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QSIG B Private Networking
Administration for Network Connectivity
CID: 77730 555-233-504 — Issue 1 — April 2000
360
QSIG
QSIG is the generic name for a family of signaling protocols. The Q reference point
or interface is the logical point where signaling is passed between two switches in a
private network. QSIG signaling allows certain features to work in a single-vendor or
multi-vendor network. QSIG complies with the International Organization for
Standardization (ISO) Integrated Services Digital Network (ISDN)
private-networking specifications. QSIG is defined by ISO as the worldwide standard
for private networks. QSIG uses ISO standard protocols as well as call independent
signaling connections (CISCs), administered as non-call-associated temporary signal
(NCA-TSCs).
DEFINITY ECS provides six levels of QSIG functionality (each level is turned on or
off on page 6 of the Customer Options screen):
QSIG Category Supported Features
Basic Call Setup
• Basic Call Setup
• Number Transport
Basic Supplementary
Services
• Called/Busy Name
• Name Identification Services
• Call Forwarding (Diversion)
• Call Transfer
• Centralized AUDIX
• Call Offer
• Call Completion (Automatic Callback)
Centralized Attendant
• Centralized Attendant Service (CAS).
Supplementary Services
with Rerouting
• Call Forwarding (Diversion) with Reroute
(using Path Replacement)
• Call Transfer with Reroute (using Path
Replacement)
Transfer into Lucent QSIG
Voice Mail
• Call Transfer into QSIG Voice Mail
Value-Added Lucent (VALU)
•
Displays of called party number to the calling
party when the called number is ringing or
busy (Called/Busy Number)
• Distinctive Ringing to identify
internal/external and priority calls
• Call Coverage to networked switches.