GSM (2G) established global roaming with SIM cards and four main radio bands. Today LTE and 5G carry most traffic and many operators are retiring 2G/3G, so check device bands, unlocking, and carrier support before travel.
Unlocked phones still matter for travelers: they let you use local SIMs or eSIMs abroad, but compatibility today depends on supported LTE/5G bands and carrier policies rather than the older 2G GSM standard.
Luxury bath towels combine long-staple fibers, denser construction, and careful finishing to deliver greater softness, absorbency, and longevity. Look for fiber type, GSM, and certifications when choosing a premium towel.
Unlocked phones still matter for travel. In 2025, check network bands and eSIM support as well as unlock status so your device works where you need it.
Cingular Wireless built a strong reputation in the 2000s for GSM-based compatibility and international roaming. The brand was rebranded into AT&T Mobility in 2007, and its legacy continues in today's LTE/5G networks and roaming services.