3GPP (GSM only) 49-series — Intra-Fixed-Network Signalling Protocols – Stage 3

The technical specifications (TS) are displayed in blue, while the reports (TR) are shown in green.  TS that have been discontinued in earlier releases are indicated with a light blue color.  TR in the '9' range that have been stopped are highlighted in light green.  TS or TR with a yellow background indicate those updated (other than an automatic update to Rel-18 version after Rel-18 stage 3 freeze) at the latest  Q1-2024  Plenary Meetings.  The new ones are displayed with a single red dotted overline.

TR 49.001
REL  4 → 6
General Network Interworking Scenarios

TS 49.008
REL  4 → 18
Application of BSSAP on the E-interface

TS 49.031
REL  4 → 18
Application Location Services (LCS) – BSSAP-LE

TR 49.995
REL  4 → 18
GPRS – Interworking between Modified PLMN supporting GPRS and legacy GPRS Mobiles