- Messages now show the right sender and channel, and private messages are marked as private. - Channel and private message history now load. - Your selected channel stays selected when the channel list updates. - Call alerts from your dispatcher now show who is calling. - Man-down alerts from other radios are now shown. - If you lose connection during an alarm, it is sent again when you reconnect, so the control room keeps seeing it. - If your account is taken out of service, the app stops trying to reconnect and tells you why. - Secure, encrypted connections to on-site Dialog servers. - General reliability fixes.

Direct messaging • Send a private one-to-one message to any contact, in its own conversation thread • Delivery and read indicators on messages you send • Message history is restored when you reopen a conversation • Delete individual messages Safety • Man Down and Lone Worker alerts, with alarm confirmation and cancel • Emergency alerts raised remotely by your control room Calling and channels • "Call Me" request — ask a colleague to call you back • Live call duration and clearer on-screen call status • Redesigned channel view with operational status at a glance Audio • Improved voice quality with adaptive bitrate on poor connections • Hands-free voice activation (VOX) • Smoother handling when switching between speaker, headset and Bluetooth mid-call Also in this release • Various stability and performance improvements

Automatic server selection Dialog PTT now connects you to the nearest Dialog server automatically, which means faster call setup and lower delay — particularly if you travel between regions or work outside the UK. • The app measures which server responds fastest and uses it • New "Server node" option in Settings if you need to choose a region yourself • Quicker recovery if a server becomes unavailable Your configured server address is unchanged and still works exactly as before.

**What's New in 1.9.21** • Private 1:1 calls now work end-to-end, including full-duplex hands-free mode. • Direct 1:1 messaging alongside group messages, with delivery and read receipts. • "Call Me" — request a callback from your dispatcher with a single tap. • Clearer audio with echo cancellation, noise suppression, and adaptive quality that adjusts to your connection. • Hands-free VOX (voice-activated transmit). • Stronger end-to-end encryption on secure channels. • Faster, more reliable reconnection and credential auto-login. • Many stability and performance improvements.

**What's New in 1.9.19** • **PTT queue badge** — when another user holds the floor, a position indicator now appears on the PTT button so you know exactly where you are in the queue • **Message history** — your group message history loads automatically when you connect, so you never miss a conversation • **Swipe to delete messages** — swipe left on any message to remove it • **Contact status updates** — operational status changes (Available, En Route, On Scene, etc.) from other devices now appear instantly without waiting for the next refresh • **Lone Worker support** — lone worker timer and alarm handling fully wired on iOS, matching the Android app • **Remote management** — channel switching, stun/unstun, and config queries from the dispatcher now work correctly on iOS • **Stability fixes** — corrected an issue where contact battery levels and signal indicators weren't updating reliably; fixed group status opcodes that were silently miscommunicating with the server

AES encryption enabled

New Private calls from Contacts — tap any online radio user to start a direct private call instantly. A call icon now appears next to callable contacts so they're easy to spot. Phone call awareness — if a regular phone call interrupts the app, PTT is automatically released so you don't hold the channel during a call. Message read receipts — the server and dispatcher are now notified when you read a message. 3-colour VU meter — the audio level bar now grades green → yellow → red so you can see at a glance if your mic is peaking. Also in recent updates Pre-SOS warning beeps before declaring an emergency (3 ascending tones, can be disabled in Settings) Active SOS siren while emergency is declared (can be muted in Settings) Bluetooth headset support — BT audio routes automatically when a headset connects or disconnects QUIC transport for lower-latency audio

Fixed iOS microphone audio — PTT transmission now works correctly. Improved VU meter display and UI stability.