SIP trunks
Our SIP trunks offer businesses a cost-effective, reliable and resilient way to make calls over the Internet.
Every business is looking to reduce costs and increase profitability.
PSTN and ISDN line services can be expensive and inflexible but have, until recently, been the only viable method of providing high grade telephone lines to a business’s telephone system/PBX. However, SIP trunks can now be used to complement or entirely replace your existing ISDN or analogue public telephone network (PSTN) lines by providing the ability to make and receive telephone calls through the Internet.
South West Communications Group’s SIP trunk services create a connection between a PBX and the Internet (without traversing the public Internet) allowing voice calls to be made and received over a simple broadband line (or any other IP connection such as a leased line).
This SIP service is only used for calls and therefore there is no risk of loss of quality by being also used for data transfer or web browsing activities.
South West Communications Group offers two standard packages, plus a bespoke service, to ensure that businesses of all sizes can enjoy the benefits SIP can bring without any compromises.
These SIP Lite, Premium and Bespoke services are business-class solutions offering resilience and guaranteed throughput providing the ability to interconnect with existing voice networks worldwide.
Benefits of SIP trunks:
Reduced costs – South West Communications Group’s SIP trunks mean greatly reduced ongoing rental costs - it is significantly cheaper to rent 10 SIP channels than it is to rent the equivalent in ISDN or PSTN lines.
Free calls between company sites would also considerably cut costs as well as the reduction that comes from not having to use all of the public service telephone network when making calls.
In addition, South West Communications Group can offer greatly reduced call charges at highly competitive rates between all of its SIP customers. Any moves, additions or changes can also be achieved more cost-effectively.
Flexibility - South West Communications Group can provide its SIP service far quicker than ISDN lines can be installed. It can also port any BT or Virgin Media (NTL/Telewest) number to retain continuity and there is no need to pay for call redirection charges when relocating as businesses can take their number with them, creating a number for life.
SIP numbers are attached to IP addresses rather than telephone exchanges and are truly flexible in that an office can be relocated to the other side of the world and there would be no outward change to the customer dialling the number.
This means there is no longer a need to pay for a non-geographical number, such as 0845 or 0870, to disguise where you are based and where your callers typically pay a premium to dial. Businesses can choose to use up to five different geographic area code number ranges to create the image of a local presence or a national footprint.
This local/national image can be further enhanced by a business choosing which area code number is presented when making an outbound call, again disguising their exact physical geographic location. However, South West Communications Group also provides full support of emergency services whereby in the event of a 999 call being generated, a business’s exact location can be identified.
Resilience - This is a highly secure, resilient and reliable fully managed end to end solution that is run over a private section of the Internet that can never be intercepted by the public.
In the event of a disaster, such as flooding or fire, South West Communications Group can provide a call redirection service whereby all inbound calls will be rerouted to a pre-registered telephone number free of charge (see our billing fact sheet for more details). However, South West Communications Group would also recommend the retention of an ISDN or PSTN back-up line in the rare event of failure.
