Index: channels/chan_dahdi.c
===================================================================
--- channels/chan_dahdi.c	(revision 156159)
+++ channels/chan_dahdi.c	(working copy)
@@ -9422,6 +9422,20 @@
 	
 }
 
+static inline void ss7_hangup_cics(struct dahdi_ss7 *linkset, int startcic, int endcic, unsigned int dpc)
+{
+	int i;
+
+	for (i = 0; i < linkset->numchans; i++) {
+		if (linkset->pvts[i] && (linkset->pvts[i]->dpc == dpc && ((linkset->pvts[i]->cic >= startcic) && (linkset->pvts[i]->cic <= endcic)))) {
+			ast_mutex_lock(&linkset->pvts[i]->lock);
+			if (linkset->pvts[i]->owner)
+				linkset->pvts[i]->owner->_softhangup |= AST_SOFTHANGUP_DEV;
+			ast_mutex_unlock(&linkset->pvts[i]->lock);
+		}
+	}
+}
+
 static inline void ss7_block_cics(struct dahdi_ss7 *linkset, int startcic, int endcic, unsigned int dpc, unsigned char state[], int block)
 {
 	int i;
@@ -9816,6 +9830,7 @@
 				p = linkset->pvts[chanpos];
 				isup_gra(ss7, e->grs.startcic, e->grs.endcic, e->grs.opc);
 				ss7_block_cics(linkset, e->grs.startcic, e->grs.endcic, e->grs.opc, NULL, 0);
+				ss7_hangup_cics(linkset, e->grs.startcic, e->grs.endcic, e->grs.opc);
 				break;
 			case ISUP_EVENT_CQM:
 				ast_debug(1, "Got Circuit group query message from CICs %d to %d\n", e->cqm.startcic, e->cqm.endcic);