Os na allwch siarad yn ddiogel, ond bod arnoch angen help ar unwaith, bydd heddluoedd ledled Cymru’n ymateb i alwad 999 dawel – deialwch 999 ac wedyn 55 i ddangos nad ydych chi’n gallu siarad, ond bod arnoch angen help.
If you can’t talk in safety, but you need help immediately, police forces across Wales will respond to a silent 999 call – dial 999 followed by 55 to indicate that you can’t talk, but need help.