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Stage 3 Description for Call Completion Supplementary Services Using SS No. 7 - Clause 2 - Call Hold (HOLD) Clause 4 - Terminal Portability (TP) - Specifications of Signalling System No. 7 (Study Group XI) 16 pp
Details
Publisher
ITU-T
File size
554.89 KB
Pages
16
Format
PDF
Publication date
1993