troubleshooting Chatty / modem? no SMS outbound
#6
UPDATE:

I got SMS outbound working.  I had indeed fat fingered an recommended re-config, but for the benefit of anyone on a troublesome carrier, here's what it is:

Copy the Quectel modem daemon config to prevent updates from overriding:

Code:
sudo cp /usr/share/eg25-manager/pine64,pinephone-1.2.toml /etc/eg25-manager/

NOTE: there's several of these TOML files under /usr/share so copy the specific version of phone you have. I have a PPv1.2.

Reconfigure the modem to _disable_ IMS over 4G:

Code:
{ cmd = "QCFG", subcmd = "ims", value = "2" },

WARN: that ^ was where I'd fat fingered an earlier test.  The default config is '..., expect = "1"' and I had accidentally fat fingered to '..., expect = "2"'.  Notice 'expect' versus 'value'.

NOTE: this eg25-manager (Quectel modem "manager") has _nothing_ to do with ModemManager.  I had tried some reconfigs in ModemManager's configs (via NetworkManager) based on other suggestions but they had no affect on SMS issues. Also, there's no Chatty config that should affect plain txt SMS; just MMS, so I should probably change the subject? Testing via 'mmcli [...] -s [N] --send' makes that more clear.

Reboot and SMS outbound now works on USMobile.

Evidently this IMS setting has caused forum member's SMS frustration in the past: https://forum.pine64.org/showthread.php?...#pid101233
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Messages In This Thread
RE: troubleshooting Chatty / modem? no SMS outbound - by vap0rtranz - 02-14-2022, 12:15 PM

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