Cannot send SMS with Telit xe910 modem in PDU mode using v7.0.0

[turmalin]

Hi,
I could send SMS with Telit xe910 Terminal using ATLib v7.0.0-RC2 via "Text mode", but in latest release v7.0.0 there is no "Text mode" anymore. I tried to send SMS using PDU mode but either process fails with CMS 301 / CMS 304 errors or it pretends as if SMS is sent, giving a CMGS response with no error, but does not send any SMS.

I tried both GSM7 and UCS2 character set but neither first nor second set works. I would be glad if "Text mode" functionalty exists in new releases.
Kind Regards

[hbjorgo]

Hmmmm, that's not good. I removed "Text Mode" to simplify the code. I'll consider re-adding it if it's needed.
What modem do you use in code? Have you tried "Cinterion - MC55i"?
What format do you use for the receiver phone number?

[turmalin]

I have Telit xe910 GSM Terminal and I tried "Cinterion - MC55i" as you suggested, other modems does not seems to work for my configuration. I can dial and hang-up any mobile phone but cannot sens SMS.

I tried both "country code + gsm no" and "0 + gsm no" but both fails as I mentioned before.

[hbjorgo]

I've released a new version - 7.1.0-beta2

It contains a new modem: Telit ME910C1

Try it out and make sure you call

• SetRequiredSettingsBeforePinAsync as the first function towards the modem.
  and
• SetRequiredSettingsAfterPinAsync as the first function towards the modem after entering the PIN.

Please let me know if it fixes your issue.

[turmalin]

Hi,
I tested 7.1.0-beta2 using FunctionalityTest application and I got CMS Error 304 when I tried to send SMS. You can find RX/TX data as attachment below.

Kind Regards