SIP Trunking

Explore more flexibility at a lower cost with Alfonica SIP Trunks

Replace rigid, expensive ISDN solutions with flexible Alfonica SIP Trunks. Organisations can find their operations restricted by inflexible and expensive inbound/outbound voice calls services if delivered via traditional ISDN.

Alfonica SIP Trunking is a great solution for these issues, offering a lower cost per channel than ISDN. SIP trunking also provides more flexibility for geographic telephone numbers on how and where they can be used, as welI as greater reliability.

Benefits of SIP Trunking and Call Management

SIP Trunking puts you in control of your business communications, offering flexibility and substantial cost savings.

Free calling

Take advantage of free call termination to UK fixed destinations and enjoy free calls between connected sites including international locations.

Secure numbers

Move premises with ease (even outside of your geographical area) with our
built-in number flexibility that allows you to keep existing numbers.

Legacy proof

Be reassured that SIP trunking can be used with existing ISDN connection to ensure that any transition is seamless.

Big savings

Experience savings of up to 50% on line rentals and 25% or more on call costs compared to traditional ISDN.

Costs cut

Use SIP Trunks to reduce the number of ISDN connections required, while lowering PBX maintenance costs.

SIP solutions for your business

Choosing SIP Trunking means that you'll benefit from a wide range of advanced features for effective, flexible and reliable communication.

Scalable Lines

Upsize or downsize lines depending on your seasonal or marketing campaign needs, all while keeping your existing numbers.

Full integration

Take advantage of SIP trunking's full integration with existing business networks and applications.

Resilient Services

Reroute calls to an alternative location quickly and easily with SIP trunking's built-in disaster recovery and business continuity capabilities.

Phones Lines and PBX estate rationalisation

For businesses with several location, our SIP trunk services provides ISDN lines rationalisation - the ideal way to reduce the number of IP PBCs requiring maintenance.

Business Continuity

Buinesses of all sizes need a continuity plan for telephony. Combine our SIP trunks with out invond service and your calllers will always get though. Set automated call plans or simply divert published numbers to backup locations or mobile devices - instantly and from anywhere.

Complete Control

Deploy SIP Trunk Call Manager to combine SIP with our web-based portal/app service and take full control of invound calls.

Affordable resililience

If you've ever had to deal with a service outage you'll know that a quick response is key. Our active/standby and load sharing designs maintain telephony uptime. Whether you need to keep your business running in an emergency without the high cost of call forwarding or simply need to balance call loading between sites during peak, SIP Trunks provide a business grade solution.

Do you want to find out more? Get in touch!

trunking enables you to connect to the public telephone network to send and
receive calls via the Internet. It supports VoIP and can be used as an
effective replacement for an ISDN line. The latter is an important point to
consider as BT has announced the phasing out of ISDN lines over the next five
years. So, it is worth bearing in mind for any potential changes to your phone
system that you are planning.

Trunking is a flexible, scalable and powerful way to combine voice, data and
video into a single line, but how does this benefit your business?

Cost savings

you will need to invest in a new PBX system that can handle SIP-based calls, or
convert your existing one, this investment will soon be recouped with cost
savings. These will come from reduced line rental and maintenance costs as well
as giving you free calls to geographic numbers within the UK.


switching to SIP Trunking you are more able to cope with changing business
circumstances. Whether this is adding more lines quickly and easily as your
business grows. Or, the capability to cope with disaster recovery or holiday or
peak periods.

Future proofing

Making the change to SIP Trunking will ensure your business is able to cope with future changes in technology, like the upcoming discontinuance of ISDN. Moving to IP-based telecoms will give you access to more choice of solutions and equipment and allow your business to integrate its existing systems like CRM and IT to ensure an end-to-end solution that will help you improve customer service and employee efficiency.

If you
would like to find out more about SIP Trunking or discuss your current telecoms
setup, please feel free to give us a no-obligation call. We will be happy to
talk you through the options.

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