diff --git a/src/chan_alloc.c b/src/chan_alloc.c
index 4658f12..7edde6e 100644
--- a/src/chan_alloc.c
+++ b/src/chan_alloc.c
@@ -1,7 +1,7 @@
 /* GSM Channel allocation routines
  *
  * (C) 2008 by Harald Welte <laforge@gnumonks.org>
- * (C) 2008 by Holger Hans Peter Freyther <zecke@selfish.org>
+ * (C) 2008, 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
  *
  * All Rights Reserved
  *
@@ -212,6 +212,11 @@
 		return 0;
 	}
 
+	/* Assume we have GSM04.08 running and send a release */
+	if (lchan->subscr) {
+		gsm48_send_rr_release(lchan);
+	}
+
 	/* spoofed? message */
 	if (lchan->use_count < 0) {
 		DEBUGP(DRLL, "Channel count is negative: %d\n", lchan->use_count);
diff --git a/src/gsm_04_08.c b/src/gsm_04_08.c
index 2739b0b..541ff42 100644
--- a/src/gsm_04_08.c
+++ b/src/gsm_04_08.c
@@ -710,6 +710,26 @@
 	return rc;
 }
 
+/* 7.1.7 and 9.1.7 Channel release*/
+int gsm48_send_rr_release(struct gsm_lchan *lchan)
+{
+	struct msgb *msg = gsm48_msgb_alloc();
+	struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh));
+	u_int8_t *cause;
+
+	msg->lchan = lchan;
+	gh->proto_discr = GSM48_PDISC_RR;
+	gh->msg_type = GSM48_MT_RR_CHAN_REL;
+
+	cause = msgb_put(msg, 1);
+	cause[0] = GSM48_RR_CAUSE_NORMAL;
+
+	DEBUGP(DRR, "Sending Channel Release: Chan: Number: %d Type: %d\n",
+		lchan->nr, lchan->type);
+
+	return gsm48_sendmsg(msg);
+}
+
 /* Call Control */
 
 static int gsm48_cc_tx_status(struct gsm_lchan *lchan)