N3 Cloud Services
Unified Communications is the integration of real-time communication services like WebEx and MeetMe.
N3 Mobile Health Worker offers key benefits to clinicians on the move by increasing their efficiency, which results in improved patient care.
Connect to N3 through IPstream & Business DSL – intended for GPs, small clinics & temporary sites. Connect up your main and branch sites with our VPN solutions.
N3's remote worker services for NHS users – connect to N3 wherever you are.
Private Circuit and Ethernet connectiions for larger NHS sites that run applications like Choose & Book, electronic prescriptions and PACs.
The new Healthcare Security Token enables AQPs and non-NHS organisations to access patient information and national NHS applications like Choose & Book and other services from anywhere.
The N3 PSN products enable customers to connect to N3 PSN. These products are based on non-resilient DSL and non-resilient Ethernet services.
Quick summary of N3 features, benefits and technology.
IP Address ranges used by the NHS; legacy, policy and user requests.
Physical security, securing patient data and responsibilities, plus security checklist.
nhs.uk domain, internal vs external DNS and record change requests.
Order an N3 service, fund my N3 connection, migrate my N3 connection, manage a change to a CoIN, Contact N3 and raise a complaint.
The N3 user guides will help get the best from your N3 products and services.
Frequently Asked Questions will give you answers to voice services, security, internet gateway, GP NGA and general queries.
Access N3 product and service brochures about voice services, video and web conferencing, Mobile Health Worker, On Demand Compute and VPN.
Register for the latest N3 events including the N3 User Forum.
Read the latest N3 case studies that demonstrate the cash releasing, innovation, productivity improving potential of N3 products and services that can improve clinician's efficiency and patient experience.
The N3 Event Replay site is regularly updated with videos and presentation material from our User Forum events.
New to N3?
Find out how N3 has helped enable 21st Century healthcare for the NHS and is an enabler for innovative IT solutions such as using video conferencing for a telestroke service.
Find out how N3 are delivering high quality services with service delivery processes conforming to best practices.
We are in constant dialogue with our customers about the service they receive from us. Find out how N3 analyse and act on customer feedback.
N3 are very proud of the many awards that we have won over the last few years. Find out what awards we have won that demonstrate the excellence of our network, our services and our commitment to the NHS.
N3 is enabling sustainable benefits for the NHS, by stimulating a change in the way people work, providing accessibility to national applications to enable local services and reduce wastage and using new technologies to enable collaborative working
QoS General Overview
Quality of Service (QoS) is a data network solution that prioritises network traffic, to ensure that key traffic has precedence over less important traffic during times of congestion.
QoS on N3
The N3 Network has a 6 layer QoS (Quality of Service) scheme. The diagram below shows the set-up. The grey pipe is the overall bandwidth available for a given section of the network. Each QoS class of traffic has a priority and a contracted bandwidth - a percentage of the overall bandwidth (data rate), shown by the smaller coloured pipes. When the network or parts of it are congested - operating close to or at maximum bandwidth - QoS decides how traffic is handled.
The layers are often known as QoS classes and they're designed to cater for the wide variety of traffic types found on a network such as N3, where they're used as follows:
EF - VoIP Telephony
The highest priority class - provides a (normally) small amount of dedicated bandwidth with an assured performance for telephony.
AF1 - Bulk Data Transfer
Used for applications that mainly move large volumes of data or data that is not ‘real time' critical. Examples include:
- Overnight server backups to data centres
AF2 - Community Applications
Used within a local or regional NHS natural community for transactional (interactive) applications. Examples include:
- Locally hosted GP Systems
- SBS Finance System (Shared Business Services)
- IPSEC (N3 VPN) local site to local site
AF3 - National Applications
Used for strategically significant transactional (interactive) applications. Examples include:
- NCRS (National Care Record Service) to and from the BT NASP data centre, including, but not limited to:
- SSB (Spine Security Broker)
- IA (Identity Agent)
- PSIS (Personal Spine Information Service)
- EBS (Electronic Booking Service) a.k.a. Choose and Book
- LSP CRS (Care Record Service applications offered by each LSP) including, but not limited to:
- GP EPR
- Clinical Systems
- Emergency bundles
- Ad-Hoc image requests
- ESR (Electronic Staff Record)
- Remotely hosted GP Systems
AF4 - Media Streaming (Multimedia + VoIP signalling)
Used for e.g. video-conferencing traffic.
DE - Default (all other traffic not assigned to a QoS Layer)
The remainder of traffic not assigned to any QoS class and thus the lowest priority traffic. Internet Gateway traffic is carried as DE across the N3 network.
QoS manages available bandwidth by prioritising certain traffic over other traffic. the Health and Social Care Information Centre sets the overall QoS policies applied to different parts of the N3 network. There is an annual ‘QoS Refresh' programme, where the Health and Social Care Information Centre work with N3SP to ensure the QoS policies remain optimal for NHS clinical and business operations.