MSC_ConnectionHandler: Fix E1 timeslots to be monotonically incrementing
diff --git a/ipa/MSC_ConnectionHandler.ttcn b/ipa/MSC_ConnectionHandler.ttcn
index 3af62a2..3cb9adb 100644
--- a/ipa/MSC_ConnectionHandler.ttcn
+++ b/ipa/MSC_ConnectionHandler.ttcn
@@ -15,8 +15,6 @@
  * There is a 1:1 mapping between SCCP connections and BSSAP_ConnHdlr components.
  * We inherit all component variables, ports, functions, ... from BSSAP_ConnHdlr */
 type component MSC_ConnHdlr extends BSSAP_ConnHdlr {
-	/* E1 timeslot that is allocated to this component/connection */
-	var uint5_t g_e1_timeslot;
 	/* SCCP Connecction Identifier for the underlying SCCP connection */
 	var integer g_sccp_conn_id;
 
@@ -36,7 +34,9 @@
 	/* connect it to the port */
 	connect(vc_conn:BSSAP, self:CLIENT);
 	/* start it */
-	vc_conn.start(MSC_ConnectionHandler.main(conn_ind.connectionId, conn_ind.connectionId));
+	vc_conn.start(MSC_ConnectionHandler.main(conn_ind.connectionId, g_next_e1_ts));
+	/* increment next E1 timeslot */
+	g_next_e1_ts := g_next_e1_ts + 1;
 	return vc_conn;
 }
 
@@ -68,14 +68,12 @@
 }
 
 /* main function processing various incoming events */
-function main(integer connection_id, integer timeslot) runs on MSC_ConnHdlr {
+function main(integer connection_id, integer e1_timeslot) runs on MSC_ConnHdlr {
 	var MgcpResponse mgcp_rsp;
 
-	g_e1_timeslot := 1; /* FIXME */
-
 	g_sccp_conn_id := connection_id;
 	g_call_id := f_mgcp_alloc_call_id();
-	g_ep_name := hex2str(int2hex(g_e1_timeslot, 1)) & "@mgw";
+	g_ep_name := hex2str(int2hex(e1_timeslot, 1)) & "@mgw";
 
 	while (true) {
 		var PDU_BSSAP bssap;
@@ -84,7 +82,7 @@
 		[g_state == MSC_STATE_NONE] BSSAP.receive(tr_BSSMAP_ComplL3) -> value bssap {
 			/* respond with ASSIGNMENT CMD  */
 			g_state := MSC_STATE_WAIT_ASS_COMPL;
-			BSSAP.send(ts_BSSMAP_AssignmentReq(0, g_e1_timeslot));
+			BSSAP.send(ts_BSSMAP_AssignmentReq(0, e1_timeslot));
 			}
 		[g_state == MSC_STATE_WAIT_ASS_COMPL] BSSAP.receive(tr_BSSMAP_AssignmentComplete) {
 			/* FIXME: Send MGCP CRCX */