The Call Center can be used by the general public to reach Koç University, and for Koç University students and staff to report problems and seek solutions. The  infrastructure for this service is provided by the  Information Technologies department.

The Center can be reached by phone, e-mail or a web interface.Three different departments of the University operate independent Call Centers: IT, Telephone Exchange Operators and the Comptroller’s Office.

Koç University also provides a Voicemail service. This service is integrated into the fixed office phones, and is accessible by calling the “5555” extension. To access this service from outside the campus, users should first dial 338 1000, and then dial “5555”.

Initialize Your Voice Mailbox and Record Your Name

  • Dial 5555 from a campus phone
  • Enter your 4-digit extension and press #
  • Enter your initial password and press #
  • The system prompts you to enter the rest of the information it needs, including:
    • Your name and surname
      • Press 1
      • Record your name and press 1 again
      • Press # to confirm the recording

Access Your Voice Mailbox

  • Dial 5555 from a campus phone
  • Enter your 4-digit extension and press #
  • Enter your password and press #

Change Voice Mailbox Password

  • Access your voice mailbox (see “Access Your Voice Mailbox”)
  • Press *454 in sequence
  • Enter your new password and press #

Review and manage your voicemail messages

  • Access your voice mailbox (see “Access Your Voice Mailbox”)
  • Press 2 (“get messages”) to access your messages
  • Press 0 to listen
  • Press *3 to delete
  • Press # to skip a message without deleting

Change Your Name Record

  • Access your voice mailbox (see “Access Your Voice Mailbox”)
  • Press *55 in sequence
  • Record your name after the tone.
  • Press 1 to stop
  • Press # to confirm the recording

When the Voicemail System Password is Forgotten or Want to Learn the Initial password

If you forgot your password or want to learn your initial password, you can open trackit through IT-Trackit

Koç University provides setup and operation services for telephone exchanges and telephony components at its campuses.  The Avaya IP-based telephone exchange provides digital, analog and IP phone services to more than 7000 subscribers. The system enables communications with the outside world through three different technologies:

ISDN, (Integrated Services Digital Network)

The basic standard in digital communications, ISDN is used by telecom operators to provide various services. Koç University provides its services with 3 ISDN PRI lines.

In the ISDN system, information is transmitted up to the end user in digital form. The most important advantage in transmitting audio signals digitally is low noise interference and high audio quality.

ISDN PRI systems enable simultaneous phone calls with 30 users over a single channel. Thanks to the DID (Direct Inward Dialing) feature, users can be reached directly. It is possible to assign direct numbers to every staff member.

VoIP, (Voice Over Internet Protocol)

VOIP enables audio transmission over the IP protocol.

The most significant advantage of VoIP is that it provides cost savings to operators in phone calls. Transmitting audio signals in packets it over IP networks has become more cost-effective and attractive in comparison to analog technologies. In VoIP systems, audio signals are compressed with compression algorithms and transmitted in packets. Some common algorithms areG.729, G.723, G.726 and G.711.

FCT, (Fixed Cellular Terminal)

This method provides significant cost savings in GSM calls. GSM calls from office phones are router over a FCT terminal and conducted over the GSM protocol, effectively converting landline to GSM calls to GSM to GSM calls.