Recordings of telephone calls may be made under the terms of article 4 (3) of Act no. 41/2004, of 21 August (as amended by Act no. 46/2012, of 21 August), which permits «legally authorised recording of communications and the related traffic data when carried out in the course of lawful business practice for the purpose of providing evidence of a commercial transaction or of any other communication made in the framework of a contractual relationship», provided the data subject has been informed and has given his/her consent…