sessionId missing from webhook data. Event subscription: account/~/extension/~/presence?detailedTelephonyState=true

We are seeing in some cases `sessionId` is not present in the active calls data.

Example data:

OrderedDict([('direction', 'Inbound'), ('from', '<redacted>'), ('fromName', '<redacted>'), ('id', 's-0b1dddd7305b4f21aedc0b86b1fc64d5'), ('partyId', 'p-0b1dddd7305b4f21aedc0b86b1fc64d5-4'), ('startTime', '2021-06-01T19:13:53.228Z'), ('telephonySessionId', 's-0b1dddd7305b4f21aedc0b86b1fc64d5'), ('telephonyStatus', 'NoCall'), ('terminationType', 'final'), ('to', '<redacted>'), ('toName', 'Business Queue ')])

Any specific cases where sessionId will not be present?