NEAX2400 IPX ISDN Features and Specifications
NDA-24311, Issue 1 Page 187
Non-Facility Associated Signaling - PRI N-40
N-40 Non-Facility Associated Signaling - PRIGeneral Description
This feature expands the number of B-channels controlled by one D-channel in a system.
Operating Procedure
No manual operation is required.
Service Conditions
1. Limitations on the number of B-channels controlled by one D-channel in a system are explained below.
The limitations depend on the system traffic, so those are shown at each system.
Transaction abilities are as follows:
a.) When the system is composed of ISDN terminals/ISDN trunks only and ACD service is available
(IOT : OG : IC = 40 : 30 : 30):
b.) If the mean conversation time is 2 minutes and the used line rate is 85%, the following estimated
traffic may be needed for non-facility associated signaling:
c.) The maximum number of B channels which can be controlled by one D chann el is 191.
System OG + IC IOT + OG + IC
IPX 9,670BHC 16,120BHC
The number of Bch Estimated traffic
47 (DTI 2)
71 (DTI 3)
95 (DTI 4)
119 (DTI 5)
143 (DTI 6)
167 (DTI 7)
191 (DTI 8)
1,290BHC
1,980BHC
2,640BHC
3,340BHC
3,940BHC
4,660BHC
5,350BHC