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Integration of Stir/Shaken into Asterisk

As deadlines for Stir/Shaken are just around the corner even other countries are considering to introduce Stir/Shaken or similar methods.

As we offer a broad range of Fraud Mitigation and Stir/Shaken APIs you can find below an example macro for Asterisk to integrate CodeB’s Stir/Shaken API.

Note: Please do not forget to replace the string “YOUR_API_KEY” with your real CodeB API Key. If you need an evaluation key kindly request one from

Integration is easy. Just add the following lines into the file /etc/asterisk/extensions_custom.conf on your asterisk server:

[macro-dialout-trunk-predial-hook] ; history 2021-07-10 first commit ; marco requires recent Asterisk versions 16/18/19 or higher

exten => s,1,Noop(Entering user defined context macro-dialout-trunk-predial-hook in extensions_custom.conf)

; setup curlopts and curl API call with call params exten => s,n,Set(CURLOPT(httptimeout)=20) ; do not try longer than 20 seconds exten => s,n,Set(CURLOPT(httpheader)=x-api-key: YOUR_API_KEY) exten => s,n,Set(CURLOPT(httpheader)=Content-Type: application/json) exten => s,n,Set(response=${CURL(${OUTNUM}&FromNumber=${CALLERID(num)})})

; check if CodeB delivered and skip to end if not exten => s,n,GotoIf($[“${JSON_DECODE(response,Identity)}”=””]?finish) exten => s,n,Set(IdentityHeader=${JSON_DECODE(response,Identity)}) exten => s,n,GoSub(func-set-sipheader,s,1(Identity,${IdentityHeader}))

exten => s,n(finish),MacroExit()

; end macro-dialout-trunk-predial-hook

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