Actually we got an explanation from the TAC and unfortunately it seems that in our situation the "Device not entitled" error is the correct behavior (on-premise endpoints registered on our CUCM); below the answer from the engineer:
"This API is only available for cloud registered devices or WebeX Edge registered devices, and this is the error expected if you are not."
12.6 ES03 release which has important updates for the VPN-Less feature has been released. The changes and configuration details can be found on the TechNote page for the release.
VPN-Less Finesse provides...
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Parsec's MARS CRM Connector application works as a bridge between CRM & Cisco UCCE / PCCEThe CRM user will have the capability to handle both incoming & outgoing callsInbound Call indication/Popup on CRM screen with customer/caller number and name...
Audio and Video Endpoints Knowledge Base
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