GSMA Specifications & Resources
GSMA
RCS Universal Profile and eSIM remote provisioning specs are GSMA — not 3GPP — and drive consumer messaging and SIM policy.
What It Is
Mobile operator industry body. Publishes eSIM/eUICC (SGP series), RCS Universal Profile, and operator interoperability guidelines.
Taxonomy
By solution area: eSIM · RCS · IoT · Identity · Fraud
Top-Level Categories
Master Catalog
Sub-Indexes & Guides
Industry organization representing mobile operators worldwide. Publishes operational specifications including eSIM/eUICC (SGP.02, SGP.22), RCS Universal Profile, and network interoperability guidelines. Not a formal standards body but produces widely-adopted operator specifications.
View all bodies →Curated specs from GSMA
eSIM is now standard in smartphones (iPhone XR+, Android flagships), laptops, and cellular IoT modules. Understanding SGP.22 RSP is essential for telecom apps that provision cellular connectivity programmatically.
RCS is replacing SMS for brand messaging, OTP, and consumer engagement. Every major US/EU carrier now supports RCS Universal Profile. If you build SMS communications today, you need to understand RCS UP for 2025+ deployments.