Loopcall and eco on Cisco SX20

Hello guys,
When we created a Conference Room Connector with API Connector for a Cisco Equipment meeting with departmental participation. After joining the meeting room, we noticed the presence of 2 identical devices in the meeting room at the same time causing loops and ecological phenomena to occur without display errors. We tried to fix it but it didn’t work and we think the error could be with the API or the device
Device : Cisco TelePresense SX20

Thank you for supporting me