SIP trunking
By replacing traditional ISDN before the planned shutdown, SIP trunks provide your business with flexible, stress free and cost-effective communications delivered over the internet.
The big switch off from BT has already begun, and from 2025 all UK businesses will need to have migrated to SIP. ISDN will no longer be available after 2025; why leave it until the last minute, speak to Red Rock and get your ISDN circuits migrated now.
