Cost-effective Convergence

The Importance of QoS All information being transferred across network travels in packets which reassemble themselves to their original format on reaching their destination.

Voice travels in exactly the same manner as data traffic; however it is more important for the voice packets to travel in the correct order and reassemble sequentially and without interruption. Any interruption to the flow of voice traffic, even marginal time delays, results in a broken sounding poor quality reception of the call.

Quality of Service, commonly referred to as QoS, is the ability to prioritise the flow of traffic across a network. QoS is vital in allowing smooth travel of voice packets across the network, in effect QoS provides a bus route and a 'right of way' to the identified traffic. Several 'classes of services' (bus lanes) can be applied to each circuit and different precedences set on each.

QoS over DSL

At NetServices we consider ourselves experts in DSL technologies. Having built our business in wholesale broadband, NetServices purchased Telefonica's DataStream (non-contended) network from them making us one of a handful of providers in the UK with both the IP Stream and DataStream networks. In developing our range of voice products, NetServices have gained valuable expertise in the delivery of voice over IP networks.

Voice flow requires equal bandwidth in both directions, so the need for symmetrical bandwidth is greater than with data; for which bandwidth demands are generally more one way (i.e. downstream). QoS is a highly valuable feature for key applications e.g. prioritising voice traffic / EPoS above other data applications on the network between a head office and retail branch office or remote worker.

NetServices offer QoS on both the DataStream and IPStream networks.(link to DSL Technology sheet) Capabilities have been designed to provide a low cost access technology suitable for deployment to locations where data prioritisation is required, but where the use of traditional leased line and Ethernet circuits are cost prohibitive. QoS over DSL has a considerably shorter term of contract, minimal installation fee and faster lead times than traditional leased line and Ethernet technologies.

QoS is utilised in a number of NetServices products including our converged NetTalk offering, Wires Only networks QOS DSL VPN Services.

Applications of QoS over DSL

QoS over contended DSL can be utilised within any number of situations and provides a cost-effective solution where previously it may not have been commercially viable. Examples include;

Use it within solutions to the retail industry making a converged network for voice and ePoS feasible.

Business quality voice can be delivered into branch sites and to remote workers, the QoS feature ensuring that call quality is not spoiled by simultaneous data transfer.

Short lead times and minimal contract terms means that transient sites can be serviced e.g. construction and leisure industry.

Systems integrators provide consultancy on Managed MPLS VPN networks to deliver Hosted IPT solutions. Unique MPLS VPN networks use QoS over IPStream and QoS over DataStream that are QoS over broadband services. MPLS VPN broadband services are critical in delivering IP Trunking (SIP) these services are provided and managed by IP Carriers and SIP Carriers. Short term Hosted IPT solutions with Managed IP trunks require QoS IPStream and for longer term install QoS DataStream services are recommended. Converged broadband installations for Video services use QoS DSL and QoS ADSL technology to enable economical delivery of managed video network solution that includes Video over mobile using mobile broadband technology allowing complete Converged video networks. This unique capability of being able to provide managed MPLS VPN, Converged MPLS VPN and MPLS VPN services ensures NetServices will remain a key system integrator in the Video and managed network markets. Managed Mobile Networks that deliver mobile leased lines can now from part of managed integrated mobile WAN solutions. Managed mobile data services are available in providing synchronous mobility data services and are instantly available for mobile disaster recovery (DR). In the simplest form managed mobile networks that deliver mobile leased lines are a replacement to a fixed line installation if the installations are temporary, mobile or instantly needed.