Volume Discount Adjustments

Usage | Day | Night | Wknd
--- | --- | --- | ---
100-200 | -0.4000 | -0.4000 | -0.4000
200-500 | -0.8000 | -0.8000 | -0.8000
500+ | -1.2000 | -1.2000 | -1.2000
Add the adjustment (in ppm) to the call rate to get an effective rate for traffic over and above the 20k/month threshold

### Call Rates

- Call durations are rounded down to the nearest minute
- cnct=connection charge
- ppm=pence per minute cost/payout ex VAT (payouts are shown negative)