4-1
Feature calculations

Calculations with Authorization Code

With authorization code, the receiver holding times are changed from 6.2
seconds to 19.6 seconds for intra-office calls, and from 14.1 seconds to 27.5
seconds for outgoing calls.
Use these figures in (2) and (3) of Detailed calculation Method 1,‘and (2) of
Detailed calculation Method 2 when calculating the DTR requirements for a
system with the authorization code option.
The following is assumed.
-
All Digitone intra-office and outgoing calls require authorization.
.-_
-
The average number of Special Services Prefix (SSP) digits is 2 (the
maximum is 4).
-
The average number of authorization code digits is 10 (range is 1 to 14
digits).
-
The average receiver holding time is 13.4 seconds.
Note: See Table 6-7 at the end of this document.
System engineering 553-3001-l 51