The Cisco 2921 ISR Integrated Services Router (ISR) is a modular router featuring embedded hardware encryption, voice and video capable digital signal processor (DSP) slots
The Cisco 819 4G LTE ISRs support the latest Third-Generation Partnership Project (3GPP) Release 9 Category 3 LTE standards. They provide persistent, reliable LTE connectivity with fallback and transparent handoff to earlier technologies. The following models are available:
