1. Page 1 Verizon Wireless Roaming Database Management The VZW Network 175 Serving MSCs Lucent Nortel Motorola 21 Standalone HLRs HP 92 Integrated HLRs Lucent 16670 MBI Ranges 485 BIDs 164 Transmitted SIDs Approximately 150,000 MBIs (10k) loaded into each VZW MSC Approximately 1500 MSCIDs loaded into each VZW MSC & HLR Approximately 1200 Point Codes loaded into each VZW MSC & HLR

2. Page 2 Verizon Wireless Roaming Database Management The VZW Announcement Process A Formatted and Categorized Tech Data Sheet Distribute Regular Industry Announcements - 1 st & 15 th 45 Day Notification for New Network Elements 30 Day Notification for New MBI Ranges 30 Day Notification for MBI Re-Homes Manage and monitor Network to avoid Emergency Announcements

3. Page 3 Verizon Wireless Roaming Database Management Verizon Centralized Roaming System (VCRS) Performs Roaming Updates to all VZW MSCs & HLRs (Weekly) Collects Roaming Database images from HLR/MSCs Contains Industry Master MBI Tech Data Contains VZW Roaming Agreements at the BID Level Allows date and time of day scheduling to support routing/rehome changes Allows Carriers to Perform Load Checks (ROMS) Web Interface for Submitting Roaming Tickets Allows exception management based on carrier request (example: brownout request) The Platform

4. Page 4 Verizon Wireless Roaming Database Management The Pro-Active Approach Monitor Clearing House for Carrier MBIs Monitor Utilization Reports to Track VZW MBI Usage Bi-Monthly MBI Audits on MSCs based on Roaming Agreements and Carrier Technical Data Monthly MSCID & Point Code Audits on MSC/HLRs Monitor MSC/HLRs for Timeouts & Errors Monitor STPs for Gateway Screening Errors

5. Page 5 Verizon Wireless Roaming Database Management The Results

6. Page 6 Verizon Wireless Roaming Database Management ROMS Website https://roms.verizonwireless.com/index.htm Instantly creates a trouble ticket that is available to be worked Provides a trouble ticket number to ticket creator for reference Allows ticket creator to provide detailed and accurate information Provides immediate notification when the trouble is resolved

7. Page 7 ROMS Website Enter MBI/MIN and choose a Verizon SID to check the load on each MSC Click Create Service Request to open a ticket

8. Page 8 ROMS Website Enter the customers MBI/MIN Select the Serving MSC Select a standard roaming problem type (MIN load, SS7 routing, etc.) OR For Voice, Data and SMS issues, select Other problem type not shown

9. Page 9 ROMS Website Fill in each field Select an appropriate problem type Provide detailed comments including research you have done and specific examples Be sure to include specific details Contact Rachel.Durden @verizonwireless.com for ROMS Administration Issues