/*! \brief  expire_register: Expire registration of SIP peer ---*/
static int expire_register(void *data)
{
        struct sip_peer *peer = data;

        memset(&peer->addr, 0, sizeof(peer->addr));

        destroy_association(peer);

        ast_log(LOG_NOTICE, "Expiring SIP '%s'\n", p->name);

        manager_event(EVENT_FLAG_SYSTEM, "PeerStatus", "Peer: SIP/%s\r\nPeerStatus: Unregistered\r\nCause: Expired\r\n", peer->name);
        register_peer_exten(peer, 0);
        peer->expire = -1;
        ast_device_state_changed("SIP/%s", peer->name);
        if (ast_test_flag(peer, SIP_SELFDESTRUCT) || ast_test_flag((&peer->flags_page2), SIP_PAGE2_RTAUTOCLEAR)) {
                peer = ASTOBJ_CONTAINER_UNLINK(&peerl, peer);
                ASTOBJ_UNREF(peer, sip_destroy_peer);
        }

        return 0;
}