGUAGE")) {
 		ast_copy_string(workspace, c->language, workspacelen);
 		*ret = workspace;
+	} else if (c && !strcmp(var, "SYSTEMNAME")) {
+		ast_copy_string(workspace, ast_config_AST_SYSTEM_NAME, workspacelen);
+		*ret = workspace;
 	} else {
 icky:
 		if (headp) {