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Version 4Q01: 12/01/01
Attachment 5
Page 4
requirements for LNP as ordered by the FCC and recommended by the NANC.
The Parties shall work cooperatively to implement standards adopted by the North
American Numbering Council (“NANC”) or telecommunications industry fora.
2.2 The requirements for LNP shall include the following:
2.2.1 Subscribers must be able to change local service providers and retain the same
telephone number(s) consistent with FCC Rules and Regulations.
2.3 SMS Administration. The Parties will work cooperatively with other local service
providers to establish and maintain contracts for the LNP Service Management
System (“SMS”).
2.4 Network Architecture
2.4.1 Architecture shall be consistent with the FCC’s 2 nd Report and Order.
2.5 Signaling. In connection with LNP, each Party agrees to use SS7 signaling in
accordance with applicable FCC Rules and Orders.
2.6 N-1 Query. AT&T and BHN will adhere to the NANC recommendations as
adopted by the FCC in Order No. 97-298, released August 18, 1997.
2.7 Porting of Reserved Numbers and Suspended Lines. Customers of each Party may
port numbers, via LNP, that are in a denied state or that are on suspend status. In
addition, Customers of each Party may port reserved numbers that the Customer
has paid to reserve. Portable reserved numbers are identified on the Customer’s
CSR. In anticipation of porting from one Party to the other Party, a Party’s
subscriber may reserve additional telephone numbers and include them with the
numbers that are subsequently ported to the other Party. It is not necessary to
restore a denied number before it is ported.
2.8 Splitting of Number Groups. If blocks of subscriber numbers (including, but not
limited to, DID numbers and MultiServ groups) are split in connection with an
LNP request, the Parties shall permit such splitting. AT&T and BHN shall offer
number portability to customers for any portion of an existing block of DID
numbers without being required to port the entire block of numbers. AT&T and
BHN shall permit end-users who port a portion of DID numbers to retain DID
service on the remaining portion of numbers. If a Party requests porting a range of
DID numbers smaller than a whole block, that Party shall pay the applicable
charges for doing so as set forth in Attachment 2 of this Agreement. In the event a
rate is not available then the Parties shall negotiate a rate for such services.
2.9 Intercept Announcement - Cause Code 26. If a call to a ported number is routed to
either Party's switch, even though the LRN signaled on the call is for the receiving
Party's switch, then the receiving Party's switch will provide Cause Code 26
treatment either (i) by playing an appropriate intercept announcement; or (ii) by
CCCS 181 of 369