The first 4G LTE sunset announcements are expected after 2030 , which means that companies can safely invest in 4G-based IoT solutions today and for the foreseeable future.
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AT&T 3G Sunset Impact on 4G Devices AT&T has announced their 3G (UMTS/HSPA) network sunset is planned for February 2022 . Replacement 4G/LTE voice-capable cellular modules, integrated into many brands/vendors of cellular products including MultiTech, are configured for voice-centric signaling by default.
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