Content for TR 22.871 Word version: 11.3.0
4 Use cases
5 High level Service Aspects
6 MMI Aspects
7 Charging Aspects
8 Security Aspects
9 Conclusion
10 List of requirements for non-voice emergency services
A Emergency Services IP Network Requirements (informative)
B European specific requirements
$ Change history
4 Use cases p. 9
4.1 Use case 1 Session Based Text Message to Emergency Services p. 9
4.1.1 Short Description p. 9
4.1.2 Actors p. 9
4.1.3 Pre-Conditions p. 9
4.1.4 Post-Conditions p. 9
4.1.5 Normal Flow p. 9
4.1.6 Alternative Flows p. 10
4.1.7 Exceptions p. 10
4.2 Use case 2 Multimedia Telephony communication with real time text to Emergency services p. 10
4.2.1 Short Description p. 10
4.2.2 Actors p. 10
4.2.3 Pre-Conditions p. 10
4.2.4 Post-Conditions p. 10
4.2.5 Normal Flow p. 10
4.2.6 Alternative Flows p. 11
4.2.7 Exceptions p. 11
4.3 Use case 3 Emergency Communication to PSAP with the Addition of Media p. 11
4.3.1 Short Description p. 11
4.3.2 Actors p. 11
4.3.3 Pre-Conditions p. 11
4.3.4 Post Conditions p. 11
4.3.5 Normal Flow p. 12
4.3.6 Alternative Flow p. 12
4.3.7 Exceptions p. 12
4.4 Use case 4 Delayed Transmission of Media of an Emergency Situation Associated with Voice Communications to a PSAP p. 12
4.4.1 Short Description p. 12
4.4.2 Actors p. 12
4.4.3 Pre-Conditions p. 12
4.4.4 Post Conditions p. 13
4.4.5 Normal Flow p. 13
4.4.6 Alternative Flows p. 13
4.4.7 Exceptions p. 13
4.5 Use case 5 Transmission of Media in a Non-Voice Interaction with a PSAP p. 13
4.5.1 Short Description p. 14
4.5.2 Actors p. 14
4.5.3 Pre-Conditions p. 14
4.5.4 Post Conditions p. 14
4.5.5 Normal Flow p. 14
4.5.6 Alternative Flows p. 14
4.5.7 Exceptions p. 14
4.6 Use case 6 Communication with PSAP when voice is inappropriate p. 15
4.6.1 Short Description p. 15
4.6.2 Actors p. 15
4.6.3 Pre-Conditions p. 15
4.6.4 Post-Conditions p. 15
4.6.5 Normal Flow p. 15
4.6.6 Alternative Flows p. 16
4.6.7 Exceptions p. 16
4.7 Use case 7 Menu / Short Cut service p. 16
4.7.1 Short Description p. 16
4.7.2 Actors p. 16
4.7.3 Pre-Conditions p. 16
4.7.4 Post-Conditions p. 16
4.7.5 Normal Flow p. 16
4.7.6 Alternative Flows p. 16
4.7.7 Exceptions p. 16
4.8 Use case 8 Texting application communication to emergency services with one-way RTT p. 17
4.8.1 Short Description p. 17
4.8.2 Actors p. 17
4.8.3 Pre-Conditions p. 17
4.8.4 Post-Conditions p. 17
4.8.5 Normal Flow p. 17
4.8.6 Alternative Flows p. 17
4.8.7 Exceptions p. 18
4.9 Use case 9. Differentiating Emergency Experiences and Adding Media to a Text-Initiated Emergency Call p. 18
4.9.1 Short Description p. 18
4.9.2 Actors p. 18
4.9.3 Pre-Conditions p. 18
4.9.4 Post Conditions p. 19
4.9.5 Normal Flow of Messaging Service - text session with emergency indication p. 19
4.9.6 Normal Flow - User accidently initiates emergency text message p. 19
4.9.7 Normal Flow - PSAP adds audio or video p. 19
4.10 Use case 10 Multimedia Telephony communication mainly in Sign Language to Emergency services p. 20
4.10.1 Short Description p. 20
4.10.2 Actors p. 20
4.10.3 Pre-Conditions p. 20
4.10.4 Post-Conditions p. 20
4.10.5 Normal Flow p. 20
4.10.6 Alternative Flows p. 21
4.10.7 Exceptions p. 21
5 High level Service Aspects p. 21
5.1 General p. 21
5.1.1 Accessibility p. 21
5.1.2 Location services p. 21
5.1.3 Limited Service Mode p. 21
5.1.4 Charging p. 21
5.2 Security, reliability, and priority handling considerations p. 22
5.3 Routing considerations p. 22
5.4 Roaming considerations p. 22
5.5 Hand-over considerations p. 23
5.6 PSAP boundary considerations p. 23
5.7 Multiple media considerations p. 23
5.8 Call-back considerations p. 23
5.9 Load impact considerations p. 23
5.9.1 Large scale emergency p. 23
5.9.2 Malicious use p. 24
6 MMI Aspects p. 24
7 Charging Aspects p. 24
8 Security Aspects p. 24
9 Conclusion p. 24
10 List of requirements for non-voice emergency services p. 25
10.1 End-to-End General Requirements p. 25
10.2 NOVES Device Requirements p. 25
10.3 Origination Network Requirements p. 26
A Emergency Services IP Network Requirements (informative) p. 27
B European specific requirements p. 28
$ Change history p. 29
