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summary
Stage 2 Description for Call Completion Supplementary Services Section 1 - Call Waiting (CW) Section 4 - Terminal Portability - Functions and Information Flows for Services in the ISDN - Modifications and Addenda to: Recommendation Q.83; Study Group XI; 2
Details
Publisher
ITU-T
File size
788.42 KB
Pages
27
Format
PDF
Publication date
1991