UC-ONE Clients: Android Phone

Android Phone - Call History & Side Navigation

Call History

Call History can be accessed from the History tab. Placetel UC-One for Android Tablet saves a call history for placed, received, and missed calls.

On the list of calls, there are icons indicating whether a call was incoming, outgoing, or missed.

The list of the call items consists of an icon showing what kind of call it was (a green arrow means incoming, a blue arrow means outgoing, and a red arrow means missed). It also shows the name, number, Unavailable status for the caller, and below the name, it shows the number, if available. To the right, is the date of the call and the time the call was initiated.

Call History makes it easy for you to redial and call back when you miss a call or when you want to dial a contact with whom you have recently spoken.

Side Navigation

The Side Navigation contains the following items:

  • My status
  • Call settings
  • Preferences
  • Test call
  • About
  • Help
  • Sign out

My Status

You can set your own presence by tapping on your personal status from the side navigation. It opens the My status screen where you can change your avatar, personal message, and presence status.

NOTE: Availability can also be referred to as presence status, which was the term used in previous releases of UC-Tablet.

Your avatar is the picture that represents you in your friends’ Contacts lists and in chat screens. Tapping on an avatar opens a dialog with options to select an existing image, to take a new one with your device’s camera, or to clear your avatar.

NOTE: In order to set an avatar when UC-Tablet is working inside an Android for Work profile, a Camera application inside the Work profile should be installed on the device. The system administrator should provision such an application for the given Work profile and the user should install it prior to initiating an avatar change action.

You can enter a status message into the area next to the avatar. This status text is shown in your friends’ Contacts lists.

If you see the error message “Chat Unavailable” under any tab, it means that XMPP connectivity has been lost for chat and presence; however, you can still make calls. In this case, you should contact the Placetel service.

Call Settings

The client supports the following Placetel UC One service management features, allowing Placetel UC One supplementary services to be turned on or off using the native client Preferences window:

  • Do Not Disturb
  • Always forward
  • Forward when busy
  • Forward when no answer
  • Forward when not reachable
  • Remote Office
  • Block my caller ID
  • Office Anywhere
  • Dialing service
  • VoIP calls
  • Simultaneous Ring
  • This phone number

Do Not Disturb

When you activate this service, all calls are typically blocked by the server and sent to voice mail.

Call Forwarding

By tapping on a different Call Forward option, you can enter a number to forward your calls as follows: Call Forward Always, Busy, or When Unreachable.

Remote Office

This service allows the use of any phone as the office phone from a charging and numbering perspective. For instance, a hotel room phone can be used as the office phone.

Enable Remote Office and specify a phone number to be used as the Remote Office number.

Hide Number

You can hide or display your number when calling or communicating with other parties or contacts. To hide your number, set to “Enable”. To show your number, set to “Disable”.

Placetel Anywhere

Placetel Anywhere allows service providers to offer fixed-mobile convergence (FMC) services without additional equipment.

Placetel Anywhere simplifies communications for on-the-go users and remote users by extending the features of a desk phone to any other fixed or mobile device, regardless of the network or handset manufacturer. Callers dial one number and can reach you on any phone the user chooses. A desk phone, cell phone, and/or a soft phone can ring simultaneously.

Voice call continuity is possible with the ability to move live calls from one device to another without hanging up.

Add locations (numbers) that can be used in the service using the Add New Location button. Use the Alert all locations to activate parallel ringing.

Select Diversion inhibitor to prevent a call ending up as a voice mail, which can be problematic, for example, in conference call situations.

Select Answer Confirmation to receive a separate audio prompt when answering a call from that number (location). It may be useful in cases where, for example, mobile numbers are being used to prevent incoming calls going to mobile voice mail since the call will be ended without going to voice mail if the answer confirmation is not provided.

Select Call Control to enable the server platform to provide mid-call services such as Call Transfer and Conferencing for that number (location).


The client supports the following preferences:

  • Language
  • Device ID
  • Automatic sign-in
  • Troubleshooting

Language Support

The client is prepared for localization and can be delivered in any language. Currently, the client is available in:

  • U.S. English
  • French
  • French (Canadian)
  • German
  • Italian
  • Spanish (European)
  • Spanish (Latin America)
  • Korean
  • Japanese
  • Chinese
    Additional languages are available upon request as part of a customization project.


The troubleshooting function can be used if there are issues encountered with the application. It collects and sends diagnostic information to a predefined Placetel e-mail address that is configurable via the branding process. This helps support personnel to identify the issues. The information sent consists of the application and media engine diagnostic logs.

Troubleshooting is managed by a menu entry in Settings. It can be accessed from two places in the client:

  • From the Settings button on the Sign In screen –This opens the screen that contains the help and troubleshooting-related entries. This can be used before the user has signed in, which is most often for cases when a user has issues with signing in or with connectivity.
  • From the Preferences screen, accessible from the Side navigation. These are available while the user is logged in.

Device ID

Placetel UC-One for Android Tablet has the ability to lock the user to a single desktop or mobile device so that the software cannot be used on other hardware. The Android user can copy the Device ID from Preferences before signing into the application and provide it to the company administrator. The administrator locks Placetel UC-One for Android Tablet to the reported device and the user can sign in only from this device.

Automatic Sign In

The user can choose to sign in automatically with Placetel UC-One for Android Tablet Mobile with a default account when the client is started. Together with the functionality to start Placetel UC-One for Android Tablet automatically at system startup, this makes it easier for users to remember to sign in and be available for communication.

Help Page

The client provides the ability to perform an Audio or Video test call to an echo number.

Sign Out

You can sign out at the bottom of the left-side navigation drawer.


MyRoom is an always available and a permanent room that you can use to chat with anyone that joins.

MyRoom is accessible using the MyRoom icon in the Tab bar.

You can add more participants using the add participants icon or they can join your room from your contact card. Once participants join the chat room, they can tap on the Call button of that screen to automatically join the conference.

MyRoom uses your permanent chat room, permanent collaboration room, and a conference bridge (audio or video). All MyRoom sessions start as chats but a call can be added to the session while in progress.

Others join your room by clicking your name on their Contacts list and by selecting Join Room from the contact card.

Guest Client

This Guest Client feature is specifically intended for users outside of the company. UC-Tablet users can invite Guest Client users to their My Room by selecting Copy Guest Join Link from the My Room menu button on the top right corner. The copied link delivery is outside the scope of UC-One (that is, e-mail).

Guest users can join a session with audio in the web browser by requesting a Call Back using the provided dial-in number and conference PIN. They can also use group chat and sharing inside the web browser. However, guest clients do not have the private chat possibility and they can see the chat history of messages that occurred after they joined the session.

The My Room owner is prompted to accept or reject guest client users joining My Room sessions.

A Guest Client user invitation can be revoked by selecting Reset Guest Link from the My Room menu button.

Search Enterprise Directory

The client supports a directory search of the Placetel enterprise directory. The search is performed in a separate input field in the Contacts tab. Tapping the search icon opens the search view and after a search, the enterprise directory search results are displayed with the names and numbers.

The default starting screen for a search shows the screen when the user has pressed the search icon. Typing in characters starts the filtering process through the contacts. The search is performed in the directory list. Pressing the back key minimizes the keyboard, hides the search bar, and empties the search result.

A long press on a name opens the context menu and hides the keyboard but keeps the search bar with the characters. A short press opens the contact card.

The context menu contains the following options for the directory list:

  • VoIP call
  • Video call
  • Contact details

Screen Share

Placetel UC-One for Android Tablet supports viewing a Screen Share session initiated on Desktop. When a Screen Share invitation is sent via Placetel UC-One for Desktop, the badge notification appears on the main bar and in the chat list view. Selecting the entry with screen sharing from chat list opens a communication pane with the share by default. The user can return to the chat / call (if present) with a swipe. When the share is paused, the Screen Share view remains active showing the last image that was shared.

Viewing Screen Share is available in all communication modes:

  • MyRoom
  • One-to-one chat
  • Ad Hoc ,group chat room(MUC)


Placetel UC-One for Android Tablet provides support for users with multiple devices. This includes several features:

  • Chat invitations are sent to all devices.
  • Retrieving one’s own presence notifications, when another client updates the user’s presence. The client updates its own status based on the information it receives from the server.
  • Accepting a shared presence invitation in one client is also recognized by another client, and both clients start receiving presence updates.
  • A new presence subscription made in one client is recognized in another. If the contact blocks the invitation, there are presence notifications from the server to all of the user’s clients indicating that the subscription was terminated, and this information is shown to the user. If the client receives two presence authorization requests from two or more devices for the same user, it only shows one request to the user.
  • Removing a contact from a Contacts list in one device is recognized in another client, and the Contacts list is updated (that is, the contact is removed) in the other client as well.

Push Notifications for Calls

UC-Tablet supports Push Notifications (PNs) for Incoming Calls.

This feature leverages support on the Placetel UC One Application Server to send Push Notifications to mobile applications over Google Cloud Messaging (GCM) services.

Mobile client applications use Push Notifications to get alerted for incoming calls and accepting the call as VoIP.

When there is new call, Placetel UC One sends a Push Notification to the client, which is presented to the user as either OS-specific visual notification or in the user interface of the client application.

From a user experience standpoint, accepting a call works in the same way for both push-enabled clients and non-push-enabled clients. On Android, the call is presented to the user with an application-specific Incoming Call screen with Answer and Decline buttons.

Outgoing VoIP calls are performed with SIP registration on demand, which is transparent to the user. The SIP registration is done only when the user initiates the VoIP call.

In addition to Push Notifications for new calls, the solution also supports Push Notifications for new voice mail.


Version Control

Version control is supported using the Google Play mechanisms. When a new release is available, the old version is removed from the store and users of the previous version are notified about the update possibility.

Privacy Management

Placetel UC-One for Android Tablet supports authentication with a user name and password for different services and servers requiring authentication. For convenience, the end user can save a user name and password for different realms.

When the end user adds contacts to the Contacts list, these contacts receive a New Subscriber dialog asking whether they allow the end user to see their presence. This information is stored in this contact’s presence policies.

At any time, the user can edit the presence policies (which are stored on the server). The user can see all contacts that are allowed to view the user’s presence (white list) and users that are not allowed to view the user’s presence (blacklist). This feature requires a compatible presence server.

Firewalls and Network Address Translations

The client supports rport (RFC 3581) for Network Address Translation (NAT) traversal and using the client behind a firewall. However, it is assumed that the client is mainly used with a session border controller (SBC), which also provides support for NAT traversal for several key features, such as calling (that is, currently unlikely to work without an SBC).

Failover and Failback

The client supports failover and failback mechanisms for all of the used protocols: Xsi, XMPP, and SIP. This feature adds the following:

  • Detect multiple connection endpoints (per protocol)
  • Order connection points by priority
  • Connect to the highest priority connection point
  • Reconnect to the next connection point by priority one (if there is a problem with the primary connection point)
  • Provide a failback mechanism to switch back to the primary,(whic is the highest priority connection point)

    Secure VoIP Communication

    The client supports secure VoIP communication, using encrypted call negotiation and media streams. Mandatory, preferred, and optional secure modes are supported.

Emergency Call Address Change Service

Depending on Placetel`s settings, a special dialog can be shown at login asking if the physical address should be updated. If not, login proceeds normally. If the user replies “yes”, a web browser opens with the possibility to update the physical address for emergency calls. Once the address update is complete, the user can return to the client and continue with the login.

Depending on service provider settings, a separate Emergency Call Address Change Service (ECACS) menu item may also be visible in the application. This menu item allows the ECACS service to be invoked at any time after login.

17 Acronyms and Abbreviations
APN Access Point Name
ACD Automatic Call Distribution
CC Country Codes
CLIP Calling Line Identification Presentation
CLIR Calling Line Identification Restriction
CS Circuit Switched
DSCP Differentiated Services Code Point
ECACS Emergency Call Address Change Service
FMC Fixed-Mobile Convergence
GCM Google Cloud Messaging
HTTP Hypertext Transfer Protocol
HTTPS Hypertext Transfer Protocol Secure Sockets
IM&P Instant Messaging and Presence
IP Internet Protocol
NAT Network Address Translation
PBX Private Branch Exchange
PIN Personal Identification Number
PN Push Notification
QoS Quality of Service
RCS Rich Communication Suite
RTCP Real-Time Control Protocol
SBC Session Border Controller
SIM Subscriber Identity Module
SIP Session Initiation Protocol
TN Telephone Number
ToS Type of Service
UC Unified Communication
UI User Interface
URI Uniform Resource Identifier
URL Uniform Resource Locator
VM Voice Mail
VoIP Voice Over IP
VPN Virtual Private Network
XMPP Extensible Messaging and Presence Protocol
XR Extended Report
Xsi Xtended Services Interface


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