Validity time of vouchers doesn't combine, except for 30-day extensions.
Airtime burn rates
Outbound calls to
Fixed phones (landlines)
ISatPhone / ISatPhone Pro
BGAN, FBB and SBB
Text Message / SMS
Other MSS Carriers
Inmarsat GAN/Fleet/Swift (voice)
Incoming calls & messages
Minimum Call Duration: 30 sec
Billing Increment: 15 sec
Voice rates apply to 2.4kbps data
On Aug 1, 2019 Inmarsat increased 'burn rates' for all types of services for all IsatPhone prepaid accounts.
IMPORTANT! Please read!
Please make sure that you place your order for a new voucher at least three (3) business days before your account's current expiration date. We do not guarantee timely recharge for vouchers ordered less than three business days before the expiration date.
All unused minutes on your existing Inmarsat prepaid account will be preserved and carried over ONLY if the new voucher is applied to your account BEFORE the expiration date of the current voucher.
You can purchase a prepaid voucher only if you have an Inmarsat prepaid SIM-card from SATTRANS. We cannot reload minutes on other providers' SIM-cards. If you don't have an account with Sattrans, you can purchase a new IsatPhone Prepaid Plan.