Version 4'0

1
North American Numbering Council
(NANC)Inter-Service Provider LNP Operations Flows

• NOTE For a more detailed description of each
  process step within these flows, please refer to
  the accompanying Inter-Service Provider
• LNP Operations Flows Narratives (Version 4.0)
• NOTE
• Pursuant to FCC Order 07-188, released on
  November 8, 2007, and FCC Order 09-41, released
  on May 13, 2009, Local Number Portability
• (LNP) obligations are extended to
  interconnected Voice over Internet Protocol
  (VoIP) providers. The North American Numbering
  Council
• (NANC) identifies three classes of
  interconnected VoIP providers, defined as
  follows
• Class 1 A standalone interconnected VoIP
  provider that obtains numbering resources
  directly from the North American Numbering Plan
  Administrator (NANPA) and the Pooling
  Administrator (PA) and connects directly to the
  PSTN (i.e., not through a PSTN LEC partners end
  office switch). Class 1 standalone
  interconnected VoIP providers must follow the
  appropriate Wireline-Wireline/Intermodal Flows
  (Simple or Non-Simple, whichever is applicable)
  for the LNP provisioning process, serving as the
  New Network Service Provider (NNSP) or Old
  Network Service Provider (ONSP), whichever is
  applicable.
• Class 2 An interconnected VoIP provider that
  partners with a facilities-based Public Switched
  Telephone Network (PSTN) Local Exchange Carrier
  (LEC) to obtain numbering resources and
  connectivity to the PSTN via the LEC partners
  end office switch. A Class 2 interconnected
  VoIP provider is not considered a reseller in the
  context of the FCC definition of a Simple Port
  (refer to FCC Order 07-188 and FCC Order 09-41
  for Simple Port definition). Class 2
  interconnected VoIP providers must follow the
  appropriate Wireline-Wireline/Intermodal Flows
  (Simple or Non-Simple, whichever is applicable)
  for the LNP provisioning process, serving as the
  New Local Service Provider (NLSP) or Old Local
  Service Provider (OLSP), whichever is
  applicable.
• Class 3 A non-facilities-based reseller of
  interconnected VoIP services that utilizes the
  numbering resources and facilities of another
  interconnected VoIP provider (analogous to the
  traditional PSTN reseller). A Class 3
  interconnected VoIP provider is not considered a
  reseller in the context of the FCC definition of
  a Simple Port (refer to FCC Order 07-188 and FCC
  Order 09-41 for Simple Port definition). Class 3
  interconnected VoIP providers must follow the
  appropriate Wireline- Wireline/Intermodal Flows
  (Simple or Non-Simple, whichever is applicable)
  for the LNP provisioning process, serving as
  the New Local Service Provider (NLSP) or Old
  Local Service Provider (OLSP), whichever is
  applicable.

Version 4.0
2
1
Inter-Service Provider LNP Operations Flows -
Port Type Determination -
End User Contact with NLSP
2
End User Agrees to change to NLSP
3
NLSP obtains End User authorization
7
6
9
4
Is this a Simple Port?
Proceed to Figure 3 Step 1
(Optional) NLSP requests CSR from OLSP
No
Is this a Wireless-Wireless Port?
No
Yes
Yes
8
5
Proceed to Figure 2 Step 1
Proceed to Figure 4 Step 1
Figure 1
Version 4.0
3
Inter-Service Provider LNP Operations
Flows -Simple Wireline-Wireline and Intermodal
(including Interconnected VoIP)- -LSR/FOC Process-
8
10
9
Is additional Non-Simple data needed for LSR?
ONSP returns LSR to NNSP with request
for applicable Non-Simple data
ONSP sends FOC with appropriate Due Date for Non-
Simple Port to NNSP
No
Yes
DD
EE
No
4
11
7
1
3
Is OLSP a Class 2 or Class 3 Interconnected VoIP P
rovider?
ONSP sends FOC confirming Simple Port request to
NNSP
Does ONSP confirm this as a Simple Port?
Is NLSP a Class 2 or Class 3 Interconnected VoIP P
rovider?
Yes
NNSP sends LSR for Simple Port to ONSP
No
12
Is NLSP a Class 2 or Class 3 Interconnected VoIP P
rovider?
Yes
Yes
No
5
2
Notify Interconnected VoIP Provider
NLSP sends LSR or LSR information to NNSP for
interconnection service
Yes
(conditional) ONSP sends LSR, LSR information, or
Loss Notification to OLSP
6
13
(conditional) OLSP sends FOC or FOC information
to ONSP
NNSP forwards FOC or FOC information to NLSP
Figure 7
SIMPLE LSR- FOC
Figure 2
Version 4.0
4
Inter-Service Provider LNP Operations
Flows -Non-Simple Wireline-Wireline and
Intermodal (including Interconnected
VoIP)- -LSR/FOC Process-
6
DD
EE
Is OLSP a Reseller or Class 2 or Class 3
Interconnected VoIP Provider or is a Type
1 wireless number involved?
10
1
3
9
5
Is end-user porting all TNs?
Is NLSP a Reseller or Class 2 or Class 3
Interconnected VoIP Provider?
Is NLSP a Reseller or Class 2 or Class 3
Interconnected VoIP Provider?
NNSP sends LSR to ONSP
ONSP sends FOC to NNSP
Yes
No
No
No
Yes
Yes
No
Yes
7
2
4
8
11
Notify Reseller or Interconnected VoIP Provider
(conditional) OLSP sends FOC or FOC information
to ONSP
NNSP forwards FOC or FOC information to NLSP
NLSP notes not all TNs being ported in
the remarks section of LSR
NLSP sends LSR or LSR information to NNSP for
resale or interconnection service
(conditional) ONSP sends LSR, LSR information, or
Loss Notification to OLSP
Figure 7
NON-SIMPLE LSR- FOC
Figure 3
Version 4.0
5
Inter-Service Provider LNP Operations
Flows -Wireless ICP Process-
17
WPRR is a Resolution response
5
1
4
3
ONSP sends WPRR rejection to NNSP
Yes
Is a Type 1 wireless number involved?
No
Is NLSP a Reseller?
NNSP sends WPR to ONSP
Yes
No
2
No
16
11
12
14
8
NLSP sends WPR or WPR information to NNSP for
resale service
No
No
No
ONSP sends WPRR to NNSP
Is WPRR confirmed?
Is NLSP a Reseller?
Is WPRR a delay?
Is OLSP a Reseller?
Yes
Yes
Yes
Yes
13
9
NNSP forwards WPRR or WPRR Information to NLSP
ONSP sends WPR or WPR information to OLSP
ICP
NOTE No changes were made to this flow.
15
10
No
Is OLSP a Reseller?
OLSP sends WPRR or WPRR information to ONSP
Yes
Figure 4
Version 4.0
6
Inter-Service Provider LNP Operations Flows -
Main Flow -
1
3
Are NNSP and ONSP the same SP?
Is NPAC processing required?
Yes
SIMPLE LSR- FOC
No
No
NOTE Changes are indicated in red.
Yes
NON-SIMPLE LSR- FOC
2
4
NNSP coordinates all porting activities.
Perform intra provider port or modify existing SV
ICP
9
6
5
NPAC logs request to place the order in
conflict, including cause code
7
8
Create
NNSP and ONSP create and process service orders
Did ONSP place the order in conflict?
B
Was port request canceled?
Yes
No
Service Provider Port Request Figure 6
12
Is the Unconditional 10 digit trigger being used
or does ONSP query on every call?
Yes
No
10
11
Notify Reseller/ Interconnected VoIP Provider
NNSP coordinates physical changes with ONSP
13
Yes
End
NPAC notifies NNSP and ONSP that port is
canceled Figure 7
AA
No
Z
A
BB
Figure 5
Version 4.0
7
Inter-Service Provider LNP Operations
Flows -Subscription Version Create Flow-
3
1
2
NPAC notifies appropriate service provider that
Create message is invalid
Is Create message valid?
NNSP and (optionally) ONSP notify NPAC
with Create message
No
Create
Yes
4
NPAC starts T1 timer
NPAC notifies appropriate service provider that
Create Message is invalid
14
10
NPAC notifies NNSP and ONSP that T1 has expired
and then starts T2 timer
5
T1 expired?
Yes
No
No
No
11
13
12
19
T2 expired?
Is Create message valid?
Received second Create?
6
Return to Figure 2 Step 13
No
Received second Create?
Yes
Yes
No
Yes
No
18
NPAC notifies NNSP and ONSP that T2 has expired
15
Yes
16
17
9
Notify Reseller/ Interconnected VoIP Provider
Did NNSP send Create?
Has Cancel window for pending SVs expired?
7
NPAC notifies appropriate service provider that
Create message is invalid
No
Is Create message valid?
Yes
No
NPAC notifies NNSP and ONSP that port is
canceled Figure 7
Yes
20
NPAC notifies the ONSP that porting proceeds
under the control of the NNSP
Yes
8
Return to Figure 2 Step 13
NOTE Changes are indicated in red.
Figure 6
Version 4.0
8
Inter-Service Provider LNP Operations
Flows -Reseller/Interconnected VoIP Provider
Notification-
Notify Reseller/ Interconnected VoIP Provider
Is OLSP a Reseller or Class 2 or
3 Interconnected VoIP Provider?
1
No
4
Is NLSP a Reseller or Class 2 or
3 Interconnected VoIP Provider?
Yes
2
Does OLSP need message?
No
No
Yes
Yes
3
ONSP sends or provides information and/or message
to OLSP
5
Does NLSP need message?
No
Yes
7
6
Return
NNSP sends or provides information and/or message
to NLSP
NOTE Changes are indicated in red.
Figure 7
Version 4.0
9
Inter-Service Provider LNP Operations
Flows -Provisioning Without Unconditional
10-Digit Trigger-
3
4
8
9
1
NNSP activates port (locally)
NNSP notifies NPAC to activate the port
NPAC downloads (real time) to all service
providers
All service providers update routing data (real
time download)
NNSP may verify completion
A
5
Z
NPAC records date and time in history file
2
NNSP and ONSP make physical changes
(where necessary)
6
ONSP removes translations in central office or
switch/HLR
7
NPAC logs failures and non-responses and
notifies the NNSP and ONSP
NOTE No changes were made to this flow.
Figure 8
Version 4.0
10
Inter-Service Provider LNP Operations
Flows -Provisioning With Unconditional 10-Digit
Trigger-
2
4
5
1
8
ONSP activates unconditional 10 digit trigger
in the central office
NNSP activates central office translations
NPAC downloads (real time) to all service
providers
All service providers update routing data (real
time download)
NNSP notifies NPAC to activate the port
AA
6
9
NPAC records date and time in history file
ONSP removes appropriate translations
3
NNSP and ONSP make physical changes
(where necessary)
7
10
NNSP may verify completion
NPAC logs failures and non-responses and
notifies the NNSP and ONSP
Z
NOTE No changes were made to this flow.
Figure 9
Version 4.0
11
Inter-Service Provider LNP Operations
Flows -Conflict Flow For The Service Creation
Provisioning Process-
B
3
Notify Reseller or Interconnected VoIP Provider
4
1
5
7
8
Was port request canceled to resolve conflict?
Was resolution message from ONSP?
Was Conflict Resolved within Conflict Expiration
window?
Is conflict restricted?
NNSP contacts ONSP to resolve conflict. If
no agreement is reached begin normal escalation.
No
No
Yes
NPAC changes the subscription status to
conflict and notifies the NNSP and ONSP
Yes
No
Yes
Yes
2
Figure 7
12
C
10
No
NPAC rejects the conflict request
Was the Conflict Cause Code 50 or 51?
Did NNSP send resolution message during
the restriction window?
6
No
No
Notify Reseller or Interconnected VoIP Provider
Yes
Yes
NPAC changes the subscription status to
conflict and notifies the NNSP and ONSP
11
NPAC rejects the conflict resolution request from
NNSP
BB
9
Figure 7
Notify Reseller or Interconnected VoIP Provider
Z
NPAC changes the subscription status to
conflict and notifies the NNSP and ONSP
BB
NOTE Changes are indicated in red.
Figure 7
Figure 10
Version 4.0
12
Inter-Service Provider LNP Operations
Flows -Cancellation Flow For Provisioning Process-
1
12
End-user request to cancel
11
Did the provider requesting cancel send a
Create message to NPAC?
15
Notify Reseller or Interconnected VoIP Provider
Z
NPAC rejects the cancel request
No
4
2
NPAC updates subscription to cancel pending logs
status change and notifies NNSP and ONSP
NLSP sends cancel request to NNSP
14
Did end-user contact NLSP?
No
Notify Reseller or Interconnected VoIP Provider
Yes
C
13
5
Did Both NNSP and ONSP send Create Message
to NPAC?
Yes
Figure 7
NPAC updates subscription to cancel logs status
change and notifies NNSP and ONSP
Yes
NNSP sends SUPP to ONSP noting cancellation
as soon as possible and prior to activation
No
19
16
3
Is NLSP a Reseller or Class 2 or
3 Interconnected VoIP Provider?
NPAC waits for either cancel ACK or expiration
of second cancel window timer
Yes
Did NNSP send cancel to NPAC?
Figure 7
Yes
18
17
No
6
Did NPAC receive Cancel ACK from ONSP within
first Cancel window timer?
NPAC notifies ONSP that cancel ACK is missing
7
No
No
NNSP sends cancel request to NPAC
21
OLSP obtains end-user authorization
Did NPAC receive cancel ACK from NNSP within
first cancel window timer?
20
Yes
Yes
Notify Reseller or Interconnected VoIP Provider
9
Yes
8
OLSP sends cancel request to ONSP
Did NPAC receive cancel ACK from NNSP within
second cancel window timer?
Is OLSP a Reseller or Class 2 or
3 Interconnected VoIP Provider?
23
NPAC changes the subscription status to
conflict and notifies the NNSP and ONSP
Yes
CC
No
No
22
10
NPAC notifies NNSP that cancel ACK is missing
Z
ONSP sends cancel request to NPAC
Figure 7
No
Figure 11
Version 4.0
13
Inter-Service Provider LNP Operations
Flows -Cancellation Ack Missing from New Provider
Provisioning Process-
cc
No
1
10
2
5
7
Notify Reseller or Interconnected VoIP Provider
NPAC rejects the resolve conflict request from
NNSP
Has conflict expiration window expired?
Did NPAC receive Cancel message From NNSP?
Did NPAC receive resolve conflict message from
NNSP?
No
No
NPAC updates subscription to conflict, logs
conflict and notifies NNSP and ONSP
Yes
Yes
Yes
Figure 7
6
3
Notify Reseller or Interconnected VoIP Provider
8
NNSP notifies NPAC to cancel the Subscription
Has NNSP conflict resolution restriction expired?
No
NPAC updates subscription to cancel, logs
cancel and notifies NNSP and ONSP
4
Notify Reseller or Interconnected VoIP Provider
Yes
9
Figure 7
Notify Reseller or Interconnected VoIP Provider
NPAC updates subscription to cancel, logs
cancel and notifies NNSP and ONSP
NPAC notifies NNSP and ONSP of conflict off
via SOA
Z
BB
Figure 7
NOTE Changes are indicated in red.
Figure 7
Figure 12
Version 4.0
14
Inter-Service Provider LNP Operations
Flows -Disconnect Process For Ported Telephone
Numbers-
4
1
End-user Initiates disconnect
9
NNSP initiates disconnect
NPAC broadcasts subscription deletion to
all applicable providers
8
2
5
Has effective release date been reached?
Is NLSP a reseller or Class 2 or
3 Interconnected VoIP Provider?
NNSP arranges intercept treatment when applicable
Yes
10
No
Notify Reseller or Interconnected VoIP Provider
NPAC notifies code/block holder of
disconnected TN disconnect and release dates
Yes
No
6
3
NNSP creates and processes service order
NLSP sends disconnect request to NNSP
Figure 7
11
NPAC deletes TN from active database
7
NNSP notifies NPAC of disconnect date and
effective release date
12
NOTE Changes are indicated in red.
End
Disconnect
Figure 13
Version 4.0
15
Inter-Service Provider LNP Operations
Flows -Audit Process-
3
5
2
4
1
NPAC issues queries to appropriate LSMSs
NPAC downloads updates to LSMSs with
subscription version differences
Are all Audits completed?
NPAC compares own subscription version to
LSMS subscription version
Yes
Service provider requests an audit from NPAC
No
6
Notify Reseller or Interconnected VoIP Provider
NPAC reports audit completion and
discrepancies to requestor
Figure 7
7
End
NOTE Changes are indicated in red.
Disconnect
Figure 14
Version 4.0
16
Inter-Service Provider LNP Operations Flows -Code
Opening Process-
3
2
1
NPAC issues queries to appropriate LSMSs
4
NPA-NXX holder notifies NPAC of NPA-NXX
code(s) being opened for porting
NPAC compares own subscription version to
LSMS subscription version
End
Figure 15
-First TN Ported in NPA-NXX-
1
3
First subscription version activity in NPA-NXX?
NPAC successfully processes create request for
TN subscription version
5
No
End
Yes
4
Notify Reseller or Interconnected VoIP Provider
2
NPAC successfully processes create request
for NPA-NXX-X
NPAC sends notification of first TN ported to all
providers via SOA and LSMS
Figure 7
NOTE Changes are indicated in red.
Disconnect
Version 4.0
Figure 16
17
Inter-Service Provider LNP Operations
Flows -Cancel-Undo Process-
5
Notify Reseller or Interconnected VoIP Provider
4
2
1
Did the provider requesting a cancel-undo issue
a cancel for this subscription?
6
Is the subscription in cancel-pending status?
NPAC updates subscription to status prior to
cancel and notifies NNSP and ONSP
End
Provider requests a cancel-undo
Yes
Yes
Figure 7
No
No
3
NPAC rejects the cancel-undo request
NOTE Changes are indicated in red.
Disconnect
Version 4.0
Figure 17