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SIP Trunk/ SIP Trunking SIP trunking or Session Initiation Protocol trunking is a new technology that allows a business to establish a voice communication session on a data network by replacing its existing analogue or digital telephone lines. SIP trunking connects your company’s PBX directly to the PSTN using high speed, secure and resilient Ethernet connections. Once the connection is established, a SIP Trunk provides the same service you get from a traditional analog phone line. The difference is physical wires in the trunks used in traditional telephony are replaced by a “virtual” phone line provided by a SIP trunk provider to establish a connection from the service provider to a business.

Six Degrees Group– the best SIP Trunk Provider Six Degrees Group knows that a full-scale migration to SIP trunking is inevitable. Developments such as BT’s 21CN (21st Century Network) demonstrate that the migration to a full-fledged SIP trunking environment is already underway. This is combined with carrier network upgrades that result in VoIP being used for all backhaul and core network voice transit to mean that numbers of TDM analogue and digital voice trunks are in decline. Six Degrees SIP trunking provider offers great assistance to businesses who want to take advantage of this modern technology. SIP Trunks are quick and simple to set up and with lower installation and startup costs compared to traditional analogue and ISDN telephone lines. Our SIP Trunking service can be provisioned using your existing Internet access or IP-VPN connections or via a dedicated line. We ensure high quality speech, making our SIP trunks a genuine substitute to ISDN lines.

Benefits of SIP Trunking with Six Degrees Group SIP trunking solutions are cheaper, more resilient, more flexible and more efficient than ISDN SIP trunking offers flexibility to add new lines at a much lower cost SIP trunking offers better utilization of bandwidth at lower cost for burstable trunks SIP Trunks support multiple forms of communication SIP Trunking virtual line reduces hardware requirements & line charges SIP trunking helps improve on inbound call handling SIP Trunking reduces toll charges for local, long distance and international calls SIP Trunking lowers your network administration & ownership costs over time SIP Trunking helps offers new business continuity SIP Trunking helps improve productivity

Six Degrees Group SIP Trunking Solutions Many of our MPLS customers have quality of service capable WAN links between their sites and already use their WAN for inter-site voice over IP. For those customers, adoption of SIP trunking is the next logical stage in their evolution as they already have a network that is voice ready. Along similar lines, almost every new connectivity customer of Six Degrees Group SIP trunk provider is


either undertaking a limited-scale SIP trunking rollout or is planning on doing so, even if they are not yet considering a complete ISDN replacement. Being experienced SIP trunk provider, we also recognise that the death knell for traditional voice has been prematurely rung before; meaning that direct voice or WLR is still the preferred option for many customers. For those customers, SIP trunking presents a compelling back-up service to traditional voice lines. A full or partial move to SIP – e.g. using a blend of ISDN and SIP trunks in a hybrid configuration – can be undertaken to allow customers to improve their inbound capabilities. SIP breaks the link between the DDI and the line connected to the local exchange, allowing you to be more flexible in how you handle calls. This is especially compelling for companies who need to deal with constant changes in their business. SIP trunking allows capacity to be dynamically added or reduced, depending on call levels, during the course of a business year.

SIP Trunking infrastructure at Six Degrees Group


Six Degrees Group - SIP Trunking