Digital cellular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); User-to-User signalling (UUS) Supplementary Service - Stage 2 (3GPP TS 23.087 version 4.0.0 Release 4)
STANDARD published on 31.3.2001
Designation standards: ETSI TS 123087-V4.0.0
Publication date standards: 31.3.2001
The number of pages: 60
Approximate weight : 180 g (0.40 lbs)
Country: European technical standard
Category: Technical standards ETSI