Skip to content

SIP Trunk Configuration

SIP trunks serve as input-output channels for communication with voice service provider PBXs, other PBXs or VoIP gateways (FXS, FXO, ISDN2, ISDN30, GSM). Configuration is done in the SIP channels menu. To activate, the trunk must be assigned to inbound routing.

Creating a SIP trunk

Creating a SIP trunk

Creating inbound routing

Open the routing by clicking the + button. Go to the SIP channels tab.

Opening routing

Click New record and then Assign SIP channel.

Assign SIP channel

Select an available SIP channel from the list.

Channel selection

Assigned channel

We have now created a new SIP trunk and assigned it to inbound routing. To be able to receive calls, you still need to configure rules in the inbound routing. For outgoing calls, you need to configure outbound routing rules.

© 2026 VoIPSUN s.r.o.