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Rating can be great fun. US taxes (geocoding, urgh) are an absolute nightmare. Reversed charged calls, revenue sharing. Roaming is a pain (ASN.1 files). Even do
by trollied 3y ago
Rating can be great fun. US taxes (geocoding, urgh) are an absolute nightmare. Reversed charged calls, revenue sharing. Roaming is a pain (ASN.1 files). Even document numbering is a nightmare in some countries, as are legalities surrounding incorrect bills (corrective invoices) and crediting. Did 15 years in billing (now do finance software), and whenever I thought I knew it all there would be another curve ball thrown.