--- chan_zap.c.orig     2005-09-07 21:00:09.000000000 +0200
+++ chan_zap.c  2005-09-07 21:09:06.000000000 +0200
@@ -3391,6 +3391,7 @@
                                        if (!pri_grab(p, p->pri)) {
                                                pri_hangup(p->pri->pri, p->call, -1);
                                                pri_destroycall(p->pri->pri, p->call);
+                                               p->call = NULL;
                                                pri_rel(p->pri);
                                        } else
                                                ast_log(LOG_WARNING, "Failed to grab PRI!\n");
@@ -3399,7 +3400,6 @@
                        }
                        if (p->owner)
                                p->owner->_softhangup |= AST_SOFTHANGUP_DEV;
-                       p->call = NULL;
                        if (p->bearer)
                                p->bearer->inalarm = 1;
                        else