MUNI Telephones

The fixed telephone network of MU enables the employees to have a smooth voice communication on advantageous conditions.

The Landline Allows Users to:

  • Make free calls within MU - when calling to another fixed company line, simply enter the last four digits
  • Make free calls to most academic institutions in Czechia (via the CESNET e-Infrastructure)
  • Conveninent prices for calls within Czechia and abroad
  • Calls to external numbers outside MU - for calls it is necessary to add a zero before the called number (e.g. 0549497777)
  • Set up an automatic e-mail sending with missed call in INET

Special Features of the Telephone Devices

Repeat dialing the last number used

Activation: buttonREDIAL
Use: dialing the last number dialed
Example: If the telephone is equipped with the "REDIAL" button, we can utilize that the PBX remembers the device's last dialed number. After picking up the handset and pressing the "REDIAL" button, the last used phone number is automatically dialed again.

Automatic callback

Activation: FLASH (or AZV) + 6
Cancellation: #37# or AZV on digital devices
Use: when we need to reach the participant on the inner line
Example: We cannot connect to a participant at a branch, e.g. 1234, because he has another phone call and we hear a busy tone. While we hear a busy tone in the handset, we press "FLASH" (or „AZV“ on digital devices), dial 6 and hang up the handset to activate the callback. After the participant on 1234 hangs up his previous call, the PBX automatically generates a call to the branch from which the automatic callback was activated. As soon as we accept the call, 1234 will start ringing (we hear a ringing tone in the handset). If we do not take this call, the automatic callback will be deactivated by the PBX after the specified number of rings, and the 1234 will not be ringed at all. If we want to cancel the automatic callback manually, we can do so after picking up the handset by entering the code #37# or AZV.

Picking-up a call within a group

Activation: *8#
Use: when we want to pick-up a call to a participant within a defined group
Example: Imagine we share an office with another colleague, and everyone has their own branch line. The colleague is not present (or, for example, he/she is making a mobile phone call), and at the moment someone telephones to his office branch number. If we want to accept this call instead of the busy colleague and do not want to (or cannot) take it on their phone device, we can do so by picking up our phone's handset and then entering the code *8#.
Notice: A condition for this service to function is to set the respective branch numbers into a single group (by the system administrator).

Call forwarding within MU

Activation: *21* + the line number + # … (e.g. *21*1234#)
Cancellation: #21#
Use: when we need the calls coming to our branch number to ring on another phone number
Example: If we need the phone calls arriving at our branch line not to remain unanswered (e.g. during our absence, holidays, illness, etc.), we can redirect all incoming calls to a defined phone number. After lifting the handset, we enter the code *21*, then enter the line number to which we want to redirect the calls, and finally press # (so e.g. *21*1234#). The number has to be only a branch one (to another colleague from MU). To cancel the redirection of our line, we pick up the handset and enter the code #21#.

Call forwarding to an external number

This service is temporarily available to all employees, except for FF, where it is necessary to request a redirection via the form.


Activation: *22# 0 + the external number + # (e.g. *22#0777123456#)
Cancellation: #22#
Use: when we need the calls coming to our branch to ring on another external phone number
Example: If we need the phone calls arriving at our branch line not to remain unanswered (e.g. during our absence, holidays, illness, etc.), we can redirect all incoming calls to some external telephone number, such as our mobile phone. To activate, we lift the handset and enter the code *22#, then enter zero (0) and a nine-digit number to which we want to redirect the calls, and finally press # (so e.g. *22#0777123456#). To cancel the forwarding, we lift the handset and enter #22#. A notification that the redirection has been successfully activated or canceled is recognized by a specific sound signal in the handset (speaker).

Repeat the last external number dialed

Activation: * * * (three asterisks)
Use: dialing the last external number called
Example: The PBX remembers our last called external number. When we pick up the handset and dial * * *, the last used external telephone number is automatically dialed again.

User Manuals for the Telephone Devices

Related Services

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