diff --git a/services/asterisk.sh b/services/asterisk.sh
index 4ff649f..0cfa883 100644
--- a/services/asterisk.sh
+++ b/services/asterisk.sh
@@ -1692,7 +1692,26 @@ install_asterisk() {
                 return 0
                 ;;
             fresh)
-                log_info "Proceeding with a full fresh reinstall — every prompt below runs from scratch."
+                echo ""
+                log_warning "Full reinstall stops the existing containers and re-runs every"
+                log_warning "prompt below from scratch (domain, networking, firewall, Caddy/"
+                log_warning "Authelia). The TURN credential registered with the shared coturn"
+                log_warning "service is reused as-is — no need to touch coturn for this."
+                local _WIPE_PBX_DATA=""
+                prompt_yn "  Also delete stored PBX data (extensions, voicemail, recordings, spool)? (y/n):" "n" _WIPE_PBX_DATA
+
+                log_info "Stopping the existing containers..."
+                (cd "$EA_DIR" && docker compose down 2>/dev/null)
+
+                if [[ "$_WIPE_PBX_DATA" =~ ^[Yy]$ ]]; then
+                    rm -rf "$EA_DIR/config/asterisk" "$EA_DIR/spool" "$EA_DIR/logs" "$EA_DIR/lib"
+                    log_warning "Deleted config/asterisk, spool, logs, and lib — extensions,"
+                    log_warning "voicemail, and call recordings are gone."
+                    if declare -F install_pstn-trunk >/dev/null 2>&1 || [ -f "$EA_DIR/pstn-trunk-usage-alert.sh" ]; then
+                        log_warning "PSTN trunk patches config/asterisk's dialplan — re-run"
+                        log_warning "'sudo ./setup.sh pstn-trunk' afterward to restore it."
+                    fi
+                fi
                 ;;
         esac
     fi
diff --git a/services/coturn.sh b/services/coturn.sh
index a0ce841..08dbb94 100644
--- a/services/coturn.sh
+++ b/services/coturn.sh
@@ -186,6 +186,27 @@ install_coturn() {
                 log_warning "change the host/port/realm below, every already-registered consumer"
                 log_warning "(Asterisk, Mattermost, ...) keeps pointing at the OLD values in its own"
                 log_warning ".env until you re-run that service's installer too."
+
+                local _consumers=""
+                [ -d "$DIR/users" ] && _consumers="$(find "$DIR/users" -maxdepth 1 -name '*.env' -printf '%f\n' 2>/dev/null | sed 's/\.env$//' | tr '\n' ' ')"
+                if [ -n "$_consumers" ]; then
+                    echo ""
+                    log_info "Registered consumers: $_consumers"
+                    local _WIPE_USERS=""
+                    prompt_yn "  Also delete all TURN user credentials and the user database (forces every consumer above to re-register)? (y/n):" "n" _WIPE_USERS
+                    if [[ "$_WIPE_USERS" =~ ^[Yy]$ ]]; then
+                        rm -rf "$DIR/users" "$DIR/db"
+                        mkdir -p "$DIR/db" "$DIR/users"
+                        # The running container (if any) still holds the old,
+                        # now-deleted turndb file open — new turnadmin writes
+                        # to the fresh file at that path go unseen until the
+                        # server process restarts and reopens it.
+                        docker restart coturn >/dev/null 2>&1
+                        log_warning "Deleted TURN credentials and the user database."
+                        log_warning "Re-run each consumer's installer in Update mode afterward —"
+                        log_warning "ensure_coturn_user() auto-recovers a fresh credential for it."
+                    fi
+                fi
                 ;;
         esac
     fi
diff --git a/services/mattermost.sh b/services/mattermost.sh
index 67363fd..7ccb3a6 100644
--- a/services/mattermost.sh
+++ b/services/mattermost.sh
@@ -314,6 +314,20 @@ install_mattermost() {
                     log_warning "the shared coturn service — the Calls plugin's TURN config in System"
                     log_warning "Console will need updating to the new credentials afterward (see below)."
                 fi
+                echo ""
+                log_warning "Full reinstall stops the existing containers and re-runs every prompt"
+                log_warning "below from scratch. The TURN credential registered with the shared"
+                log_warning "coturn service is reused as-is — no need to touch coturn for this."
+                local _WIPE_MM_DATA=""
+                prompt_yn "  Also delete stored data (Postgres database, uploaded files, config, plugins)? (y/n):" "n" _WIPE_MM_DATA
+
+                log_info "Stopping the existing containers..."
+                (cd "$DIR" && docker compose down 2>/dev/null)
+
+                if [[ "$_WIPE_MM_DATA" =~ ^[Yy]$ ]]; then
+                    rm -rf "$DIR/db" "$DIR/data" "$DIR/logs" "$DIR/config" "$DIR/plugins"
+                    log_warning "Deleted the Postgres database, uploaded files, config, and plugins."
+                fi
                 ;;
         esac
     fi