System Functions and Features as of I7.9
68
Identification Elements
sy
d-
020
0/3.
0
– I7.
9
– 1
1
.2009
Call made by a PISN user in the public network
PISN user E (310) on the public network calls user C on PINX 2 via PINX 1. He dials
055 555 55 54.
Fig. 27
Example 8: User E calls user C (excerpt from
)
Tab. 21
Example 8: Creating and presenting user E’s CLIP number
Step
CLIP number
NPI
TON
Description
1
055 777 77 77
E.164
Unknown
User E
→
Exchange
→
PINX 1
2
55 777 77 77
E.164
National
PINX 1
• Prefix is truncated.
• TON is set to
national
.
3
777 77 77
E.164
Subscriber
• Long-distance code is truncated as it is the same as
the system’s own long-distance code.
• TON is set to
subscriber
.
4
310
PNP
level 0
• CLIP number matches the call number to PISN
users: PISN user number is set
• A suitable DDI number is not found.
5
50310
PNP
level 1
PINX 2
→
PINX 1
• Regional prefix is added and TON is adapted.
6
310
PNP
level 0
PINX 2
• System’s own regional prefix is deleted and TON
adapted.
7
310
Unknown
level 0
PINX 2
→
User C
• Presentation on the system terminal
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HAZAAENA
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PINX 2
