The drop in interconnect rates and the subsequent demise of the traditional least cost routing (LCR) model is making voice over Internet Protocol (VOIP) and Internet telephony an even more attractive proposition for businesses due to all the benefits this technology has to offer.
These include reduced telecommunication costs, as the technology allows businesses to reduce infrastructure requirements and call costs over IP networks.
This technology also gives businesses the ability to adopt a converged communications infrastructure, which paves the way for the provisioning of voice, data and video services over the Internet, all of which can be managed in a consistent and measurable manner from a single service provider.
However, Wayne Speechly, Business Development Manager; Communication Services at Internet Solutions, advises businesses to carefully consider which VOIP provider they choose to partner with. “VOIP offerings are not yet commoditised, which means there are vast differences in the quality and reliability of these services in the market, and Internet telephony solutions do not always meet the criteria required of business-critical communication services,” he explains.
“For many people, their only VOIP experience to date has been a voice or video call over Skype. However, this type of Internet calling is a 'best effort' service, which means there are no guarantees made on the quality of service or reliability of the call, which is not acceptable for business use.”
In order for businesses to benefit from the full value that VOIP services can offer, there needs to be service level agreements (SLA) linked to the quality of service of calls being terminated and the infrastructure of a network, says Speechly. “Guaranteeing network quality is a simple proposition for most service providers, but the real value lies in a service provider's ability to guarantee both on-net and off-net call quality.
In this instance, the ability to measure and report on every call, along with the uptime and performance of the network, is something that most VOIP providers cannot offer. These are the key differentiators that businesses should consider before selecting a VOIP service provider.”
According to Speechly, to deliver real VOIP, service providers need to have an appropriate carrier grade national network, as well as a number of points of presence (POPs) and interconnects. “As this service is delivered over typical IT infrastructure, it can fail, so you need sufficient interconnects to ensure availability and reliability to off-net destinations. This is important because over 90% of the call destinations are to the main incumbents. Having sufficient POPs on a national basis means that the call can connect with other providers and services in different regions more efficiently, as the number of hops it takes to terminate the call is minimised. This also means that the service provider doesn't need to carry a call unnecessarily across the country, which incurs added costs and degrades quality, as they have the most optimal geographical routing.
“There is also a need for adequate redundancy and availability on a carrier grade network to ensure the reliability of the service,” he continues, “and this carrier grade network should include a class four switch that gives the service provider the ability to route calls between customers and the destination network, be it on- or off-net, with appropriate functionality.” The architecture must also be capable of seamlessly integrating with both traditional and new-age technology capabilities. “Most of the incumbent operators don't employ the latest technology due to the fact that they have sunken investments in their existing infrastructure and need to continue to sweat these assets until they are fully written off.
“However, the growing number of new entrants into the market, who are rolling out greenfield, next-generation networks that utilise the latest technology, will ensure better quality and integration when connecting VOIP calls.”
The fact that VOIP calls are terminated across an IP network means they are also exposed to the same risks as packet data. “A network is only as good as its weakest link, so the next important element when choosing a provider is ensuring they have adequate security around their network,” explains Speechly.
“A service provider needs to secure the edge of the network and also guard against potential hacks from within, as these breaches can compromise the network infrastructure, degrade the service and impact the quality of the calls being routed across the network. It is also important to ensure that other customers don't jeopardise the quality of the experience for anyone else on the network.”
According to Speechly, the last key element that should differentiate VOIP providers is their ability to provide telco grade billing via an appropriate engine. “The ability to accurately cost and bill all calls, so that the customer can get meaningful information around their usage and spend is an essential element for business and enterprise VOIP services,” he says. “The telecommunications industry is renowned for inconsistent and inaccurate billing practices and has often exploited businesses and consumers.
“So, following the changes in the LCR market, the industry can expect competitive and possibly more aggressive price cutting on voice services, as LCR providers left out in the cold due to the changing interconnect environment augment VOIP services into their offerings.” he continues. “However, market penetration through price cutting is normally associated with sacrificed quality. As such, any business looking to enhance their corporate voice calling capabilities, increase efficiency and reduce costs by adopting VOIP services needs to be cognisant of these facts. They should also ensure that they partner with a provider who is able to effectively build out their IP infrastructure to incorporate the value added services, like unified communications and hosted voice services, that naturally follow the successful implementation and use of enterprise-ready VOIP calling,” concludes Speechly.
- ITWeb