--- q931.c 2006-01-17 08:43:18.000000000 -0500 +++ ../../libpri-1.2.2/q931.c 2006-03-31 09:12:01.000000000 -0500 @@ -1057,7 +1057,7 @@ static FUNC_SEND(transmit_display) { int i; - if ((pri->switchtype != PRI_SWITCH_NI1) && (pri->switchtype != PRI_SWITCH_QSIG) + if ((pri->switchtype != PRI_SWITCH_QSIG) && *call->callername) { i = 0; if(pri->switchtype != PRI_SWITCH_EUROISDN_E1) {