UJ × TIA Thematic Area 3 • Disaster Management & Public Early Warning

RFC 3261 SIP Voice Trunk & Multi-Channel Emergency Broadcast Center

Reaches 100% of field engineers and citizens in under 10 seconds via outbound SIP voice calls and SMS ring links — even with zero mobile data or power.

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Dispatch Outbound RFC 3261 SIP Voice & SMS Alert

Target Johannesburg Precinct

Emergency Hazard Classification

Field Engineer / Adjudicator Mobile Number (SIP Dial)

Custom Spoken Voice Script (Optional — Blank uses Live Telemetry)

Outbound RFC 3261 SIP Voice Call Registry & DTMF Audit Trail

TwiML + DTMF Keypad 1/2/3

Call SID	Precinct & Incident	Recipient	DTMF Status	Interactive Console
SPUTNIK-SIP-8941A2C0	Scheduled MNF Acoustic Valve Verification — North Ring Main Auckland Park Kingsway Precinct Node A	+27820000000	Answered — Valve Verified (Keypad 1)	Launch Call