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I'm running minicom on Ubuntu 10.04 with a Huawei e220 and an AT&T SIM card. As directed by http://bit.ly/16ODGG, I was able to send an SMS to myself and several other phones across carriers.

device: /dev/ttyUSB0
bps: 115200 8N1
hardware: No
software: Yes

The next step I would like to do is to be able to dial out. However, when I attempt to do so, via

ATDTxxxxxxxxxx

I will get a NO CARRIER output. I've been Google-ing this error, and it seems the most consistent answer is for me to use pppconfig to dial out - but from my understanding, this will utilize the data connection on my phone, and make the phone call via the internet, and not voice, as per the minutes plan of my phone company.

Is there a way I can make the call over voice?

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migrated from stackoverflow.com Jan 10 '12 at 2:03

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1 Answer 1

up vote 3 down vote accepted

Resolved! In order to avoid this:

enter image description here

I emailed a professor that I know, and he has resolved the issue - sad to say, e220 does not support voice calls. As per http://bit.ly/wSDoGW, I was able to check for voice compatibility in minicom:

AT+FCLASS=?
+FCLASS: (0-1)

OK

For voice support, the list of numbers returned by FCLASS must include 8 - thus, this particular return indicates voice is (unfortunately) not supported by my modem.

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