SIP trunks | A cost-effective alternative to ISDN | Leading SIP trunk provider.
Get a Quote

SIP Trunks

A cost-effective alternative to ISDN.




Key Points

  • Flexibility with phone numbers
  • Business continuity
  • Line rationalisation
  • Save money
  • Resilience

Order Now 1800 819 888

Support 1800 789 789

A cost-effective alternative to ISDN

SIP trunking is rapidly replacing ISDN services and Magnet is the Ireland’s leading SIP trunks provider. Our SIP trunks connect your site directly into the Magnet network via an IP connection to carry and terminate your inbound and outbound voice calls across the public telephone network.

How does it work

Magnet Networks SIP Trunks connect your PBX to Magnet Network’s network, enabling full PSTN breakout on the public telephone network. Connection from your site (or sites) to our network is via an IP connection (for example broadband or Ethernet) and is delivered as an end-to-end service with an availability guarantee, voice channel guarantees and voice Quality of Service.

SIP Trunks Diagram

The benefits of SIP trunking

Flexibility with phone numbers

SIP trunking enables you to move office and keep the same geographic number without any ongoing call-forwarding costs or those associated with producing new company stationery.

Business continuity

If your office has to be temporarily relocated in an emergency, this can be achieved quickly and cost-effectively with SIP trunking to keep your business working.

Line rationalisation

For businesses with multiple sites, SIP trunking provides the opportunity for line rationalisation and reduces the number of PBXs you need to maintain – while retaining full control of the numbers associated with your business.

Save money

IP connectivity costs less than ISDN with lower call costs, free internal calls between extensions and offices and lower line rental costs for multi-sites. Also, no expensive call-forwarding costs are required should you relocate or need to divert calls in the event of a disaster.


SIP trunking provides a phone service that will cope with any situation and give you business-grade resilience for your telephony. Whether you need to keep your business running in a disaster or emergency or you need to load balance your calls between sites during peak hours, SIP trunking delivers.


stuff4cakes-magnet voice

It gives us the power of an enterprise call centre online, at a fraction of the expense

Brendan Corbett, Stuff 4 Cakes

Ask More About...