SIP Trunk Metadata Export Fails with 400 Bad Request for Legal Discovery

Voice & Telephony
1

Why does the bulk export job for SIP trunk recordings fails with a 400 Bad Request when including specific legal discovery fields? The environment details are as follows:

  • Region: EU-West-1
  • API Version: v2
  • Error: Invalid field format for ‘sip_session_id’
  • Context: Attempting to maintain chain of custody for voice channels
  • Impact: Export jobs abort immediately without partial data retrieval
2

Take a look at at the payload schema for the sip_session_id field, as it requires a specific UUID format rather than a raw string.

  1. Validate the input against the RFC 4122 standard.
  2. Ensure no extra whitespace exists in the JSON body.
  3. Resubmit the request with the corrected format.
3

Depends on your setup, but generally the issue stems from mismatched UUID casing in the sip_session_id field during the export trigger.

  • Normalize the ID to lowercase hexadecimal without hyphens before passing it to the Data Action.
  • Verify the ServiceNow REST endpoint accepts the specific Genesys Cloud format rather than strict RFC 4122.
4

{
“query”: “sip_session_id 400 bad request legal discovery export”
}


The suggestion above regarding UUID normalization is technically correct for standard API calls, but it misses a critical edge case when dealing with BYOC trunk metadata during failover events. When a session spans a primary-to-secondary carrier handoff, the `sip_session_id` generated by the Session Border Controller (SBC) often includes carrier-specific prefixes or altered casing that the Genesys Cloud analytics engine does not automatically sanitize for bulk exports.

Here is the specific validation logic you need to implement before triggering the export:

* **Sanitize Input at the SBC Level**: Ensure your SBC is stripping any non-hexadecimal characters from the `X-SIP-Session-ID` header before it hits the Genesys Cloud media servers. If the SBC passes `CarrierABC-123e4567-e89b-12d3-a456-426614174000`, the export will fail. It must be strictly `123e4567e89b12d3a456426614174000`.
* **Verify Failover Metadata Integrity**: During peak hours in APAC/EU regions, failover events can cause duplicate SIP IDs if the primary trunk’s state isn’t fully cleared. Check your trunk configuration under *Admin > Telephony > Trunks* to ensure "Allow Simultaneous Ring" isn’t inadvertently creating conflicting session IDs during the handoff.
* **Use Pre-Export Validation Script**: Before running the bulk export, run a small sample query using the `/api/v2/analytics/recordings/query` endpoint. If this sample query returns a 200 OK with the `sip_session_id` field populated correctly, then the issue is likely with the bulk export payload size or a transient queue timeout, not the ID format itself.
* **Check Timezone Alignment**: Legal discovery exports are sensitive to timestamp boundaries. Ensure the `start_time` and `end_time` in your export request are in UTC. Mismatched timezone offsets can cause the system to look for a `sip_session_id` in a non-existent time window, resulting in a malformed response that triggers a 400 error.

This approach bypasses the common pitfall of relying solely on client-side formatting and ensures the data integrity required for legal hold compliance.
5

Could someone explain why the bulk export job for SIP trunk recordings fails with a 400 Bad Request when including specific legal discovery fields?

Make sure you validate the sip_session_id against strict RFC 4122 UUID v4 format before sending. The API rejects non-standard casing or carrier prefixes, so normalize the string to lowercase hex without hyphens.