Hi Here's an example, I have anonymized the data and broken it up on separate lines where the internal groups and lists occur: (Inside the [] brackets there can be data or not, depending on type of transactions. This is what messes up the header_field naming) 0-0-9-1,64,xxx.xxx.x.x,28fa2342-5b1b-4605-b178-f2ec2b0b5327,20200813151737.417061,ff-14f-3fffffff-00152,,, {REGISTER,,3600,0, [sip:+4700000000@xxx.xxxxxx.xxxxxx.xxx.xxxxxxxxxxx.xxx], [sip:+4700000000@xxx.xxxxx.xxxxxx.xxx.xxxxxxxxxxx.xxx,tel:+4700000000], sip:+4700000000@xxx.xxxxxx.xxxxxx.xxx.xxxxxxxxxxx.xxx, [], 20200813151737.417083,417,20200813151742.479075,479,,0,-1,xxxx-x-xxxxx-xxx;xxxxx-xxxx-xx-xxxx=xxxxxxxxxxxxxxxx,0,xxxxxxx.xxx,,0, [], , [ [255.671.3043243843-1293344657.140,Ioi1,12345,] ]}, {[0,0,,0,0,0,0,xxxx-x-xxxxx-xxx,0], }, {1,0,,0,0,0,false}, ,,,,,,,,,,,,, {[3,2,20200813151737.419758,REGISTER,0,xx.xx.x.xx,xxx.xxx.x.xx], [3,2,20200813151742.434086,REGISTER,0,xxx.xxx.xx.xxx,xxx.xxx.xx.xxx], [3,2,20200813151742.467122,200,0,xxx.xxx.xx.xxx,xxx.xxx.xx.xxx], [3,2,20200813151742.478905,200,0,xxx.xxx.xx.xxx,xx.xx.x.xx]}\x00
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