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Notruf is an single emergency line for German networks that uses geolocation to collect and store a caller's information. The information collected includes party location and call center location/numbers. |
Notruf |
uses Ribbon SBC call processing to collect information from the caller. Within this context, the primary objectives of this feature is to insert calling party location information, and to provide a dialed emergency number translation (if needed) for emergency calls within German networks. |
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This document covers the feature for interconnect deployments. | ||
The SBC is deployed in |
customer |
networks as a Centralized Policy Server (CPS). |
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, as follows:
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The latest update to the specification specification "BNetzA Technical Guideline for emergency calls (TR Notruf) Version 2 May 2018" specifies the enhancements for SIP interface when the PSAPs are upgraded to SIP interconnect. This specification adds the requirement to pass the UUI information in the SIP "user-to-user" header and introduces additional location information in the form of GeoLocation headers (RFC 6442) and PIDF-LO XML data (RFC 5491).
The Access and Interconnect deployment models are considered for the German market include both Access and Interconnect, and the German market , which requires support for both Notruf 1.0 and 2.0 specifications for specifications for emergency call handling in by the Ribbon SBC.
- The Access deployments require the Ribbon SBC to support SIP calls from the UEs and add the configured location information and route the calls to respective PSAPs.
- Interconnect deployments where the Ribbon SBC may not add the location information on its own, but will relay the information provided by the access nodes. It may be required to interwork the Notruf formats based on the protocol towards PSAP.