Configuring 3CX for use with Dial 9 SIP trunks

Dial 9 SIP trunks will not currently work with the free version of 3CX.

The following guide is to assist with getting your Dial 9 SIP trunks connected to your 3CX system and is written with the understanding that you have already configured your Dial 9 SIP trunks within the Dial 9 Portal. We do have another guide to help with setting up Dial 9 SIP trunks.

Once your SIP trunks are configured within the Dial 9 portal please log into your 3CX management console.

Setting up the inbound trunk

• In the 3CX management console please select SIP Trunks (Voice and Chat within 3CX v20+) > Add SIP Trunk.
• In the country and VoIP provider dropdown menus please select Generic and then Generic SIP Trunk.
• For main trunk number please enter your Dial 9 SIP trunk telephone number.
• In the Enter name for Trunk field please enter Dial 9 Inbound SIP.
• In the Registrar/Server/Gateway Hostname or IP field please enter the SIP Server IP address (you can see the IP address to add in the SIP Servers area in Dial 9 Connect, on the right-hand side) for this information).
• Specify the number of simultaneous calls allowed, this would match the number of SIP channels you have through Dial 9.
• Leave the authentication type as IP based.
• Specify the routing for any calls coming through on this trunk number.
• Press OK at the top of the screen.

Setting up the outbound trunk

• In the 3CX management console please select SIP Trunks (Voice and Chat within 3CX v20+) > Add SIP Trunk.
• In the country and VoIP provider dropdown menus please select Generic and then Generic SIP Trunk.
• For main trunk number please enter your Dial 9 SIP trunk telephone number.
• In the Enter name for Trunk field please enter Dial 9 Outbound SIP.
• In the Registrar/Server/Gateway Hostname or IP field please enter sip.dial9.co.uk.
• Specify the number of simultaneous calls allowed, this would match the number of SIP channels you have through Dial 9.
• Leave the authentication type as IP based.
• Specify the routing for any calls coming through on this trunk number.
• In the Caller ID tab please enter your Dial 9 SIP number in the Configure Outbound Caller ID field. We recommend using E.164 format for outbound caller ID entries, i.e. 441234567890.
• Press OK at the top of the screen.

Setting up the Outbound Rule

• Select Outbound Rules > Add.
• In the Rule Name field please enter Dial 9 Outbound Rule.
• Under the Apply this rule to these calls heading you can either add 0 to the Calls to numbers starting with prefix field or select to +Add an extension group if you have extensions and groups already configured.
• Under the Make outbound calls on heading, select Dial 9 Outbound SIP in the first drop-down for Route 1 and then select 1 in the drop-down for Strip Digits, then enter 44 in the Prepend field.
• Press OK at the top of the screen.

Your 3CX system is now configured to send and receive calls using your Dial 9 SIP trunks.