Yes, but some modems (e.g. ZTE MF-180) can't handle any USSD request string after encoded one was used. So timeout error is returned by Modem Manager because modem is unable to handle fallback unencoded request string sent after encoded one.
Yes, but some modems (e.g. ZTE MF-180) can't handle any USSD request string after encoded one was used. So timeout error is returned by Modem Manager because modem is unable to handle fallback unencoded request string sent after encoded one.