Ensure that the read/unread status of text messages is shared globally

Description:

Currently, in inboxes tied to shared numbers or call queues, a message’s read or unread status is tracked individually per user — meaning when one person reads or responds to a message, it still appears as unread for everyone else. This causes confusion and duplication of work, as multiple users may open or reply to the same message unnecessarily.

Requested Enhancement:

Implement a global read or unread state for shared inboxes so that when one user opens or replies to a message, it is marked as read for all users with access to that number or queue.

Benefit:

This feature would make team communication more efficient, prevent duplicate responses, and provide clear visibility into which messages have already been handled — improving collaboration and response time across shared lines.