10
 
Figure 14 
 
Flow Step Description 
1. End User initiates 
disconnect 
• The End User provides disconnect date and negotiates intercept treatment 
with current SP. 
2. Is NLSP a Reseller 
or Class 2 or 3 
Interconnected 
VoIP Provider? 
• If Yes, go to Step 3. 
• If No, go to Step 4. 
3. NLSP sends 
disconnect request 
to NNSP 
• Current Local SP sends disconnect request to current Network SP, per 
inter-company processes. 
4. NNSP initiates 
disconnect 
• NNSP initiates disconnect of service based on request from NLSP or End 
User. 
• NNSP initiates disconnect of service based on regulatory authority(s). 
5. NNSP arranges 
intercept treatment 
when applicable 
• NNSP arranges intercept treatment as negotiated with the End User, or, 
when the disconnect is SP initiated, per internal processes. 
6. NNSP creates and 
processes service 
order 
• NNSP follows existing internal process flows to ensure the disconnect 
within its own systems. 
7. NNSP notifies 
NPAC of 
disconnect date1 
and indicates 
effective release 
date2 
• NNSP notifies NPAC of disconnect date via the SOA interface and 
indicates effective release date, which defines when the broadcast occurs. 
• If no effective release date is given, the broadcast from the NPAC is 
immediate.  The maximum interval between disconnect date and effective 
release date is 18 months. 
8. Has effective 
release date been 
reached? 
• If Yes, go to Step 9. 
• If No, repeat Step 8. 
9. NPAC broadcasts 
subscription 
deletion to all 
applicable 
providers 
• On effective release date, the NPAC broadcasts SV deletion to all 
applicable SPs via the LSMS interface. 
10. Notify Provider – 
NPAC notifies 
code/block holder 
of disconnected 
TN(s), disconnect 
and release dates 
• On effective release date, the NPAC notifies code/block holder of the 
disconnected TN(s), effective release and disconnect dates via the SOA 
interface. Reseller/Interconnected VoIP Provider/Type 1 Notification, 
Figure 8. 
11. NPAC deletes 
TN(s) from active 
database 
• On effective release date, the NPAC removes telephone number from 
NPAC database. 
12. End