Both cellular modules operate on LTE bands 2, 4, 5 and 12. In addition to VoLTE, they also feature voice support via circuit switched fallback (CSFB) for legacy 2G and / or 3G networks in areas where LTE is not available. TOBY-R202 provides fallback on 3G bands 2 and 5, while TOBY-R200 provides global 2G and 3G fallback.
Voice is key to IoT applications that require command, control and alert functionality. VoLTE provides voice capability on LTE modules, enabling devices of the IoT and their users to easily communicate verbally over the LTE network. The devices come in a compact 24.8 x 35.6 mm form factor. Thanks to u-blox nested design, migration between the TOBY-R2 modules and other u-blox 2G, 3G and 4G modules is easy, while enabling future-proof, seamless mechanical scalability across technologies.