| SIP trunk | sip-trunks | phone-lines (dashboard Phone lines, subtitle SIP trunk) | Kinds are sixtydb (a 60db Dialer number) and byo (your own SIP). See Bring your own SIP |
| Agent id | integer | UUID | The HelloKit id is internal and never exposed |
| Knowledge collection | knowledge_collection | knowledge_collection_id (UUID) | A workspace Smart Memory collection. Personal User_... collections are unsupported (422 KNOWLEDGE_COLLECTION_UNSUPPORTED). See Knowledge for agents |
| Customer knowledge endpoint | knowledge_webhook_url and knowledge_webhook_secret | knowledge_webhook_url only | Signed with the agent’s whsec_... secret, the same one used for tool and event webhooks. There is no extra secret field |
| Webhook signature headers | x-hellokit-* | X-60db-Timestamp, X-60db-Signature | v1= plus the hex HMAC-SHA256 of {timestamp}.{raw body}. Unchanged scheme |
| Hosted SIP address | hellokit-sip.60db.ai:5060, UDP, PCMU and PCMA | The same | No TLS and no SRTP |