In order to receive payments in anything other than XRP, "trust" has to be extended to some other XRP Ledger account. This specifies that you are willing to have the other account "hold" your funds for later redemption.
See also:
What are issuances?
GateHub Gateways
Trust lines can be enabled and disabled. Note that setting and disabling a trust line consumes a small amount of XRP. This is called the XRP Ledger fee.
To set a trust line in a mobile app:
- Select the wallet you want to set the trust line for from the drop-down menu.
- Go to settings in the top right corner.
- Select "Wallet settings".
- Click on "Trustlines" at the bottom of the screen.
- Select the trust line you wish to enable and click "Confirm".
- Enter your 2FA code and password (if the signing key is disabled).
You may have to connect a gateway to receive access to all GateHub-supported currencies.
Each trust line set to your wallet address requires an additional 0,2 XRP owner reserve. These can be un-reserved by disabling a trust line.
To disable a trust line:
To disable a trust line for a specific currency in the chosen XRP Ledger wallet, the balance of that currency must be zero (0).
- Select the wallet you want to set the trust line for from the drop-down menu.
- Go to settings in the top right corner.
- Select "Wallet settings".
- Click on "Trustlines" at the bottom of the screen
- Select the trust line you wish to disable.
- Click "Remove", and enter your 2FA code and password (if the signing key is disabled).
Further information about gateways, trust lines, and issuances is available here.