Modem can't dial out

[rocket2nfinity]

Finally took the plunge and moved phone service to my pinephone, time to get on the cutting edge of Open Source.... ouch.

Can send and receive SMS, can receive calls.  Can't call out.

Here is what showed in .xsession-errors

Code:

** (sm.puri.Calls:3442): WARNING **: 12:55:03.573: Error starting outgoing call ModemManager call to `13374636217': GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Failed: Couldn't start the call: Unhandled response '+QLWURC: "pdp active","failed","nxtgenphone"

+QLWURC: "deregister",0'
** Message: 12:55:03.606: Removing call `/org/freedesktop/ModemManager1/Call/0'
** Message: 12:55:03.607: Call `/org/freedesktop/ModemManager1/Call/0' removed

And logread:

Code:

Nov 20 12:55:03 pinephone daemon.info [2839]: <info>  [modem0/call0] user request to start call
Nov 20 12:55:03 pinephone daemon.info [2839]: <info>  [modem0/call0] call state changed: unknown -> dialing (outgoing-started)
Nov 20 12:55:03 pinephone daemon.warn [2839]: <warn>  [modem0/call0] couldn't start call: Couldn't start the call: Unhandled response '+QLWURC: "pdp active","failed","nxtgenphone"^M ^M +QLWURC: "deregister",0'
Nov 20 12:55:03 pinephone daemon.info [2839]: <info>  [modem0/call0] call state changed: dialing -> terminated (unknown)

Have the AT Command Reference for the modem, +QLWURC is not anywhere in it so digging there is going to be fun.  I'm on a paygo plan and it is charging me for two minutes of use on every attempt.  Occasionally I hear a fraction of a second of what sounds like the greeting for the called number.  So it isn't just failing instantly, something happens first.

Random bits that might matter.   The phone has no data plan so data is disabled in the control panel.  The APN settings have been set to what defaulted after the SIM went active and then to what www.bestmvno.com recommended for H2O Wireless... or would if the UI allowed input of most of the recommended settings.  Even though the subscribed plan has "LTE" in the name, the phone insists on connecting to 3G, forcing 4G Only gets no service.  There IS 4G service from AT&T in the area.

Let's start with the simple stuff - how many bars do you have? Is your signal strong? Next, did you set data on and 4g in the network settings? You indicated you did. But it's always good to check. You did not specify OS, some of the OS require you to set that manually. Next, please load Mobian onto an SD card and try again with it. Mobian is the most complete OS so far. Let us know whether it works on Mobian.

I have to say, several people have reported having trouble wirh AT&T based services these days. One even said they refused to let him on the network claiming it was not an at&t approved device. So, if you have another service to compare with, that would be good.