USSD and SMS signature bundles can be purchased separately from the Impression license options to enable signing over those channels.
SMS is globally available and Network Initiated and Customer Initiated USSD are available in only certain regions:
- South Africa (NI, CI USSD)
- Namibia (NI, CI USSD)
- Lesotho (CI USSD)
- Burundi (CI USSD)
- Zimbabwe (CI USSD)
- Kenya (NI USSD)
Sim swap detection can also be purchased separately which determines whether a sim card has been recently cloned and can be trusted for a particular transaction.