Potential for T1S1 Review of ANSI Point Code Assignments Fred Gaechter IFAST Chairman An SAIC Company

Network Interconnection – 2 Chronology of Issue at IFAST  Iusacell previously introduced the issue –IFAST supported an ANSI solution –Agreed, in concept, to a US entity offering a contribution to T1S1 –No US entity willing to introduce issue to T1S1  Recent conference call w/ Carlos Zamora and Telefonica de Espana  My dual role: IFAST Chairman and US SS7 Point Code Administrator –No unilateral solution as Administrator –Agreed to pursue as IFAST Chairman

Network Interconnection – 3 Discussion with T1S1.3 Chairman  T1S1.3 responsible for oversight of ANSI Point Codes  Current T1S1.3 Chairman (Telcordia) not familiar with the issue  Concerns: –ITU “portability” paranoia –Potential exhaust of finite resource with undetermined demand –Who will be assigned how many resources? –Reality of reclamation?  Friendly, cooperative, non-committal discussion  Strong commitment to address the issue  T1S1.3 is contribution driven –T1S1 member entity contribution –Non-T1S1 member entity contribution

Network Interconnection – 4 Potential Work Plan  Determine level of IFAST support  If supported, determine what entity will contribute to T1S1.3 –Member entity –Non-member entity –IFAST  Develop contribution and identify presenter(s)  Present contribution and answer questions/concerns  If positive response, assist T1S1.3 in revision of Point Code Assignment Guidelines