Use extensionId as external ID, not Relay node id

Shipped

26 أبريل 2026 في 4:29 ص UTC

صاحب البلاغ

Kamo

Commit

851c3d0

FreePBX returns the same Relay id (ZXh0ZW5zaW9uOg== = "extension:") for every extension because the id field is not populated. Using it caused all extensions to share the same external ID, so only the last one survived sync. Always use extensionId (the actual extension number) as the stable key.