I tried to change the sms example to use the Hologram SIM. It seems Nordic does not support plain text, but I found a wesbite that encode a PDU from a message, i.e. “Hello World” and the Hologram (free) number - SMS Long Code: 310000202

I tried this:
"AT+CGDCONT=1,\“IP\”,\“hologram\”"
“AT+CNMI=3,2,0,1”,
“AT+CMGS=28\r001100098113000002F200000B11C8340B94A6CF4166F9BB0D12A6D96C”,

But nothing showed up.

Using the at_client sample I can send an sms without data, i.e AT+CMGS=28 -then hitting return sends an empty message. ctrl-Z does not seem to work to send the body.

Any idea what resources I should check out to learn everything?

@bweiler you may want to check the Hologram interface. I think you have to turn on text messaging.

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