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UUI SIP Header
Defines the value to be sent in the UUI header, and can be built using free text or variables from which the value will be included.
The UUI standard SIP header is typically used to carry short pieces of information that are relevant to be shown to users receiving a given call, or that may inform a target system to better route the call to the appropriate team or user.

Example use cases:
- When a call handled by Autopilot is escalated, it may need to be routed to an external system and should include UUI context about the subject or call identifier to help the target system route it more effectively.
- Building a Studio flow that collects the customer tax number and uses it to check if the customer is a subscriber. If not, route the call to another system, but include the collected tax number in the UUI header so it is visible to the user on the target system, and they don't have to enter it again.
Notes
- The values set on the Set SIP Headers component can only be sent on calls placed from one of these components: Forward to External Number Component, Make Outbound Call, Request Callback from Queue, and Request Direct Callback.
- UUI can always be set but will only be applied on calls sent from Bring Your Own Carrier (BYOC) numbers and not for Public Switched Telephone Network (PSTN) numbers.
- The UUI will not be applied on agent-transferred calls and on forward to agent's external devices.
- The data’s maximum length is 256 bytes.
The UUI data will be encoded according to RFC 7433.
Updated 16 days ago
