The CTI Client offers support for the command line. A distinction is made between start parameters and control parameters.

Startup parameters are used to transfer parameters to the application instance to be started. For example, with the parameter "-start_delay = 20" the start of the CTI Client can be delayed by 20 seconds.

Command line commands are used to control an application instance that is already running. The cti_client.exe started by command line transfers her parametres to the running application and finishes itself then without becoming visible.
Examples of this are the parameters for call control such as /dial, /answer or /drop.

General rules for using the command line

  • Command line commands begin with a slash ("/").
    • A command line command can be followed by a value and/or several parameters.
    • If a value follows a command directly, it must be separated by spaces.
      Example: /dial 0371-123456
  • Command line parameters begin with a minus sign "-" and are separated by spaces.
  • Format of the parameter values:
    • Parameter values that contain spaces or slashes "/" or "-" must be enclosed in quotation marks. Examples:
      • /dial "0371 / 123456"
      • -txt="room 4 - 23"
    • Parameter values with German umlauts (, , , ...) should be avoided. These characters are transferred incorrectly when the command line is transferred.

The following start parameters are supported:

-start_delay=SECONDS Application is started with delay. Maximum 120 seconds.
-wait_for_dir=SECONDS Application waits, if the working directory is not immediately available. Maximum 120 seconds. Version 2.2.073 or greater.
-dir=WORKING_DIRECTORY The cti_client.exe reads and stores her configuration and dates in the declared working directory. The working directory can be also placed in quotation marks. Hint: The cti_client.exe have to be run always by a program link with registered working directory.
-local_profile=PROFILE_NAME The application starts with the specified local profile.
Notes to: Local Profiles
-min Application is started minimized.
-loglevel LEVEL Activates log output with a certain level.
"/" and spaces
The start parameters listed above are also recognized if they are specified with "/" instead of "-" or a space instead of "=". (Compatibility with program versions older than 3.0.055)


  • cti_client.exe -wait_for_dir=20
    Starts the CTI Client and waits 20 seconds for the working directory to be available.
  • cti_client.exe -dir=c:\xtelsio_data
    Starts the CTI Client with the specified working directory.

The following command line commands are supported:

Condition: An application instance of the CTI Client must already be running.

Call control commands
/dial PHONENUMBER The PHONENUMBER will be dialed.
[-timeout=SECONDS] The optional parameter -timeout can be used to indicate that the dialing process should be terminated after X seconds.
[-drop=SECONDS] The optional parameter -drop enforces to hang up automatically after X seconds. This is done regardless of the call status (calling, busy, connected). The timer starts immediately after dialing.
[-line=x.x] With the parameter "line", a line can be selected (eg 2.1 = second line, first address (MSN)), or the line name or MSN.
/drop End current phone call.
[-line=x.x] see "/dial"
[-callId=x] Action refers to the call with this call ID. The call ID corresponds to the interworking parameter
[-callIdTapi=x] Action refers to the call with this TAPI-call-ID. The TAPI-call-ID corresponds to the interworking parameter %call.idTapi%
[-current] Action refers to the current call (whether active, held or incoming).
[-active] Action also refers to the active call.
[-held] Action refers to the call on hold.
[-ringing] Action refers to the incoming call.
[-first] Action refers to the first call in time.
[-last] Action refers to the last call in time.
[-lastEvent] Action refers to the call with the most recent TAPI event.
/answer The current call is answered, if supported by the TAPI driver.
[-xxx] The parameters described under "/drop" are supported.
/transfer Executes the call transfer. Condition: There is a consultation call and a held conversation.
/dtmf DIGITS The DIGITS are sent as DTMF dialing on the current call. This works only if the TAPI driver supports lineGenerateDigits.


  • cti_client.exe /dial 12345678
    The already running application instance initiates a call to 12345678.
  • cti_client.exe /dial 12345678 -drop=10
    The already running application instance initiates a call to 12345678 and hangs up after 10 seconds.
Presence status commands
/presence STATUS Sets the presence status to one of the following states: "available, away, brb, pause, busy, meeting, private, extern, dnd, holiday, msg". If no status is specified, the current status is retained.
You can find a more detailed description of the presence status here ...
[-txt=TEXT] Sets a message text for presence status.
[-dnd=on/off] Activates or deactivates do not disturb for the assigned TAPI line.
[-cf=PHONENUMBER] Sets call forwarding for the assigned TAPI line to the specified number. If no number is specified, call forwarding is deactivated.
[-begin=DATE TIME] Sets the "status start" to the date and time
in format "YYYY-MM-DD HH:MM".
[-end=DATE TIME] Sets the "status end" to the date and time
in format "YYYY-MM-DD HH:MM".


  • cti_client.exe /presence available
    Sets the presence status to "Ready".
  • cti_client.exe /presence pause -txt="Text message..." -dnd=on
    Sets the presence status to "pause" including "text message" and activated do not disturb.

  • cti_client.exe /presence -dnd=off
    Deactivates do not disturb while maintaining the current presence status ("/presence" without STATUS).
  • cti_client.exe /presence away -cf="+49 371 123456"
    Sets the presence status to "Away" and the call forwarding to the specified number.
  • cti_client.exe /presence meeting -begin="2019-10-30 14:00" -end="2019-10-30 16:00"
    Sets the presence status "Meeting" from 2:00 p.m. to 4:00 p.m. on October 30, 2019
Application control commands
/close Closes a running application instance without confirmation dialog.