SIP Trunking is fast replacing traditional ISDN. It connects your PBX to the PSTN (Public Switched Telephone Network) via broadband, Ethernet or private circuit into our national network. Our SIP Trunks work seamlessly with all the leading IP PBX brands in the UK market, including Microsoft Lync.

SIP trunking vs ISDN

SIP has several advantages over ISDN, such as

  • cheaper line rental and calls.
  • add and remove lines, split calls etc.
  • calls easily diverted.
  • voice data convergence.
  • easily divert calls to your home phone in case of emergency.
  • ISDN fails because it is almost obsolete.

sip trunking vs isdn






If you are confused by all the terminology this fantastic little video will explain SIP trunking perfectly. If you have any other questions, please give Aeon office a call on 0800 8498458, our staff are happy to help. Alternatively, you could visit our SIP trunks page.