ISO4217:2001 National Regional National Local/City Province Dominion Gross Receipts Absolute/fixed (no rate specified) Public Utilities Sales and Use Excise Communications Value Added Tax (VAT) Harmonized WISP or ISP or MSO Landline or Fixed CDMA GSM WISP or ISP or MSO Landline or Fixed CDMA GSM Aggregate Detailed Both Audit dateTime service geography Public WLAN Access VoIP Streaming Media Content Content Internet Access e-Mail Aggregate Detail Audit dateTime service geography Bytes Seconds Minutes Hours Days Sessions/Connections Incoming Volume Outgoing Volume Total Volume Duration Based Charge