Voice and SMS Working Group Overview

1. Voice and SMS Working GroupOverview CDG International Roaming Team (IRT) Voice and SMS Working Group Macau 21 March 2007 Libby Mackay, lmackay@qualcomm.com Kyoko Uchida, ky-uchida@kddi.com Daniel Salek, dsalek@qualcomm.com

2. Voice and SMS Working Group Leadership Team Leads • Kyoko Uchida, KDDI • Libby Mackay, QUALCOMM Technical Team Lead • Daniel Salek, QUALCOMM

3. CDMA Roaming Information Exchange Tool (C-RIET) Topic • Created a tool for carriers to exchange roaming documents in a secure location including permissions access and email notification. Status • Trial application in place and used by several carriers • Positive feedback from users Next Steps • Additional enhancements are being designed including security and usability enhancements • Hope to launch for use of all in 6 - 8 weeks

4. Mapping Exchange Topic • Need to easily exchange maps between carriers Status • C-RIET meets this need Topic #2 • Common mapping format requested Status • Sprint Nextel is carrier lead • Subgroup to focus on creating map requirements • Long term to consider a more elaborate solution similar to GSM World mapping site.

5. Voicemail & Caller ID Topic • Voicemail & Caller ID Status • Document finished, now ready to implement. • If you do SMS, the RSPs can assist you with SMS based notification. • No major barriers to MT implementation, RSPs can help. Next Steps • Up to carriers to implement the recommendations of the completed document

6. SMS Working Session Topic • Billing approaches • SMS length issue Status • Document finished, now ready to implement. • Work with your RSPs on each of these solutions. Next Steps • Up to carriers to implement the recommendations of the completed document. • May want to take another look at your billing approach.

7. Enhanced PRL Implementation Update Topic • Created a quarterly survey to track carrier implementations of EPRL Status • Few carriers reported • Report will be posted on the CDG website in the Documents by Subject section Next Steps • Carriers please fill out the surveys • Review document #86 for more information • Contact your CDG CRM if you have questions about how to implement EPRL • If you want your partners to broadcast the correct MCC MNC – tell them so.

8. EPRL Feedback From Carriers • Most reported reason for not broadcasting assigned MCC MNC – not necessary for their network. • Carriers most requested broadcast MCC MNC in the following countries: • USA • Canada, China, India, • Brazil, Mexico • Japan, Korea, Peru

9. Network Based Plus Code Dialing Implementation Update Topic • Created a quarterly survey to track carrier implementations of Plus Code Dialing Status • Few carriers reported • Report will be posted on the CDG website in the Documents by Subject section • VSWG approved Document 145 Next Steps • Carriers please fill out the surveys • Review document #145 with your engineering team and confirm the requirements meet your needs. • Contact your CDG CRM if you have questions about how to implement network based plus code dialing • If you want your partners to implement plus code dialing – tell them so.

10. Network Based Plus Code Dialing Working Session Topic • Business case ideas • Discussed path forward Status • Document approved by VSWG Next Steps • Carriers to take the requirements back to their engineering team • Carriers to sign off on implementing plus code.

11. Standardized Technical Data Sheets Status • Document #81 is approved by the VSWG and ready for Plenary approval Next Steps • Plenary approval • Steering Committee Approval • All carriers to migrate to new format by June 2007

12. Document #44 – Roaming Agreements Topic • Time to update the Roaming Agreement Template to increase usability Status • New draft in progress Next Steps • Contact Sara Aab to provide input. • Conference call on April 18 to discuss changes

13. MEID Topic • Need testing for MEID billing impacts • CDG bulletin released noting a specific failure scenario Status • Currently no handsets available to test with • Highlighted issues to be aware of Next Steps • Looking for carriers to offer handsets for testing

14. Prepaid Topic • What are the possible methods • What are the potential issues Status • Agreed to focus on WIN triggers Next Steps • Solicit carrier input • Investigate GSM lessons • Write prepaid roaming document

15. Roaming process document #119 Topic • Process document is intended to provide companies with a single non-technical document to assist them in understanding the major components of international roaming and how they fit together. Status • TELUS and MiPhone agreed to assist with Billing and Revenue Assurance sections Next steps • Team review via wiki and conference call when outstanding sections are complete.

16. Additional team member contributions SkyLink – SMS and GTT VeriSign on behalf of Cibernet – Roaming billing changes report Roaming trouble shooting panel members • Verizon • SKT • SkyLink

17. Carrier Scorecards • Congratulations to the following carriers who completed over 50% of the VSWG surveys • Sprint Nextel • Telecom New Zealand • Skylink • Oceanic Digital, Pelephone and SK Telecom • Alltel, Hutch CAT and KDDI • Scorecards are posted on the wiki and updated monthly http://210.54.118.1/wiki/Scorecards

18. Roaming Service Quality Topic • Working on 1st work item the SLA Status • Draft is available for review Next Steps • Carriers to review document and provide feedback to Kyoko • Conference call targeted for April

19. Roaming Trouble Shooting Panel Participants: • Verizon • SK Telecom • Skylink Presented on their trouble shooting procedures.

20. You matter! • We need your feedback and participation • Sign up for the VSWG distribution list • Designate your VSWG POC • Commit to having at least one person attend each of the team conference calls • Provide feedback on the team documents • Consider leading a work item • Complete the surveys as they are sent out • Participation is tracked with the VSWG carrier scorecard

21. You matter! • Commit to using these basic standardized documents • #44 – Roaming Agreement Template • #81 – Voice and SMS TDS • #120 – Voice Partner Qualification Form • #132 – SMS Partner Qualification Form • These will be tracked starting in June using carrier self reporting • Also will be asking for tracking of kinds of implementations and posting in C-RIET when it is in production.

22. Thank You For more information, contact: Libby Mackay, lmackay@qualcomm.com Kyoko Uchida, ky-uchida@kddi.com Daniel Salek, dsalek@qualcomm.com Access team documents on the team wiki: http://210.54.118.1/wiki/Main_Page

23. Reports For more information, contact: Libby Mackay, lmackay@qualcomm.com Kyoko Uchida, ky-uchida@kddi.com Daniel Salek, dsalek@qualcomm.com Access team documents on the team wiki: http://210.54.118.1/wiki/Main_Page

24. 1Q2007 EPRL Status

25. Plus Code Dialing Industry Overview

26. Carrier Plus Code Dialing Report

27. Carrier Scorecard

28. Work Item Status

29. Work Item Status

30. Work Item Status Other work items have been ranked and will be started when existing items are further along. See the wiki for additional work item details.