> ## Documentation Index
> Fetch the complete documentation index at: https://devs.elementpay.net/llms.txt
> Use this file to discover all available pages before exploring further.

# Onramp vs offramp

**On-ramp (0)**: User pays fiat (e.g., STK on PHONE) → receives tokens at `user_address`.\
**Off-ramp (1)**: User spends tokens → receives fiat payout to PHONE/TILL/PAYBILL.

* PHONE works for both; TILL/PAYBILL are **off-ramp only**.
* Allowance required for off-ramp token spending.