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TechSpec
Category:
22.001
C.1 Scope
C.2 Network Determined User Busy (NDUB) condition
C.3 User Determined User Busy (UDUB) condition
C.4 Mobile subscriber busy
D.1 Scope
D.2 Mobile Originated Call Set-up
D.3 Mobile Terminated Call Set-up
F.1 General
F.2 Supervisory tones
F.3 Recorded announcements
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