UC-ONE Clients: Desktop Mac OS & Windows

Mac OS & Windows - Chat + Audio-Video Calls


Chat View

When you initiate a chat, the Chat window opens. Chatting with a contact is possible only when you are both online. If your contact initiates a chat, you see a pop-up notification in the bottom right-hand corner of the screen. If you close the Chat window (or tab on Chrome) and open it again, sent chat messages are shown in the window as chat history.

When the chat opens, you see the contact’s information at the top of the screen. If you want to use the whole area for writing, you can press the background of the information or the top bar. You can contract or expand the information of the contact during the chat and you can leave it open or closed depending on your preference.

At the top of the message area, there are four links: Yesterday, Last week, Last month, and All history. From these links, you can load history from your local storage and different time frames. You can delete the history using the drop-down menu.

In the text field, you can add a smiley emoticon. Smiley emoticons can also be added by manually entering the corresponding characters that represent that particular emoticon. You can send text by pressing ENTER.

Emojis are also supported and are rendered as ordinary emoticons when received.

To enter a line break in the text field, you can use the following key commands:


Use either one of the short commands, CTRL+C or CTRL+V, or right-click the selection for a menu to copy or paste the text to or from the Chat window.

It is also possible to chat with users in other domains. Placetel also supports Google federation. Group chat is not supported in Google federation, so the group chat option with these contacts is shown in grey.

File Transfer

File transfer functionality is accessible only through the Chat window.
15) To open the File Selection dialog box, click the Send File button located to the side of the text field.
16) Select the file to be sent from the dialog and then click Open. You can also drag and drop a file into the Chat window.
17) Once the file offer is issued and during its transfer, you can cancel the transfer (at any time) by clicking Cancel.
18) Accept an incoming file transfer by clicking the Accept button.
19) Reject the file transfer offer by clicking the Decline button.

After the file transfer has completed, the received files can be opened or viewed in the file manager by using the File received, click to open, and Show in folder links.

In error situations, partially received files are not deleted automatically.

Group Chat

Start a group chat by “multi-selecting” and right-clicking the Main window contact list. More people can be added later to the chat by “drag and drop”. Only the owner can add more participants.

A group chat works the same way as a one-to-one chat. All messages from anyone are sent to everyone else. All contacts need to be online to be able to participate in a group chat. You cannot invite an offline contact or a contact that is not on a device that supports group chat. This does not affect the group chat in any way.

A group chat history is saved both in MyRoom and in ad hoc chat rooms and is available to view later in the Messages tab of the Main window.

In the text field, the contacts’ names appear in different colors to easily distinguish between who is writing.

Only the newest chat room messages are stored on the server. One-to-one chat messages are only saved locally. When the optional Message History feature is enabled by your service provider, messages sent from your other devices are also shown.

Deleting a chat room is not supported.

Chat rooms can be moderated by the owner. Use the right-click menu options to remove a participant from your chat room. If needed, the removed participant can join later. The removal also applies to desktop share sessions.

Audio and Video Calls

The following table describes additional Communications window icons and explains what you can do with them, for voice and video calls.

Icon What you can do
Enter additional digits using the dial pad at any time during the call (for example, to insert a conference number). The dial pad is not movable.
Mute your microphone by clicking the mute icon.
Adjust the volume bar to adjust the volume. Dragging it all the way to the left mutes your speakers.
Use this icon to access the Call Options menu. In the Call Options menu, you can find different actions to use for a call depending on your settings and your service provider.

In the Options menu, there are the following options:

  • Transfer a call to a third party (native desktop only).
  • Put the call on hold. Note that if you hold the call, the other party cannot “unhold”. This freezes a video call to the last frame of the video feed. In both voice and video calls, this is communicated to all parties by a notification appearing in the middle of the screen.
  • Hide or show your own video.
  • Add participants to the call (native desktop only).

As an alternative, in general available Feature Access Codes (FACs) for call management work during calls, for instance *55 for direct transfer to voice mail, but the ongoing call must be put on hold and a new call must be made to the FAC ”number”. Using DTMF for the same purpose does not work.

When establishing a call to a contact, you can choose several ways to call. Select the contact you wish to call and press the Call icon. This calls the default number. If you right-click on the contact you wish to call, you can choose the number to call from a right-click menu. There can be several phone numbers available in the menu. The work phone is the default and top most number is followed by mobile and other numbers. This also applies to the transfer and conference windows. However, in certain cases the transfer/conference default number can differ from other call options in other menus.

Dial a number or SIP URI of format user@domain or sip:user@domain in the combined Search and Dial field to make a call (native desktop only). Once you type your numbers, UC-Desktop searches for contacts on both the local contact list and the enterprise directory.

You can also call circuit-switched network numbers such as Global System for Mobile Communications (GSM); however, this depends on the service provider network you are using; there is no technical limitation.

Choose your video size from the Preferences and the Video tab. Your selection is used by default for future video calls. The available sizes are automatically presented based on your camera.

Call From Computer

Select a contact from your contact list to start communication and click the desired communication button. Type a phone number in the Search and Dial field at the top of UC-Desktop window (search or communicate) to communicate with someone who is not on your contact list.

Call From Phone

The second option to communicate in the row of communication buttons is the Call from Phone. When you click this button, the desk phone instantly starts ringing and the call is established from your desk phone. This depends on your service provider configuration as other devices may also ring.

For remote calls initiated using UC-Desktop, you can also have mid-call controls such as hold/resume, transfer, and add participant.

Automatic Busy – In Call presence also works with the Call from Phone feature.

Depending on your service provider settings, it is also possible to control calls initiated without UCDesktop in the Active Communications view. The same mid-call controls are also available in this case.

Answer Call

When someone is calling you, you see a pop-up notification on your screen. You can choose to answer, silence the incoming call, and then open a chat session with the caller, reject the call, or silence the incoming call by closing the pop-up notification window. If you silence the call, the ringtone is silenced but the caller does not see anything on their end. You can answer or reject the call after silencing it only if you have chosen the chat option. If you close the incoming call pop-up notification to silence an incoming call, then you do not have an option to answer or reject it any more. When choosing the chat option, chat is only enabled after the call has been answered or rejected.

If you reject the call, it causes the line to sound busy at the caller’s end and they know that you rejected the call.

When someone is calling you with a video, you see the same pop-up notification; however, the options are answer with video, answer as voice only, silence and chat, reject, or silence (by closing the pop-up window). If you decide to answer as voice only, the call is voice only.

Contact Name Lookup for Incoming Calls

UC-Desktop performs a local contact search for incoming calls. If the number matches one of the contacts on the UC-Desktop contact list, the name is shown on the incoming call screen along with the alert. Both the display name and phone number are shown when available.

If there is no match to a local contact, UC-Desktop looks for a match in the Telephony Directory, and if a match is found, the available information is shown for the incoming call. If there is no match in the Telephony Directory, the display name is taken from the available information in the incoming call. Whenever you retrieve your call logs/history, UC-Desktop does a lookup in the local contacts and populates the name if a match is found.

Missed Call or Communication

When you have one or more missed calls or other types of communications, there is a notification on the left-hand side of the navigation pane in the Main window. Clicking the icon takes you to the missed communication in the Communications History view.

Full Screen in Video Call

Full screen mode can be activated by clicking the Full Screen button or by double-clicking anywhere on a video.

Exiting full screen mode is done by pressing the Esc key (on both Windows and OS X) or by doubleclicking the window. Exiting full screen makes the video call go back to its original state (even if there was resizing of the window previously before going full screen).

In a full-size window, you can see a similar Options menu at the top. It has the same functionality as it does in the normal view. When you move the mouse, the top bar and lower communication buttons appear on top of the video.

Multiparty Sessions

You can have many participants in a call, either in a MyRoom or in an ad hoc multiparty call (native desktop only). Add more participants by dragging and dropping them on to the Communications window or by selecting the Conference menu item via the Communications window menu button. By choosing the menu item, you can also add participants with just a telephone number.

In contrast to using MyRoom, which uses your permanent chat and collaboration rooms and conference bridge, you can start ad hoc multiparty sessions by either selecting multiple contacts on the contact list and starting a chat, by calling them, or by expanding a one-to-one session into a multiparty session by dragging and dropping a contact into the Communications window. In an ad hoc session, the room used is a temporary one that is deleted once the session ends (that is, when the last participant leaves). Voice conferencing does not use a bridge but instead uses the Placetel UC-One N-Way Calling supplementary service in a sequential fashion. UC-Desktop dials out to all participants and takes everyone off hold after the last attendee answers.

In newer deployments with the Video Server (UVS), the ad hoc room created for the session has a limited lifetime and becomes inactive when idle for too long.

If the XMPP service is not available, then ad hoc multiparty calls are not available.

Call Waiting

You can have one active call at any one time if you receive a new incoming call and accept it. The existing call is put on hold and you can change between these two calls by using the Hold and Unhold buttons.

Call Transfer

Blind call transfer is available in the Communications window; choose the Transfer Call menu item to transfer the call to someone else (native desktop only). Attended call transfer is also available in the same window, first call someone to check if the called party can take the incoming call and then transfer the incoming call to the desired called party.

Message Waiting Indication

The MWI service allows you to receive a notification for a waiting voice mail or video mail. By clicking on the message icon in the upper part of the Main window, UC-Desktop calls the predefined mailbox number to allow the user to listen to the voice mail or view the video mail. With this view, you only have two history tabs: one for calls and another for chat.

It is also possible to call voice mail from the dialer by long pressing the “1” icon in the dialer.

Call Park and Retrieve

Call Park is particularly suited for shared environments where one person can answer the call, park it, do something else for a while and continue the call from another device or let somebody else continue the call (supported on native desktop only).

Transfer an ongoing VoIP call to a Call Park server and then retrieve it when needed. An ongoing call can be parked against your own number or another number (an extension). Call Retrieval works in the same way, the parked call can be retrieved from your own number (an extension) or another number (an extension) to provide flexibility for who is picking up the parked call.

A parked call is visible on your desktop in the Active Communications area so that you can easily retrieve it, but only for the duration of the Placetel UC-One Call Park announcement. After the announcement is over, the parked call disappears from the Active Communications area (since the triggering call is disconnected). After the call disappears from the Active Communications area, the user must remember the extension to which the call has been parked to retrieve it using the Main window menu (or feature access code), unless the call was parked to the one’s “own” extension. If the call is not retrieved after a certain time, then the server calls the parking user.

Call Pull

Call Pull allows you to pull an ongoing call from one of your devices to another one where the Call Pull feature is used (native desktop only). Call Pull can also be used with Feature Access Codes (FACs), in this case, *11. In this release, user interface support has been added to the desktop so that an end user does not have to remember FACs.

MyRoom Moderator Controls

You can control the functionality available to MyRoom participants if you are the owner of the session in MyRoom. You can do the following:

  • Dismiss one or more participants (only Chrome supports this).
  • Mute one or more participants.
  • Lock or unlock the room (when locked, no additional participants can join).
  • See active talker indication.
  • See full audio participant list.
    To invoke the features, you can use either the right-click menus or you can click on the MyRoom moderator control icons of a participant. Note that most features are not available via icons. To dismiss or mute all participants or lock the room, use the right-click menus available for your own icon at the top of the participant list.

If you are not the owner, you can only see the XMPP (chat) participant list.

Forced Logout

Depending on your service provider settings, you may see a pop-up saying that you have been logged out due to another instance of the client logging in (native desktop only). This feature allows Placetel UC-One to track similar online client instances and only allow one of them to be online at the same time. When Placetel UC-One notifies the client to log out, all connections are terminated and client returns to the login window.

Headset Support

You can control incoming and ongoing calls from a compatible headset. The feature set supported is answer/hang up as well as mute/unmute. The following is a list of tested example devices, although other devices should also work:

  • Plantronics Voyager Edge UC
  • Plantronics Savi 700 series
  • Plantronics Blackwire C3xx, C4xx, C5xx, and C7xx
  • Plantronics Calisto 620
  • Plantronics Voyager Legend UC
  • Logitech H570e Mono
  • Logitech BCC950
  • Logitech Conference Cam Connect
  • Jabra Biz 2300/2400
  • Jabra Speak 510
  • Jabra Pro 930 (wireless)
  • Sennheiser SC 230/260
  • Sennheiser SP 20
  • Sennheiser MB Pro1 UC


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