In parallel with standardization processes in the area of NGN architectures, the working groups of standardization institutions concentrate their work also to standardization activities in the area of new multimedia services and applications, like:
- categorization of NGN services and applications,
- service development processes, service implementation, service control and provisioning in the NGN environment, etc.
In the FGNGN WG1 Services and capabilities document the NGN services and applications categorization structure is introduced [11]. Actual set of services defined by ITU-T is introduced in this document:
1. Interactive-based services
- Real-time Conversational Voice services,
- Point to Point interactive multimedia services, including interactive real-time voice, video, white board and other media,
- Collaborative interactive communication services – multimedia conferences with files and applications sharing, e-learning, games, etc.
- Push to talk over NGN – PoN,
- Instant messaging (IM) and Messaging services (SMS, MMS, etc.),
- Group Messaging,
- Existing PSTN/ISDN emulation and simulation services,
- Data communication services (data transmission, fax, e-mail box, etc.),
- Data retrieval applications – telesoftware,
- Online applications (e.g. E-business),
- Voice control services.
2. Non Interactive-based Services
- Content delivery services (audio video streams creation, digital TV distribution services, financial information distribution, distribution of professional and medical images, e-publishing, etc.),
- Sensor Network services,
- Push services,
- Remote control/tele-action services, such as home applications control, telemetry, alarms etc.),
- Broadcast/Multicast Services,
- Over-the-Network Device Management.
3. Both Interactive-based and Non Interactive-based Services
- Virtual Private Network (VPN) services,
- Hosted and transit services for enterprises) – IP Centrex, etc.,
- Information services (e.g. traffic services-situation on the road, train/buss tickets, advanced push services, etc.),
- Presence and general notification services,
- 3GPP Release and 6/3GPP2 Release A OSA-based services.
4. Network Services
- Basic Transport Service (BTS),
- Enhanced Transport Service (ETS).
5. Regulated Services
- Emergency Telecommunication Services – citizen-department, department-department, department-citizen,
- Lawful Intercept Services,
- Broadcast Emergency Alerting Services.
1. IP multimedia services
- IP multimedia applications,
- PSTN/ISDN simulation services – 3rd class,
- Instant messaging service,
- Presence service,
- Location service,
- Video Telephony service.
2. PSTN/ISDN Emulation services
3. Regulated services for both IP multimedia and PSTN/ISDN emulation
- Lawful Intercept Services,
- Emergency Call Services,
- Malicious Communication Identity Services,
- Anonymous Communication Rejection Services.