Different SMS format S3 <-> Ter GX 300S

  • Q: Type of module? A:TER GX300 S / FW: 10.00.063
    Q: Firmware version? A:
    Q: Type of starter kit you have? S3 / FW: 07.03.301
    (S1, S1B, S2, S3, S4, EVK1, EVK2, none, other)

    Surprise, surprise!
    I developed a sw for receiving and parsing SM. I'm using the S3 kit, because the RS232 port is occupied by other hardware and I need the X400 debugging port.
    The final testing happens on my TER GX300 S board (containing a GC864 quad?). Of course, I'm using the same sw and found that the imcoming SM format has changed:
    The same SM shows:

    S3 kit: Incoming message:
    +CMGL: 1,"REC UNREAD","+49xxxxxxxxxxx"\r\n<message body>

    TER GX300 S: Incoming message:
    +CMGL: 19,"REC UNREAD","+49xxxxxxxxxxx","","12/02/21,17:31:34+04"
    \r\n<message body>

    Is it a firmware problem?
    Can I switch the format by an AT command?
    Is it an effect of the provider's "service center" (at+csca=<address>,145)?
    Is it an effect of my SIMcards (in both devices I use "white" cards)?

    Another effect: Please notice that the number of message is different. After receiving a message I always delete the whole message list. So the incoming message always should have the number "1".

    I searched for SMS format info and found that everyone knows the second format (TER GX300 S) and I saw it yesterday for the first time after hundreds of test SM.

    Please give me a hint. Thanks in advance!