SMS T9-1-1 Call - Analysis of DHHSI Flag Options Section Indicator Description WSP SP LEC & PSAP DHHSI Recommendation Method Remarks Remarks IXC Remarks Impact Remarks 9.2.7.3.1 Manual PSAP manually Database No impact n/a Manual Delay in Not recommended. lookup checks via update on SP lookup SMS T9-1-1 national methods infrastructure processes are service database require not development recommended 9.2.7.3.2 Reverse PSAP manually Database network n/a Manual Delay in Not recommended. checks via update development lookup SMS T9-1-1 reverse methods for accepting processes are service require DHHSI TNs not development and reverse recommended 9.2.7.3.3 DHHSI Subscriber Customer n/a A flag is How are Potential solution. Wireless registers TN on records development essential. DHHSI Investigate further. handset web site impact required to Potential CAD persons TNs loaded (central expand dip impact. authenticated into database feeds during call during databases ALIs) registration? 9.2.7.3.4 Abbreviated 9xx or * code or High impact voice and n/a voice network Not recommended dialling # code data impact code infrastructure development required 9.2.7.3.5 Unique Unique area Unique area No impact Significant Existing Might be feasible. area code code identifies code unless flag impact users must Investigate further. (e.g. 5XX DHHSI user. management required for (rating, change TN. SAC or in back office PSAP. LNP, etc). May be unique systems. restricted to NPA) outgoing calls only. Section Indicator Description WSP SP LEC & PSAP DHHSI Recommendation
SMS T9-1-1 Call - Analysis of DHHSI Flag Options Section Indicator Method Description WSP Remarks SP Remarks LEC & IXC Remarks PSAP Remarks DHHSI Impact Recommendation 9.2.7.3.1 Manual lookup PSAP manually checks via national database Database update methods require development No impact on SP infrastructure n/a Manual lookup processes are not recommended Delay in SMS T9-1-1 service Not recommended. 9.2.7.3.2 Reverse PSAP manually checks via reverse Database update methods require development network development for accepting DHHSI TNs and reverse n/a Manual lookup processes are not recommended Delay in SMS T9-1-1 service Not recommended. 9.2.7.3.3 DHHSI Wireless handset TNs loaded into databases Subscriber registers TN on web site (central database feeds ALIs) Customer records impact development required to expand dip during call n/a A flag is essential. Potential CAD impact. How are DHHSI persons authenticated during registration? Potential solution. Investigate further. 9.2.7.3.4 Abbreviated dialling code 9xx or * code or # code High impact voice and data infrastructure development required n/a voice network impact Not recommended 9.2.7.3.5 Unique area code (e.g. 5XX SAC or unique NPA) Unique area code identifies DHHSI user. Unique area code management in back office systems. No impact unless flag required for PSAP. Significant impact (rating, LNP, etc). Existing users must change TN. May be restricted to outgoing calls only. Might be feasible. Investigate further. Section Indicator Description WSP SP LEC & PSAP DHHSI Recommendation