Modify P-Asserted-Identity header for autodial callee

Hi, I’ve found quiet a few topics on this but they all seem to be old and no longer work. We are doing auto-dial calls where we need to change the outbound callee to have a custom P-Asserted-Identity header. But, have run into the following errors:

;exten => s,1,Noop("DOING PAID TEST")
;exten => s,n,Set(HASH(__PJSIPHEADERS,P-Asserted-Identity)="CUST PAID" <sip:1234567890>)
"No application 'SIPAddHeader' for extension"

;exten => s,1,Noop("DOING PAID TEST)
;exten => s,n,Set(PJSIP_HEADER(add,P-Asserted-Identity)="CUST PAID" <sip:1234567890>)
"This function requires a PJSIP channel."

What is the proper way to be adding the custom header? Thanks!

Add this to extensions_custom.conf and reload

exten => s,1,Noop()
exten => s,n,GoSub(func-set-sipheader,s,1(P-Asserted-Identity,CUST PAID))
exten => s,n,MacroExit

If you need to apply this selectively based on trunk name, there’s a hint how to do this here: Hooking for fun and income - #6 by lgaetz

Thank you, but I forgot to add that I’ve also tried that one as well and get the following response:

    -- Executing [s@func-apply-sipheaders:5] Set("PJSIP/Prisma_static-0000012f", "SIPHEADERKEYS=Alert-Info,P-Asserted-Identity") in new stack
    -- Executing [s@func-apply-sipheaders:6] ExecIf("PJSIP/Prisma_static-0000012f", "1?Set(Rheader=1)") in new stack
    -- Executing [s@func-apply-sipheaders:7] While("PJSIP/Prisma_static-0000012f", "1") in new stack
    -- Executing [s@func-apply-sipheaders:8] Set("PJSIP/Prisma_static-0000012f", "sipheader=unset") in new stack
[2023-05-15 12:08:12] WARNING[21507][C-0000014a]: pbx.c:2928 pbx_extension_helper: No application 'SIPAddHeader' for extension (func-apply-sipheaders, s, 9)

Is it possible I need to call the this from another hook so that the PJSIP header add call works?

Finally got this to work, I apparently had a typo in my original attempt:

exten => s,1,Noop("MACRO TEST")
exten => s,n,Set(HASH(_SIPHEADERS,P-Asserted-Identity)= "MACRO PAID" <sip:9990009090>)

too many ‘_’ for the _SIPHEADERS. But, now I need the FROM header to match this header. Where would I go about seeing where that is set in the CONF files and doing an update?

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