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  • 1.  How to set dynamic values to custom SIP headers in Genesys Cloud CX (not through x‑User‑To‑User in Set UUI Data action)? Is that possible?

    Posted 02-23-2026 23:26
    Edited by Mutthukumar GM 02-23-2026 23:32

    Context for the Community

    • In Genesys Cloud CX, the Set UUI Data action in Architect flows allows you to embed values into the x‑User‑To‑User header.
    • This works fine for passing ABC/XYZ or other participant data, but it results in values being encapsulated inside x‑User‑To‑User rather than appearing as standalone custom SIP headers.
    • The requirement is to send dynamic values directly into custom SIP headers (e.g., X‑ABC, X‑XYZ) without relying on x‑User‑To‑User.

    What I've Observed

    • External Trunk configuration supports adding custom SIP headers, but those are static values only - they don't resolve Architect variables at runtime.
    • Architect Transfer to External Number/Trunk actions allow adding SIP headers, but again, the binding options are limited.
    • Documentation suggests that outbound dynamic headers are generally supported only via UUI (x‑User‑To‑User).

    Clarification Needed

    1. Is there a supported way to bind dynamic participant data variables directly into custom SIP headers (e.g., X‑ABC, X‑XYZ) in Architect?
    2. If not natively supported, is the recommended approach to continue using Set UUI Data and encapsulate values inside x‑User‑To‑User?
    3. Are there any roadmap items or workarounds  that allow dynamic custom SIP headers outside of UUI?

    #ArchitectFlow #ExternalTrunk #SIP #SIPHeader #customSIP header


    #ArchitectandDesign

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    GM
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  • 2.  RE: How to set dynamic values to custom SIP headers in Genesys Cloud CX (not through x‑User‑To‑User in Set UUI Data action)? Is that possible?

    Posted 02-24-2026 08:37

    Hey GM - 

    If you're using BYOC and have an SBC in the call path, there is a workable option.

    From all that I have found, Genesys Cloud will only send dynamic outbound data via UUI, but a capable SBC (AudioCodes, Ribbon, Oracle, etc.) can parse the UUI payload and rewrite or fan that data out into custom SIP headers (for example X‑ABC, X‑XYZ) before forwarding the call downstream.

    So while Architect can't natively generate dynamic custom SIP headers, this could be solved by letting Genesys send UUI as designed and handling header transformation on the SBC. That approach could work when BYOC is in use, but the final UUI->header logic lives outside Genesys Cloud.



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    Tony Freestone
    Contact Center Applications Manager
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  • 3.  RE: How to set dynamic values to custom SIP headers in Genesys Cloud CX (not through x‑User‑To‑User in Set UUI Data action)? Is that possible?

    Posted 02-25-2026 09:44
    Unfortunately, currently for "Sending" only UUI is available.
    For incoming calls, we can use "Get Raw SIP Headers" or "Get SIP Headers".
    I found the articles below on the ideas portal.
    Unfortunately, for now, the status is "Future Considerations".

    https://genesyscloud.ideas.aha.io/ideas/SSAAOB-I-365

    https://genesyscloud.ideas.aha.io/ideas/INB-I-571



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    Kaio Oliveira
    GCP - GCQM - GCS - GCA - GCD - GCO - GPE & GPR - GCWM

    PS.: I apologize if there are any mistakes in my English; my primary language is Portuguese-Br.
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  • 4.  RE: How to set dynamic values to custom SIP headers in Genesys Cloud CX (not through x‑User‑To‑User in Set UUI Data action)? Is that possible?
    Best Answer

    Posted 02-26-2026 10:42

    Hi Mutthukumar! Your question has an answer on the newest episode of the Q&A Show. Chapter marker 6:13. Hope this helps you! 



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    Nicole Milliken
    Senior Online Community Video Specialist
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  • 5.  RE: How to set dynamic values to custom SIP headers in Genesys Cloud CX (not through x‑User‑To‑User in Set UUI Data action)? Is that possible?

    Posted 02-26-2026 11:03

    Thank you so much for the effort and time to answer this :-).

    A great community.



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    GM
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    Original Message


  • 6.  RE: How to set dynamic values to custom SIP headers in Genesys Cloud CX (not through x‑User‑To‑User in Set UUI Data action)? Is that possible?

    Posted 02-26-2026 12:11

    Hi Nicole,  

    Wow, very cool.... this sessions will be open anything people? 



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    Kaio Oliveira
    GCP - GCQM - GCS - GCA - GCD - GCO - GPE & GPR - GCWM

    PS.: I apologize if there are any mistakes in my English; my primary language is Portuguese-Br.
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    Original Message


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