Beta support: MMS on chatty/mmsd on Modem Manager - help/testing wanted!
On a Phosh pinephone 2.1, mobian/bookworm, t-mobile.
Testing out chatty 0.5.0~beta3-1 (downloaded from debian experimental).

First setup the main configuration under 'Mobile Network/Advanced/Access Point Names'. Select the Plus button to add a new apn. I rebooted afterward.

A new apn entry will be created and selected, leaving the default available, but not selected.
Code:
Name: T-Mobile US LTE
APN: fast.t-mobile.com

In addition, Chats has it's own settings under 'Protocol Settings/SMS and MMS Settings'.

I enabled 'Delivery Reports' and 'SMIL for MMS', although I'm not sure what they do.
There are three fields to enter information, mine only needed the first two:
Code:
mms: http://mms.msg.eng.t-mobiles.com/mms/wapenc
apn: fast.t-mobile.com


(On the settings page the labels of the entry fields do not show due to the limited room of the portrait view. Change to the landscape view and they can be seen. The first one is for the mms entry and the second one is for the apn.)

After restarting Chats some old messages got brought in. Then I was able to send/receive images. One problem occurred, when I received an image I got multiple copies of the image and I have one report that a friend got multiple copies from me. Other than that, it works well.

Thank you to all those that have worked on this.

Source OnePlus-6t :
Code:
https://www.t-mobile.com/support/devices/android/oneplus-6t/network-apn-and-volte-oneplus-6t#steps1

Update:

Currently I'm experiencing a couple of strange behaviors with the beta.

When I got a group text with three members, the text contained three copies of the message.

I sent an image to a recipient, which worked, except the image was doubled. After deleting that conversation, and creating a new conversation (to same recipient) I sent a text only message. The new message got the original image inserted after the text. That image continues to get inserted with each new text. I've deleted that conversation multiple times.

Update2:

I don't get a sent image when receiving group messages.

Modemmanager was the cause of the 're-appearing' image. I deleted the image files modemmanaager was storing and the image no longer gets inserted into new texts.
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Messages In This Thread
RE: Beta support: MMS on chatty/mmsd on Modem Manager - help/testing wanted! - by henrythemouse - 12-24-2021, 08:29 PM

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