<prompt> Yakha inguqulo eyinkimbinkimbi yalesi sigwebo Namuhla i-Federal Signals Q2B siren isasetshenziswa kabanzi Iningi labasebenzisi be-Q Siren yizingxenye zomlilo.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yalesi sigwebo ithi Namuhla i - Q2B siren ye - Federal Signal isasetshenziswa kabanzi Iningi labasebenzisi be - Q Siren iminyango yezicishamlilo, nakuba amanye ama - ambulensi namaqembu asindayo okusindisa aye asebenzisa i - Q - siren ngenxa yomsindo wayo owaziwayo. 