I am trying to send a USSD message via the MC7455, but it is not getting a response.
I am able to send fine with same SIM card on a different modem (huawei) and see the responses back from the carrier so it seems to be an issue on MC7455.
Here is what I send:
at+cscs? +CSCS: "IRA" OK at+cusd? +CUSD: 1 OK at+cusd=1,"#225#",15 OK
But I never get a response +CUSD
Can someone else try sending a USSD on their EM/MC 7455 and see if it works for them?
Firmware in use: 02.24.03.00
Seems similar to this: https://forum.sierrawireless.com/t/no-ussd-responses/8182/6 However it was solved with a firmware update, and since I am running latest, not sure it applies to 7455.