I’m facing the same issue and haven’t been able to update the remote handle for outgoing calls. Initially, I start the call by setting the callee’s phone number as the value of the CXHandle. However, during the call, the caller can add more participants. At that point, I need to update the remote handle to store a call ID instead, so I can later retrieve it and initiate a group call from the device’s recent call logs. The problem is that updating the remote handle doesn’t seem to work, it keeps the initial value and does not reflect any changes. This issue only occurs for outgoing calls, incoming calls behave as expected. Is there any solution for this?