1. 1 NIIF Summary Report Activities since the NIIF #57 meeting May 16, 2007 Robert Schafer NIIF Co Chair

2. 2 NIIF Leadership 2007 Network Interconnection/Interoperability Forum NIIF Co Chair:Robert Schafer (Verizon) Network Inter-Operability Committee NIOC Co Chair:Robin Meier (AT&T) NIOC Co Chair: Ann Marie Cederberg (Qwest) Network Rating Resources Information Committee NRRIC Co Chair: Karen Hoffman (John Staurulakis, Inc.) NRRIC Co Chair: Karen Riepenkroger (Sprint Nextel)

3. 3 Meetings Held from February 8, 2007 to May 15, 2007 February 8, 2007 – Issue #0253, Substantive Updates to NIIF 0015, Intercompany Responsibilities Within the Telecommunications Industry document, Conference Call from 1:00 – 4:00pm Eastern February 23, 2007 – Issue #0273, Rehome Procedures and LERG Effective Dates, Conference Call from 2:00 – 4:00pm Eastern March 5, 2007 – Issue #0281, Emergency Notification Systems Jeopardize Network Reliability, Conference Call from 11:00am – 3:00pm Eastern March 6, 2007 – Joint NIOC/NRRIC Issue #0268, Update NIIF Part XIII Terms and Definitions Document, Conference Call from 11:00am – 2:00pm Eastern March 9, 2007 – Issue #0280, NIIF Reference Document Part III, Attachment E; SS7 Network Gateway Screening Document Update, and Issue #0284, SS7 Transit Carrier Screening, Conference Call from 11:00am – 5:00pm Eastern

4. 4 Meetings Held from February 8, 2007 to May 15, 2007(cont.) March 27, 2007 – Joint NIOC, OBF, and AMATSG Issue #227, Clarification to resolution statement of Issue #0199 Toll Free Numbers in Calling Party Field; Issue #0246, Jurisdiction Information Parameter (JIP) Population Rules when VoIP Technology is Involved for Some Portion of the Call; Issue #0250, Guidelines for the Use of Charge Number Field; and Issue #0270, Update NIIF Documentation on Rating and Routing in a Competitive Local Environment, Conference Call from 11:00am – 5:00pm Eastern March 30, 2007 – Issue #0273, Rehome Procedures and LERG Effective Dates, Conference Call from 11:00am – 1:00pm Eastern April 3, 2007 – Issue #0284, SS7 Transit Carrier Screening, Conference Call from 11:00am – 1:00pm Eastern April 4, 2007 – Issue #0281, Emergency Notification Systems Jeopardize Network Reliability, Conference Call from 11:00am – 3:00pm Eastern April 30 – May 1, 2007 – NRRIC #33 May 2 – 4, 2007 – NIOC #58

5. 5 Correspondence Reviewed since NIIF General Session #57 NIIF Correspondence #070228-001: OBF to the NIOC regarding response to the liaison Re: NIIF Issue #0270 additional information NIIF Correspondence #070307-001 from the NRRIC to State PUC's regarding updates to the NRRIC Educational Document

6. 6 Correspondence Drafted since NIIF General Session #57 NIIF Correspondence #070131-001: NIOC to Emergency Notification System Vendors and Provider Subject Matter Experts regarding an invitation to attend future conference calls on Issue #0281 NIIF Correspondence #070202-001: NIOC to ESIF Committee regarding request for a joint meeting in regards to ESIF Issue #52, Alternative Routing Options, during the ATIS annual meeting NIIF Correspondence #070202-002: NIIF/NIOC to OPASTCO and NTCA regarding opportunity to review the information located within the Company Specific Contact Directory and Local Number Portability Contact Directory NIIF Correspondence #070302-001: ATIS Filing to the FCC on Behalf of the NIIF regarding updates to the Telecommunications Relay Service guidelines to reduce inappropriate blocking on SS7 networks of calls using Text Teletype and similar technologies NIIF Correspondence #070307-001 from the NRRIC to State PUC's regarding updates to the NRRIC Educational Document

7. 7 NIIF New Issues Issue #0285, Addition of switch code discrepancies in NRRIC Discrepancy Report 3 Issue #0286, Lack of SS7 Transfer Controlled (TFC) Message support will degrade the probability of completion for NS/EP calls * NIIF Issues can be accessed at http://www.atis.org/niif/issues.asp.http://www.atis.org/niif/issues.asp

8. 8 NIIF Issues in Initial Closure Issues in Initial Closure: N/A Issues in Initial Pending: N/A * NIIF Issues can be accessed at http://www.atis.org/niif/issues.asp.http://www.atis.org/niif/issues.asp

9. 9 NIIF Issues in Final Closure Issues Placed in Final Closure since NIIF GS #57: Issue #0253: Substantive Updates to NIIF 0015, Intercompany Responsibilities Within the Telecommunications Industry document Issue #0271, Revise NIIF 0014, NIIF Report on Rating and Routing in a Competitive Local Environment Issue #0275R1, Investigating Alternatives for IntraLATA PIC Verification Issue #0279, SS7 ISUP IAM Precedence Parameter Issue #0283, 500 and 900 Trouble Reporting Information Updates * NIIF Issues can be accessed at http://www.atis.org/niif/issues.asp.http://www.atis.org/niif/issues.asp

10. 10 Other Activity Ongoing work to obtain updates to NIIF Contact Lists Status of IAM POTS=0 requested from wireless industry Continue productive joint meetings held by the NRRIC and NIOC with other ATIS committees to resolve active issues Status of SS7 ISUP IAM Precedence Parameter activity

11. 11 Identified Concerns Bringing New Technology Issues and SMEs into the Forum Translating ATIS TOPS Priorities into Specific Issues Increasing number of issues is leading to the need for additional meeting time

12. 12 Future Interim Meetings NRRIC Meetings –May 22, 2007 – Joint NIOC/NRRIC Issue #0268, Update NIIF Part XIII Terms and Definitions Document, Conference Call from 11:00am – 2:00pm Eastern –June 12, 2007 – Issue #0285, Addition of switch code discrepancies in NRRIC Discrepancy Report 3, Conference Call from 11:00am – 1:00pm EDT –June 14, 2007 – Issue #0273, Rehome Procedures and LERG Effective Dates, Conference Call from 11:00am – 1:00pm EDT –July 24, 2007 – Issue #0264, Update the NIIF Mergers and Acquisitions Document, Conference Call from 11:00am – 2:00pm EDT –Week of August 6, 2007 - NRRIC #34

13. 13 Future Interim Meetings NIOC Meetings –May 22, 2007 – Joint NRRIC/NIOC Issue #0268, Update NIIF Part XIII Terms and Definitions Document, Conference Call from 11:00am – 2:00pm EDT –May 24, 2007 – Issue #0284, SS7 Transit Carrier Screening, Conference Call from 11:00am – 1:00pm EDT –June 18 – 22, 2007 – NIOC #59 –June 19, 2007 – Issue #0286, Lack of SS7 Transfer Controlled (TFC) Message support will degrade the probability of completion for NS/EP calls, Conference Call from 11:00am – 2:00pm EDT –June 20, 2007 – Issue #0281, Emergency Notification Systems Jeopardize Network Reliability, Conference Call from 11:00am EDT –July 17, 2007 - Joint NIOC, OBF, and AMATSG Issue #227, Clarification to resolution statement of Issue #0199 Toll Free Numbers in Calling Party Field; Issue #0246, Jurisdiction Information Parameter (JIP) Population Rules when VoIP Technology is Involved for Some Portion of the Call; Issue #0250, Guidelines for the Use of Charge Number Field; and Issue #0270, Update NIIF Documentation on Rating and Routing in a Competitive Local Environment, Conference Call from 11:00am – 5:00pm EDT

14. 14 Next NIIF Meeting NIIF #59 Virtual Meeting, July 11, 2007: –NIOC #59 - June 18 - 22, 2007 –NRRIC #34 – Week of August 9, 2007