Method Remarks Remarks IXC Remarks Impact Remarks 9.2.7.3.6 Unique Unique CO Unique CO No impact Significant Monitoring of Existing Investigate possible central code identifies code unless flag impact multiple users must NPA exhaust office code DHHSI user. management required for (rating, change TN impact. in back office PSAP. LNP, etc). combinations. systems. 9.2.7.3.7 WSI Provision a High impact Not recommended. Indicator unique flag with to most WSP development the platforms required subscriber’s telephone number. Transmit via . SMS T9-1-1 Call - Analysis of DHHSI Flag Options (continued)
Method Remarks Remarks IXC Remarks Remarks Impact 9.2.7.3.6 Unique central office code Unique CO code identifies DHHSI user. Unique CO code management in back office systems. No impact unless flag required for PSAP. Significant impact (rating, LNP, etc). Monitoring of multiple combinations. Existing users must change TN Investigate possible NPA exhaust impact. 9.2.7.3.7 WSI Indicator Provision a unique flag with the subscriber’s telephone number. Transmit via . High impact to most WSP platforms development required Not recommended. SMS T9-1-1 Call - Analysis of DHHSI Flag Options (continued)
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