EV_L2_MDL_ASSIGN
{ST_L2_1, EV_L2_MDL_ASSIGN, l2_got_tei},
{ST_L2_2, EV_L2_MDL_ASSIGN, l2_got_tei},
{ST_L2_3, EV_L2_MDL_ASSIGN, l2_got_tei},
ret = mISDN_FsmEvent(&l2->l2m, EV_L2_MDL_ASSIGN, (void *)arg);