We are trying to connect to a device in SPP. The device sends an "AT+RFCOMM=?" command three times after it closes the SPP link. I couldn't find any documentation about this command and how to respond.

Is there a way to manage the opening of this SPP link?

I'm assuming the device is looking for the serial channel, which is 1 in this case, but I couldn't figure out how to respond.

I'm using a Blugiga WT32i-A. Here is the Bluetooth Service Discovery Profile (SDP) of the device I'm trying to communicate with.enter image description here I know it's little information, unfortunately, I can not disclose any information about this device.