I have an Integra M2106+ with FW:657 connected only with Tx and Rx lines.

When activating WMUX mode with AT+WMUX=1 command, the IFC configuration is set to IFC=2,2 whatever the previous IFC configuration in normal mode.
No matter the value I try and configure (AT+IFC=0,0, for example), the modem stay with the 2,2 configuration thou it returns me an OK.

The problem when working like that, is that the modem doesn’t return complete replies, in what appears to be a waiting for a Flow Control signal that is not connected in my system.

Is there any other way to set the modem to not having Flow Control in WMUX aside from the one former one?

Thanks in advance

Israel Pavón