How to write custom fragments for inclusion in macros and dialplans?

[jfinstrom (James Finstrom)]

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FreePBX: How to embed my code correctly?

Colleagues, I have been working with “clean” Asterisk all my life and I’m used to being in a situation where I write dialplan code “from scratch”. Now I have a need to embed my code into an already working FreePBX installation and I don’t quite understand how to do it correctly. I really don’t want my code to be overwritten with new versions of the original FreePBХ files on the next update. I need to include code to interact with the CRM information module, which would be executed when an inco…