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VoIP Emergency Calling Support Telcordia Contacts: Nadine Abbott (732) 758-5257 Theresa Reese (732) 758-5244

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Presentation on theme: "VoIP Emergency Calling Support Telcordia Contacts: Nadine Abbott (732) 758-5257 Theresa Reese (732) 758-5244"— Presentation transcript:

1 VoIP Emergency Calling Support Telcordia Contacts: Nadine Abbott (732) 758-5257 nabbott@telcordia.com Theresa Reese (732) 758-5244 treese@telcordia.com Anand Akundi (732) 758-4304 Aakundi@telcordia.com An SAIC Company Provided to support discussions in the NENA VoIP Migratory WG March 23, 2004

2 VoIP Migration (Intermediate) Proposal – nba Telcordia Technologies Proprietary - Internal use only. See proprietary restrictions on title page. 2 Population of Routing Location Databases for VoIP MSAG is populated with routing addresses (e.g., sos@us.st.ESRN) for each ESZ/ESN. Location Gateway Server (LGS) is configured with ESRN to ESQK mappings for each ESN it serves. SRDB is populated with ESQK to ESN/PSAP mappings. ALI DB is populated with ESQK to LGS mappings.sos@us.st.ESRN PSAP E9-1-1 Selective Router User Agent/ IP device ESGW DHCP ESQK = Emergency Services Query Key (associated with LGS & PSAP) ESRN = Emergency Services Routing Number/Information (non-dialable), e.g., npa911xxxx or npa511xxxx. SRDBALI DB DBMS MSAG VoIP domain Emergency Services Provider Network Call server LGS ESZ  ESRN  {ESQKs} ESQK  ESN ESQK LGS LIS ESN  ESRN

3 VoIP Migration (Intermediate) Proposal – nba Telcordia Technologies Proprietary - Internal use only. See proprietary restrictions on title page. 3 VoIP Location Validation VoIP Location Information Server (LIS) requests validation of location objects against MSAG and obtains routing information for the associated Emergency Services Gateway (ESGW)/PSAP. PSAP E9-1-1 Selective Router User Agent/ IP device ESGW DHCP LO = geographic or civil location object ESRN = Emergency Services Routing Number/Information (non-dialable), e.g., npa911xxxx, for routing to ESGW (and to identify PSAP) ESGW = Emergency Services Gateway 1. Location validation request (LO) SRDBALI DB DBMS MSAG 2. LO 1 3. us.st.ESRN 4. Location validation response (us.st.ESRN) VoIP domain Emergency Services Provider Network Call server LGS LIS

4 VoIP Migration (Intermediate) Proposal – nba Telcordia Technologies Proprietary - Internal use only. See proprietary restrictions on title page. 4 User Agent populated with VoIP Location One example of DHCP assisted download of Location Object to User Agent/IP device. Includes routing information to get to ESGW for appropriate Selective Router/PSAP. PSAP E9-1-1 Selective Router User Agent/ IP device ESGW DHCP 2. Stores LO & sos@us.st. ESRN 1. LO and sos@us.st.ESRN LGS SRDBALI DB DBMS MSAG VoIP domain Emergency Services Provider Network Call server DHCP= Dynamic Host Configuration Protocol server LIS= Location Information Server LO = geographic or civil location object LIS

5 VoIP Migration (Intermediate) Proposal – nba Telcordia Technologies Proprietary - Internal use only. See proprietary restrictions on title page. 5 VoIP Emergency Call See notes page. PSAP E9-1-1 Selective Router UA or IP device ESGW LGS SRDBALI DB VoIP domain(s) Emergency Services Provider Network Call server 1. VoIP Call Setup (sos@us.st.ESRN, client ID, LO)sos@u 2. VoIP Call Setup (sos@us.st.ESRN, tel.url *, LO)sos@u ESGW = Emergency Services Gateway (signaling and media) LGS = Location Gateway Server ESQK = Emergency Services Query Key 3. CBN *, LO, ESRN, VoIP Provider ID(s) or History 5. Call Setup (Cd=ESRN, Cg=ESQK) * Call server & ESGW must map “client ID” to a valid Call Back Number 6. ESQK 7. ESQK 4. ESQK 8. ESQK 9. CBN, LO, VoIP Provider ID(s) or History? 10. CBN, LO, VoIP Provider ID(s) or History? LIS

6 VoIP Migration (Intermediate) Proposal – nba Telcordia Technologies Proprietary - Internal use only. See proprietary restrictions on title page. 6 Alternative Scenario: VoIP Emergency Calls with LIS Assist to Obtain LO & Routing Includes query to LIS for LO and routing information. See notes page. PSAP E9-1-1 Selective Router UA or IP device ESGW LGS SRDBALI DB 2. Query (client ID) 3. Response (LO, sos@us.st. ESRN) VoIP domain(s) Emergency Services Provider Network Call server 1. VoIP Call Setup (sos@domain, client ID, LIS ID)sos@domain 4. VoIP Call Setup (sos@us.st.ESRN, tel.url *, LO)sos@u ESGW = Emergency Services Gateway (signaling and media) LGS = Location Gateway Server ESQK = Emergency Services Query Key 5. CBN *, LO, ESRN,, VoIP Provider ID(s) or History 7. Call Setup (Cd=ESRN, Cg=ESQK) * Call server & ESGW must map “client ID” to a valid Call Back Number 8. ESQK 9. ESQK 6. ESQK 10. ESQK 11. CBN, LO, VoIP Provider ID(s) or History? 12. CBN, LO, VoIP Provider ID(s) or History? LIS

7 VoIP Migration (Intermediate) Proposal – nba Telcordia Technologies Proprietary - Internal use only. See proprietary restrictions on title page. 7 VoIP Location Validation & CBN Updates VoIP Location Information Server (LIS) requests validation of location objects against MSAG and obtains routing information for the associated Emergency Services Gateway (ESGW)/PSAP. LIS sends location updates for local CBNs. PSAP E9-1-1 Selective Router User Agent/ IP device ESGW DHCP CBN = Call Back Number LO = geographic or civil location object ESRN = Emergency Services Routing Number/Information (non-dialable), e.g., npa911xxxx, for routing to ESGW (and to identify PSAP) 1. Loc. Valid. request (LO) SRDBALI DB DBMS MSAG 2.LO 1 3. us.st.ESRN 4. Loc. valid. resp. (us.st.ESRN) VoIP domain Emergency Services Provider Network Call server LIS 5. Location updates (CBN, LO) 6. Loc. update. resp. (success) 7.CBN, ESN 8.CBN, ESN

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