What is SIP trunk?

A SIP trunk is a virtual connection that links your own on-premise PBX to the public telephone network over the internet, replacing physical ISDN lines.

Choose a SIP trunk when you want to keep an existing 3CX, Asterisk or Mitel PBX through the 2027 switch-off. Silux Call supplies UK number ranges, fraud monitoring and 4G failover on its trunks.

Also searched as: sip trunking, sip channels, voip trunk.

See it in Silux Call.

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