Call forwarding command not recognized

MDinFL — Mon, 24 Apr 2017 16:19:42 GMT

I am on ATT in the US. The USSD command for invoking call forwarding is:

Dial **21*, followed by the 10-digit number you wish to forward the calls to, then dial #. For example, **21*1235556789# forwards your call to 123.555.6789.
Push the Call, Send, Talk, or Receiver icon.
Your wireless phone displays a confirmation message when Call Forwarding activates.

Turn off Call Forwarding
To turn off Call Forwarding and stop sending incoming calls to another number:

Dial #21#.
Push the Call, Send, Talk, or Receiver icon.
Your wireless device displays a confirmation message when Call Forwarding deactivates.

I followed these instructions and get an error message "Connection problem or invalid MMI Code"

There is a variety of webpages all with the same solutions, none of which work. I also tried using the Call Forwarding function in the OS. Same problem.

Re: Call forwarding command not recognized - Solved

MDinFL — Mon, 24 Apr 2017 17:42:51 GMT

For about 6 days, I had a Samsung Galaxy S7. It sucked and I returned it. I put the SIM from the Samsung back into the Sony. Apparently, I needed to contact AT&T to register the SIM card to the Sony IMEI. Once that happened, the forwarding command worked.

topic Call forwarding command not recognized in Z Series

Call forwarding command not recognized

Re: Call forwarding command not recognized - Solved