SMS Authentication Module
For operators who have not yet adopted 802.1X, the optional Short Message Service (SMS) module can be leveraged to authenticate hotspot users to the network and deliver services based on out-of-band delivery of a secure one-time password via the Short Message Service (SMS) text messaging protocol. This optional module provides mobile service providers the ability to bill mobile subscribers for wireless hotspot Internet access. Billing integration is provided through RADIUS accounting and Call Detail Record (CDR) generation to enable unified billing.