Mitel 430 - Page 95

Identification elements
95
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
PISN - Internal Call with Overflow Routing
User C (340) on PINX 2 calls user A on PINX 1 via PINX 3 as all the available commu-
nication channels between PINX 2 and PINX 1 are busy. PINX 3 belongs to Region 60.
Fig. 42 Example 2: User C calls user A, overflow routing (excerpt from Fig. 40)
Tab. 13 Example 2: Creating and presenting user C’s CLIP number
Step CLIP number NPI TON Description
1 340 PNP Level 0 User C → PINX 2
• There is no suitable DDI number.
2 50340 PNP Level 1 PINX 2
→ PINX 3
3 50340 PNP Level 1 PINX 3
• There is no suitable DDI number.
4 50340 PNP Level 1 PINX 3
→ PINX 1
5 340 PNP Level 0 PINX 1
• The system’s own regional prefix is deleted
• TON is adapted.
6 340 PINX 1
→ user A
• Presentation on the system phone
340
340
340
201
50340
50340
A
C
PINX 3PINX 2
PINX 1
Region 60
Region 50
Transfer PINX
Region 50
Source PINX
Destination PINX