VoIP over VDSL is a long-term risk to business continuity despite many company leaders rating the technology as adequate.
The crux of the issue is a lack of QoS guarantees for VDSL which leaves businesses vulnerable to poor voice quality with no route to resolution, according to comms provider Spitfire.
Spitfire says the situation is set to worsen as more public Internet services such as Amazon Prime, Netflix and digital TV are prioritised.
And users wanting to upgrade to Ethernet connectivity for VoIP can be faced with deployment lead times of up to a year for Ethernet circuits.
The answer, says Spitfire, is a complete end-to-end SIP service run over a wholly owned IP and TDM infrastructure.
Harry Bowlby, Spitfire's joint MD, commented: "Businesses that choose a VoIP solution without appropriate QoS guarantees are gambling with their future. VoIP over VDSL is a significant potential risk to UK business."
Graham Lewis, Spitfire's Director for IP Engineering, has written a white paper on the issues raised in this article.