Meridian Nortel 1 Option 11C Technical Reference Manual page 37

QROUT = number of routes with either CBQ or OHQ
RL = number of route lists
NCOS = number of NCOS defined
Note 5
The total number of Call Registers may not exceed 2048. The recommended
number of Call Registers is:
(T + 815)/33.8 + M + X + Y
where:
T = (A/2 x C x 1.42) - (M x L)
A = the total voice loop traffic in CCS
C = the call register factor
= 1
+ 0.037 if CDR Charge Account
+ 0.150 if NARS/BARS/CDP
+ 0.150 of FCBQ and OHQ
+ 0.033 if ACD RAN
+ 0.019 if Telset Messaging
+ 0.140 if Integrated Messaging System
+ 0.083 if Ring Again
+ 0.033 if Music Trunk
+ 0.067 if Call Park
+ 0.003 if New Flexible Code Restriction
+ 0.039 if ESN signalling
+ 0.000 if Stored Number Re-dial (negligible impact)
L = average CCS per ACD trunk
M = the number of ACD incoming trunks
X = 0 if no Network ACD (NACD)
= the number of ACD calls which overflow out of Source ACD DNs
=(# Source ACD DNs) x (average overflow from Source ACD DNs)
Memory, Storage and CPU capacity
on this node
Option 11C and 11C Mini
Page 37 of 544
Technical Reference Guide