I believe this has to do with the default accounts that are selected in the Send & Receive section of Settings > Messages on your iPhone.
- Brad - On Dec 27, 2023, at 17:29, M. Taylor <markthew...@gmail.com> wrote: Hello All, I recently came across this issue on my beloved 14 and, upon searching the web, discovered hundreds and hundreds of others, encountering the same issue. In order to see this issue, in action, it is best to have access to both the phone that is sending the iMessage and the phone that is receiving the iMessage. It's best, but not necessary. This issue only occurs when sending iMessages, not standard SMS messages. Okay, here is the scenario: 1. You have two active SIM cards on an iPhone running the latest version of iOS. For simplicity's sake I will refer to them as a primary line and a secondary line; or as a primary number and a secondary number. 2. Make certain that both lines are registered in the iMessage app and that both are active in iMessage. This is to say, you can send and receive iMessages using either number / line. To insure that both numbers are truly registered with the iMessage servers, First disable and then enable iMessage in the Settings area. 3. >From within the iMessage Settings dialog box, select the primary SIM as the default line from which to start all new iMessages. 4. In a new iMessage, select a saved contact and send the iMessage from the secondary line. This is to say, as you compose your message, in the, from, field, select the secondary line and then send the iMessage. More likely than not, the recipient will receive the message from your primary number, instead of the secondary number, you manually selected. You can check this, for your self by doing the following: 1. >From within the Message app, open the thread to the message you just sent. 2. Near the top of the screen, in the center, single-finger, double-tap on the name of the contact listed at the top of the thread. This will open a dialog box. 3. Now swipe to the right until you hear VoiceOver say, "Conversation line." 4. Swipe, once more, to the right and VO will land on an unlabeled button. 5. Single-finger, double-tap on this unlabeled button. A 2-item list box will be displayed. 6. Swipe right, then swipe left, a couple of times and you will hear VO speak the name of each line and, upon the second swiping pair, you will hear VO announce with item is selected. This will be the line from which your iMessage was actually sent. It will, most likely show that the primary line is selected. You can, of course, at this point select the secondary line and close the dialog box to be returned to the active messaging thread. Just above the edit field, near the bottom of the display, you will find displayed text that indicates that the line has been switched, meaning that your next iMessage to this contact, from within this thread will now be sent from the secondary line. Go ahead and send another message and you will, most likely discover that, yet again, iMessage automatically switched you back to the primary line. Interesting, eh? Question, has anyone in the group encountered this, besides me? Mark -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/001f01da391c%247f257640%247d7062c0%24%40gmail.com. -- The following information is important for all members of the Mac Visionaries list. If you have any questions or concerns about the running of this list, or if you feel that a member's post is inappropriate, please contact the owners or moderators directly rather than posting on the list itself. Your Mac Visionaries list moderator is Mark Taylor. You can reach mark at: mk...@ucla.edu and your owner is Cara Quinn - you can reach Cara at caraqu...@caraquinn.com The archives for this list can be searched at: http://www.mail-archive.com/macvisionaries@googlegroups.com/ --- You received this message because you are subscribed to the Google Groups "MacVisionaries" group. To unsubscribe from this group and stop receiving emails from it, send an email to macvisionaries+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/macvisionaries/DD8149A5-0F91-454A-8011-5C41DEB98AEC%40swbell.net.