Configuring FreePBX for use with Dial 9 SIP trunks

This guide was written and tested using FreePBX 14

The following guide is to assist with getting your Dial 9 SIP trunks connected to your FreePBX 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 FreePBX admin area.

Select Connectivity > Trunks.

Setting up the trunk

• Select +Add Trunk.
• In the General tab enter Dial_9 in the Trunk Name field.
• In the PJSIP Settings please set Authentication to None, Registration to None, and then enter the SIP Server as sip.dial9.co.uk and set the SIP Server Port to 5060.
• In the Advanced tab within PJSIP Settings, set DTMF Mode to RFC 4733 and Qualify Frequency to 0.
• You can now press Submit to save these settings.

You should use E.164 format for outbound caller ID entries, i.e. 441234567890.

Setting up inbound routes

Select Connectivity > Inbound Routes.

• Select +Add Inbound Route.
• In the Description field, please enter Dial 9 Inbound Route.
• In the DID Number field, enter your Dial 9 number, ensuring it matches the Destination Username entered in the SIP URL in the Dial 9 portal.
• Use the Set Destination field to select the destination for the number. This could be a menu, call group etc.
• You can now press Submit to save these settings.

Setting up outbound routes

Select Connectivity > Outbound Routes.

• Select +Add Outbound Route.
• In the Route Settings tab in the Description field please enter Dial 9 Outbound Route.
• Next to Trunk Sequence for Matched Routes please select Dial_9.
• In the Dial Patterns tab please match the screenshot below:
• You can now press Submit to save these settings and then Apply Config.

A note on emergency service calls

When sending emergency service calls (i.e. 999) through your PBX, you must send the dialled number as just 999. For handling 112 calls (the European emergency services number), you must transpose 112 to 999 directly.