Designed for Voice over IP

Business-class broadband with performance SLAs approved for voice. SDSL M provides a fully uncontended and symmetric service, supporting up to 15 simultaneous VoIP SIP calls. Ideal for the IP telephony requirements of any small business or indeed any other time-critical applications. With the same upload and download speeds and none of contention you get on all other broadband services (including fibre broadband), this is product of choice for a dedicated Voice over IP connection.

*Free connection and router subject to minimum 24-month minimum term.

Need more advice on how to choose the best circuit for your business?

Either give us a call on 020 7501 3333 or 0800 319 6363 alternatively fill in your details using our contact form here and one of our consultants will be in touch.

SDSL M is perfect as a dedicated circuit for your IP voice telephony needs. If you would prefer a single circuit solution to support both your voice and other internet data requirements then talk to us about our converged voice and data solutions. We specialise in supplying ‘Voice Assisted’ and ‘Voice Approved’ connectivity, providing assured voice quality by using the necessary end-to-end quality of service (QoS) network configurations and performance service levels.

SDSL M products are affected by the quality and cable length of the copper bearer line used to deliver the circuit. The further a site is located from the telephone exchange, the lower the stable speed that will likely be attained. To provide a more stable connection with low error rates, it may be necessary to adjust the maximum sync rate of the circuit and therefore the maximum throughput target may be reduced from 2Mbps to e.g. 1.5Mbps, 1.0Mbps or 0.5Mbps.  A SIP or VoIP call over broadband will typically use around 110Kbps. 0.5Mbps will therefore support 4 simultaneous calls.