u-blox TOBY-R202 and TOBY-R200 First LTE Cat 1 Modules With VoLTE Support Certified for AT&T Network

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 …
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