The SMS API of TG 100 is great. It can send/receive SMS and send USSD.
But some mobile carrier enforce multi session USSD. I mean but that you can't send the full USSD command (ex : #158*1*2#) ; they will force you with menu screen to send #158*1 and then *2# to complete the USSD session.
Is there a way to handle this with any other Yeastar product than TG 100 ?