GSM/UMTS protocol/interface

namdv5

GSM interfaces

UMTS - Release 99

UMTS - Release 4 architecture

Protocol / interface (1)

Protocol / interface (2)

References

Introduction to SS7 Signaling Nokia Training - Jan 2002

GSM Interfaces and Protocols - http://what-when-how.com (access Feb 27, 2015)

UMTS Interfaces and Protocols - http://what-when-how.com (access Feb 27, 2015)