This change log lists new features, edits, fixes etc. made to major Windows Softphone releases. Some updates, additions and fixes may not be listed. 3CX is constantly improving the softphone and may implement fixes prior to any official release.

3CX Windows Softphone V5.1 Beta (Build 810), April 2025

• New: Allow elevated user to change forwarding rules for extensions
• New: Chat notification with quick reply handling
• New: Scan QR Code functionality for mobile devices
• New: Allow elevated user to change extension status
• New: Focus setting on incoming call
• New: Add option to sort by extension number
• New: Add option to stop media playing on incoming calls
• New: Add ringer volume setting
• Fixed: Copy number functionality for incoming/active calls
• Fixed: Sort team list by extension number
• Fixed: UI changes for quick action button
• Fixed: BLF UI changes
• Fixed: Add context menu to keypad for deskphone control
• Fixed: Show state of extension under text box in keypad
• Fixed: 2 deskphones of the same model will select only one phone
• Fixed: Changed positioning of toolbar buttons
• Fixed: Change BTrip and Lunch colours for SP6
• Fixed: Add Edit before call in context menu for Recents, Voicemails, Contacts and Recordings
• Fixed: UI Styling changes for Context menu
• Fixed: Editing no answer timeout is not triggered in the ui
• Fixed: Include icons for context menu in chats
• Fixed: Launch CRM browser and auto answer does not open the CRM link
• Fixed: App does not reconnect if opened before network is available
• Fixed: Blind transfer button not enabled in specific scenario
• Fixed: Softphone reconnects after making external call
• Fixed: Added Open Contact card for Team extension via context menu
• Fixed: Expose status in suggestion box for keypad (42880)
• Fixed: Voicemail option not available in Call forwarding to Ring Group
• Fixed: Remove Ring my mobile in call forwarding when mobile not set
• Fixed: Launch application on incoming call does not work when Auto-Answer is enabled
• Fixed: Pickup and Divert options not available through Team > Operations menu
• Fixed: Context menu empty in certain scenario in the panel
• Fixed: Unregistering account keeps left profile status of the user
• Fixed: Text for set status dialog not updated correctly
• Fixed: 3CXSoftphone not default selection
• Fixed: Different translation for some languages when message is sent
• Fixed: Team filters showing blank when extension is removed from the department and app relaunched
• Fixed: Delay in opening contact card when Team extensions are many
• Fixed: Issue with empty context menus
• Fixed: Exiting the app whilst Yealink selected not fully terminate
• Fixed: Updating of customer status profile name
• Fixed: New update to the Yealink SDK
• Fixed: Issues with Call from chats for bridged extensions
• Fixed: My Voicemil FW rule defaulting to send busy
• Fixed: App not responding due to a lot of voicemails on startup
• Fixed: Error fetching QR code in certain scenarios

3CX Windows Softphone V20, 20.0.753.0 Beta, April 2025

• Fixed: Crash on launch of the app
• Fixed: Crash related to new audio driver
• Fixed: App does not reconnect if launched when no internet access

3CX Windows Softphone V20, 20.0.751.0, March 2025

• New: Ability to add participants to a scheduled conference before starting
• New: Google Contacts Integration
• New: Monitor Connection Quality implementation
• New: Allow editing of numbers in Recents
• Fixed: Update to audio drivers
• Fixed: CallerDisplayName param not populated if the value is the same as CallNumber param
• Fixed: App stuck in semi-live state
• Fixed: Remove Add contact label for echo and PlayFile
• Fixed: Remove ability to add a 3-digit company phonebook number
• Fixed: Callee name not shown in panel when calling through a bridge
• Fixed: Random orders of voicemails
• Fixed: Sort panel agent list by extension
• Fixed: Other users can see barged in extension in teams menu
• Fixed: Personal M365 contacts not shown in softphone
• Fixed: Focus not given for redial
• Fixed: Conflicts of 3CX Beta with the production app
• Fixed: Cannot make second attended transfer if the first was cancelled
• Fixed: Windows softphone crashes network is lost
• Fixed: Crash when logging in/out an agent
• Fixed: Not all recordings were being loaded
• Fixed: Crash when scrolling in Contacts page
• Fixed: Missed calls and chat bubbles not shown in taskbar
• Fixed: Issues with transfer in certain scenarios
• Fixed: Issues with contact searching

3CX Windows Softphone V20, 20.0.664.0, November 2024

• New: Support for Abandoned calls
• New: Call info and operations in Teams page
• New: Call forwarding Support
• New: Add contact label + ability to add to CRM and M365
• New: Add Open contact url for crm calls on connected calls
• New: Copy number from clipboard hotkey
• Fixed: Show Queue name in the notification
• Fixed: Added Microphone Gain Setting
• Fixed: Photo cropping in Edit contact does not respect the theme chosen
• Fixed: Panel resize issue
• Fixed: Panel does not allow you to manipulate with the options
• Fixed: Open contact in group/queue chats
• Fixed: Crash when enabling/disabling checkbox settings
• Fixed: Open contact card for sms starting with + does not show default avatar
• Fixed: Add status and custom message to avatar
• Fixed: When typing a digit and then pasting a number, the call is initiated and trimmed  
• Fixed: Change in avatar image for single dummy
• Fixed: CRM hyperlink is not shown in dialer or full screen incoming call
• Fixed: Reconnect myphone after restoring backup
• Fixed: Team members are visible after deactivating account
• Fixed: Monitor connection quality of your own calls is not available if Operations right is not enabled
• Fixed: No myphone connection after restoring backup with app opened
• Fixed: Switching accounts crashes the app
• Fixed: Keypad contact resolution shows textual based status
• Fixed: Show call scripts and Shared Parkings in Call forwarding rules for SP3
• Fixed: Expose the queue of abandoned calls next to date/time
• Fixed: Leave voicemail operation missing in call history
• Fixed: Updating for queue calls in panel not working
• Fixed: Copy was removed from context menu in chat messages
• Fixed: Abandoned queue calls on prioritized hunt
• Fixed: Crash when resetting queue statistics to zero
• Fixed: Panel agents are not wiped away on deactivate account
• Fixed: Right click on empty space in panel exposes context menu
• Fixed: Do not expose Chat in context menu for PlayFile
• Fixed: Allow chat is disabled but shows the chat in context menu across the app
• Fixed: Prepend/Append caller is not shown in notification together with the queue name
• Fixed: Delete recordings is not applied immediately on the UI
• Fixed: Searching for parking extensions issue in call forwarding
• Fixed: Chat in context menu is missing for recordings
• Fixed: Select contact and pressing SMS will show background opposite of the select default
• Fixed: Call operations loading stuck
• Fixed: Synchronize CRM contacts links not working
• Fixed: Barge in/whisper/listen not showing a notification
• Fixed: InvalidOperationException in call queue
• Fixed: Transfer/Divert dialog removal
• Fixed: Duplicate session is created when connecting to softphone
• Fixed: Crash when PC goes to sleep
• Fixed: Crashes in queues
• Fixed: No device selected in Deskphone control
• Fixed: Multiple crashes when IP blacklisted
• Fixed: Remove comma requirement when searching
• Fixed: Add contact label not available in certain conditions
• Fixed: Issue with end call due to audio drivers due to recent updates for Windows 11 24H2

3CX Windows Softphone V20, 20.0.580.0, September 2024

• New: Transferring of chats
• New: Forwarding of chat messages
• New: Compression of chats
• New: Vertical navigation bar changes
• New: Show presence in Recents, Voicemails and Recordings
• New: Copy to clipboard functionality in voicemail and recordings transcription
• Fixed: App is crashing when you try to delete a recordings without permissions
• Fixed: Delete option for recordings is not exposed dynamically
• Fixed: Issues with Tapi when transferring calls
• Fixed: Ability to remove myself from a group chat
• Fixed: Switch button color accents for deletion dialogs
• Fixed: Error missing when downloading a recordings not found/not accessible in server
• Fixed: Do not show the added participants in the add participant list
• Fixed: On Att Transfer external app only launches for internal extension
• Fixed: Deskphone control shows a task was canceled
• Fixed: Message being marked as read when app is in background
• Fixed: Minimizing to system tray and clicking on the icon in taskbar does not launch the app
• Fixed: Error handling of voicemails/recordings that have been archived and deleted
• Fixed: Remove the CRM filter when CRM is hidden from contacts
• Fixed: Softphone crashes when trying to call an extension from Panel
• Fixed: The chat status do not change according to the action performed
• Fixed: Dealt with status for archiving of chats is not updating dynamically
• Fixed: Dummy contact for external chats
• Fixed: Empty recordings page when recording has myself only as a participant
• Fixed: Handle empty avatar in lists
• Fixed: Move all downloadable attachments in Downloads
• Fixed: Open a chat from the panel is not putting the softphone in focus
• Fixed: Truncate custom status messages when long
• Fixed: Make search bars and filters more compact
• Fixed: Long transcription will take full screen and x button has incorrect behavior
• Fixed: Unified search and filter bar options in navigations to reduce flickering
• Fixed: Crash on startup due to hotkey handlers
• Fixed: Add ability to download voicemails
• Fixed: When softphone reconnects in certain scenarios, the blfs are empty
• Fixed: Number not sanitized for non-csta device

3CX Windows Softphone V20, 20.0.546.0, August 2024

• New: Chats
• New: Call recordings list
• Fixed: Keep a default color scheme for chats
• Fixed: Custom profile name not shown in Teams and Keypad
• Fixed: Launch application on incoming calls is launched on external calls when connected option is selected
• Fixed: %CallerDisplayName% parameter not populated if caller is not in contacts
• Fixed: Remove interception of keyboard media keys
• Fixed: All section shows extensions as logged in to queue when they are logged out
• Fixed: Call history not loading old items
• Fixed: Recording from external numbers shows the id
• Fixed: Issues with recordings from Conference
• Fixed: Recordings from a contact does not show number
• Fixed: Recordings from an extensions mobile number shows the extension number instead
• Fixed: Filtering inconsistencies between other apps
• Fixed: Hold button blinking when Jabra integration is enabled
• Fixed: App is crashing when you try to delete a recordings without permissions
• Fixed: Missing error when attempting to play from phone with recordings deleted from pbx
• Fixed: Play from phone not working via context menu
• Fixed: Search criteria issues in searching contacts
• Fixed: Searching from contacts does not return 20 pbx contacts

3CX Windows Softphone V20, 20.0.511.0 Beta, July 2024

• New: Yealink Headset Integration
• Fixed: Updating app requires admin privileges
• Fixed: PNP provisioning issues
• Fixed: Provisioning issues with Windows Server 2019
• Fixed: Crash on startup due to hotkey handlers
• Fixed: Get rid of quote escaping
• Fixed: Deleting entry from recents messes up the recents list
• Fixed: Tapping on new call and BLF will not perform a new call

3CX Windows Softphone V20, 20.0.491.0, June 2024

• Fixed: Crash when changing Parking Orbit dial codes
• Fixed: Issue when using deskphone control via Tapi
• Fixed: Transcription icon not visible in voicemail
• Fixed: Crash when renaming Digital Receptionist

3CX Windows Softphone V20, 20.0.476.0 Beta, May 2024

• New: Calls via phone support
• New: MSIX Deployment
• Fixed: Translation issue not escaping
• Fixed: CRM links not visible in ringing and connected call
• Fixed: Add Ready for calls label
• Fixed: Crash when disconnected ethernet and navigating to a different page
• Fixed: Crash when dropping ethernet connection
• Fixed: Height issues for dock/dockless procedures
• Fixed: Softphone crash in recents
• Fixed: Transfer via BLF doesn’t work when CSTA mode is selected
• Fixed: Conference & Att. Transfer active when Non-CSTA device is selected
• Fixed: Divert via BLF
• Fixed: About pop up not showing

3CX Windows Softphone V20, 20.0.460.0, April 2024

• Fixed: Panel inconsistency in naming
• Fixed: Ringing state is shown in BLF panel
• Fixed: Pickup via BLF
• Fixed: Agent list randomly does not load correctly in UI
• Fixed: List of agents are being appended when switching between All and Queue calls

3CX Windows Softphone V20, 20.0.453.0 Beta, April 2024

• Fixed: Missing initials for non synchronized CRM contacts
• Fixed: App comes back to foreground when minimized/send to voicemail for incoming call
• Fixed: Settings redesign
• Fixed: Dead link is TR translation files
• Fixed: Disable echo cancellation by default and provide a setting
• Fixed: Show third party licenses
• Fixed: Dialing letters or billing codes should not be stripped
• Fixed: Empty error when audio devices not available
• Fixed: Add tooltip to both states of Keep on top
• Fixed: Blind transfer call for connected call via BLF
• Fixed: Minimize and Close buttons are not visible
• Fixed: Order of calls in switchboard to be consistent with other apps
• Fixed: Queue calls view does not take into consideration logged out from specific queues
• Fixed: Inconsistency in agent list for specific queues
• Fixed: Queue calls shows agents from different departments
• Fixed: Caller is empty in some situations
• Fixed: Crash when dragging from Panel to Softphone
• Fixed: Callee information is inconsistent with Web Client panel when personal and company contacts share the same number
• Fixed: Unregistered extensions are shown in the switchboard. Inconsistent with Web Client
• Fixed: Personal or Company credentials not shown in contact card
• Fixed: Queue explicit login/logout buttons seem clickable
• Fixed: Refresh of list when registering/unregistering an agent in queue calls
• Fixed: Crash when copying to clipboard multiple taps

3CX Windows Softphone V20, 20.0.434.0, March 2024

• Fixed: Allow users to park an incoming call
• New: Hotkeys
• Fixed: Changes in UI for navigation and manage account
• Fixed: Issue with parking and unparking calls multiple times in V18 PBXs
• Fixed: Show custom avatars for incoming call windows notifications
• New: Close to system tray support
• Fixed: Launch external application on incoming call resolve checking for legacy contact

3CX Windows Softphone V20 Hotfix, 20.0.418.0, February 2024

• Fixed: BLF Shared parking not working in certain conditions (38880)
• Fixed: Not resolving unsynchronized CRM contact after answer (38873)
• Fixed: Switching External app settings changes BLF view (38861)
• Fixed: Handled ES language (38862)

3CX Windows Softphone V20 Beta 8 RC2, 20.0.407.0, February 2024

• New: Launch an external application for ringing/connected state
• New: Add default communication options for Microphone and Speaker
• Fixed: Teams initials are not synced with all clients
• Fixed: Do not show Special Menu twice on make call
• Fixed: Updated to .NET 8
• Fixed: Shows sip trunk names instead of contact names
• Fixed: Remove Leave voicemails for bridged extensions
• Fixed: Searching First name + partially last name not giving results
• Fixed: Missed translation in contact card
• Fixed: Does not search by full name in Voicemail
• Fixed: Validation message is missed
• Fixed: Missing forgot password link in master
• Fixed: Avatar is gone when adding/editing a contact
• Fixed: Voicemail item for CRM removed after listening
• Fixed: Chinese translation not taking effect
• Fixed: Company contact name is not shown when call is connected
• Fixed: Crash when a call is disconnected
• Fixed: Translation issue for Ringer ON/OFF
• Fixed: Incoming call to RG and Queue not indicating facilities
• Fixed: Jabra crash when receiving 2 incoming calls

3CX Windows Softphone V20 Beta 7 RC, 20.0.384.0, February 2024

• New: Setting for Replace + with numerics
• New: Ringer on/off
• New: Audio routing for Ringer
• New: Manual provision of app
• New: Show Title and Department in Phonebook contacts
• Fixed: Registration issues with utf16 string
• New: Auto answer
• Fixed: Answer a call with Enter hotkey
• Fixed: The name does not change immediately
• Fixed: Add log level setting in hidden settings
• Fixed: Text changes to Manual login page
• Fixed: Missed validation for secure connection in manual login
• Fixed: Crash on open and immediately close of the app
• Fixed: Incorrect mobile number when creating a new contact
• Fixed: Jabra integration issue with certain models

3CX Windows Softphone V20 Beta 6, 20.0.346.0, January 2024

• New: Jabra headset integration
• New: Add delete and delete all for call history
• Fixed: PNG avatar superimposes initials
• Fixed: Tel protocol strip html spaces
• Fixed: Make transcript icon clickable
• Fixed: Add link to download TAPI driver
• Fixed: Not taking into consideration the Codec priority from server
• Fixed: Receiving malformed packs on PNP listener disallows provisioning of app
• Fixed: Review the add contact screen validations
• Fixed: Add CRM hyperlink in contact card
• Fixed: Wrong avatars for external numbers when receiving a call in voicemail
• Fixed: Dialogs should respect the windows theme selected
• Fixed: Incoming calls from an extension coming from mobile number is not resolved
• Fixed: Stripping of long translations
• Fixed: New custom image for contact not showing after change
• Fixed: Changing the contact order changes the order in call history
• Fixed: Changes to settings page

3CX Windows Softphone V20 Beta 5, 20.0.341.0, January 2024

• New: Incoming call contact matching for unsynchronized CRM Contacts
• New: Search for unsynchronized CRM contacts
• Fixed: Show unregistered extensions in settings and teams
• Fixed: BLF speed dial usage on blind or attended transfer
• Fixed: Don’t do contact look up in DTMF
• Fixed: Show temporary status in Teams and Dialer
• Fixed: Send BYE to ongoing calls on app termination
• Fixed: Show Queue/RG routing details for incoming calls of all types
• Fixed: Crash when barge-in/whisper/listen
• Fixed: Create conference via BLF
• Fixed: Remove favorites option from Bridged extensions
• Fixed: Search for unsynchronized crm contacts shows multiple results
• Fixed: Context menu options in contacts
• Fixed: Call goes to local extension instead of bridged extension
• Fixed: CRM contact resolve for voicemails

3CX Windows Softphone V20 Beta 4, 20.0.323.0, December 2024

• Fixed: Sanitization of numbers with dashes/spaces/parenthesis
• New: Add copy number context menu for voicemail
• New: Add voicemail transcription
• New: Add call in context menu throughout the app
• Fixed: Remove from favorites option disappears in particular scenarios
• Fixed: Enabled email button in contact card when email is not specified
• New: Copy functionality throughout the app
• Fixed: Don’t call immediately after using tel protocol
• Fixed: External numbers are duplicated in Recents
• New: Context menu in call history
• Fixed: Name field should be empty when adding contact from recents/voicemails
• Fixed: Email does not provide the To data to email client
• Fixed: Voicemail listing not updating when adding a contact

3CX Windows Softphone V20 Beta 3, 20.0.275.0, December 2024

• Fixed: Conference button re-enables after losing limit
• Fixed: Cannot open contact card to make a call
• New: Avatar and details in incoming call notification
• New: Context menu added to Teams
• New: Make teams searchable by email
• New: Add support for Adding/Editing of contacts
• New: Added filtering in Contacts and Teams
• Fixed: BLF Changes
• Fixed: Search by mobile in teams not showing results
• Fixed: Call history inbound call barely visible in both themes
• Fixed: Add edit contact button in contact
• Fixed: Visual changes in delete confirmation dialogs
• Fixed: When first and last is not populated in personal contact, we do not show the company name
• Fixed: Contacts sorting should respect first/last ordering
• Fixed: Make whole row hoverable to show full name in tooltip
• Fixed: Translations in Tapi Setting
• Fixed: Contact avatar is not being deleted
• Fixed: Editing from Contact card changes not visible
• Fixed: Firstname/LastName ordering throughout the app
• Fixed: Should not allow editing of CRM and M365 contacts
• Fixed: Dropdown matching does not show system extensions
• Fixed: Search by Full Name
• Fixed: Sanitization of numbers from Contact Card

3CX Windows Softphone V20 Beta 2, 20.0.271.0, November 2024

• Fixed: Present full screen notification for incoming call
• Fixed: Parsing of incoming call name [FNLN / DID / for personal and company]
• Fixed: Park call via BLF panel
• Fixed: Correct parsing of company contacts
• Fixed: Resetting password from webclient keeps sip connection but dialer is not acting on the softphone
• Fixed: Searching by email or company for a 3CX Company/Personal phonebook contact not providing results

3CX Windows Softphone V20, 20.0.261.0, November 2024

• New: Tapi Support
• Fixed: Contact card actionable buttons fixed for fullscreen
• Fixed: SIP trunks exposed as extensions in new call/conference/transfer

3CX Windows Softphone V20, 20.0.0.258, November 2023

• Fixed: Error in dialer for specific scenario
• Fixed: Update OpenSSL to 1.1.1w
• Fixed: Updating of Windows softphone from current production crashes the app
• Fixed: Avatar for voicemail coming from CBTest showing Fax initials
• Fixed: Send to voicemail not working for v20 PBX
• Fixed: Show recordings in web client
• Fixed: Support for JWT
• Fixed: Removed provision url exposed in logs
• Fixed: Rename status in BLF not working
• Fixed: Incoming call notification shown in panel
• Fixed: Add PNP mode on startup or deactivated extension
• Fixed: Bring to front issues with BLF panel enabled
• BLF Support
• Fixed: Empty BLF on second page creation
• Fixed: Remove Windows ringtone and introduce multiple call handling tone
• Fixed: Registration issue showing multiple entries
• Fixed: Add backspace in transer/Conference/New Call
• Fixed: BLF issue with extensions of different departments
• Fixed: BLF panel remains visible after deactivating account
• Fixed: Status of extension is not reflected in BLF panel
• Fixed: JWT regaining MyPhone connection but not SIP

3CX Windows Softphone V20, 20.0.0.239, October 2023

• Fixed: Conference button disabled
• Fixed: Calls page not updated after searching
• Fixed: Redial button not implemented
• Fixed: App must recognize network connection problems and act on this
• Fixed: Call button not functioning in Voicemail Listing
• Fixed: Do not expose Sip Trunks as Contacts
• Fixed: Unregistered account still receives calls
• Fixed: Team differences between clients
• Fixed: Show unregistered icon when connection is lost
• Fixed: Stick to icons similar to web client
• Fixed: Drop down list in dialer when dropping a call
• Fixed: On reject of incoming call, we are not sending 486 busy but 187 request terminated
• Fixed: Disallow to register 2 or more accounts
• Fixed: Incorrect use of Decline translation string
• Fixed: No missed call counter when call dropped from softphone itself
• Fixed: Show duration/status in dialer when ongoing call
• Fixed: Wrong amount of voicemails for new extensions
• Fixed: Show on a call text in dialer
• Fixed: Language changing not working
• Fixed: Version showing correctly in about
• Fixed: Disabling profile leaves the initials behind
• Fixed: Support tel protocol
• Fixed: Searching in voicemail is sensitive to uppercase/lowercase
• Fixed: Not all avatars are shown + some were duplicated in Teams screen
• Fixed: Make bridged extensions searchable in dialer + resolve contact
• Fixed: Crash when provisioning new extension
• Fixed: Handle maximize of window by centering the screen in the middle
• Fixed: Show User status when dialing a number
• Fixed: Show contact type
• Fixed: Call history empty in v20
• FIxed: Issue with provision via web client
• Fixed: Provisioning not working on Tunnel password change
• Fixed: Forwarding internal calls to internal/external numbers are not resolved
• Fixed: Handle Meet/Chat/Configure links for Version 18U8 and V20
• Fixed: Missing avatar on incoming call notification
• Fixed: Missing avatar on outgoing call
• Fixed: No avatars in voicemail list
• Fixed: Voicemail listing not showing from oldest to newest
• Fixed: Keep on top functionality
• Fixed: Voicemail has one textual option for Mark as heard
• Fixed: Remove focus from Keep on top button
• Fixed: Fix provisioning after failed attempt
• Fixed: Crash when recents searching with unregistered profile
• Fixed: Removal of Meet and Chat buttons when account unregistered
• Fixed: Update steps for Adding new profile for v20
• Fixed: Incorrect conference handling in v20