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GSMA v1.2

SGP.32 Blog

Tagged: Roaming SIM

SGP32.co.uk / Tagged: Roaming SIM
eSIM Switching 19 June 2026

Multi-Network IoT SIM Cards Are Not a Magic Bullet: Why Reliable M2M Connectivity Needs More Than Roaming

Multi-network IoT SIM cards are often sold as the answer to reliable M2M connectivity. The idea sounds simple: if one mobile network has poor coverage or goes down,...

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euicc.co.uk

The UK authority on eSIM and eUICC - consumer, M2M and IoT standards explained

IoTPortal IoTSims Visit euicc.co.uk
SGP.32

UK reference for the GSMA SGP.32 IoT eSIM standard. Architecture, hardware, networks and implementation explained.

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The Standard

  • What is SGP.32?
  • Architecture
  • vs SGP.02 vs SGP.22
  • IPA-e vs IPA-d
  • eIM Portability
  • Glossary

Hardware and Networks

  • eSIM Hardware Guide
  • How OEMs Add eSIM
  • MNO, MVNO and Resellers
  • Bootstrap Providers
  • Teltonika and Tele2

Buyer Guides

  • Ask Your eSIM Provider
  • Ask Your Hardware Provider
  • eSIM Benefits
  • TCO Analysis
  • eSIM Security

Deep Dives

  • Bootstrap Issues
  • eSIM Lifecycle
  • Future of eSIM
  • Who is the Real Hero?

Blog

  • The Future of Industrial Cellular Connectivity: SGP.32, eSIM, eIM Platforms, Industrial Routers and the Evolution of IoT Connectivity
  • Multi-Network IoT SIM Cards Are Not a Magic Bullet: Why Reliable M2M Connectivity Needs More Than Roaming
  • SGP.32 Routers: Where Are They and When Will They Arrive?
  • SGP.32 v1.2: The Current Specification Explained
  • Teltonika RUT200 eSIM: What SGP.22 Done Properly Actually Looks Like
  • All posts →

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