The ICT Directorate allows users of the telephone network, regardless of call block, to communicate via telephone free of charge with users from 19 academic institutions. The communication is feasible with voice transmission via the Academic Network (GUNET). The required voice technology is Voice over IP (VoIP).
The 20 academic institutions involved so far in the GUNET’s VoIP service and the numbers appear in the table below.
| Calling Numbers |
Aristotle University of Thessalonica | 231099xxxx |
Democritus University of Thrace | 2541079xxx, 2531039xxx, 2551030xxx, 2552041xxx |
GRNET | 210747424x, 210747425x, 210747426x, 210747427x, 210747568x |
National and Kapodistrian University of Athens | 2107274xxx, 2107275xxx, 2107276xxx, 2107277xxx, 2107461xxx, 2107462xxx, 2103688xxx, 2103689xxx |
National Technical University of Athens | 2107721xxx, 2107722xxx, 2107723xxx, 2107724xxx |
Research Academic Computer Technology Institute | 26109602xx, 26109603xx, 26109604xx, 210693060x, 210693070x, 210693071x, 210693072x, 210693073x, 210693074x, 210693075x |
Foundation for Research and Technology | 2810391xxx |
Athens University of Economics and Business | 2108203xxx |
Aegean University | 2241099[0-4]xx Ρόδος, 2251036xxx Λέσβος, 2271035xxx Χίος, 2273082xxx Σάμος, 2281097xxx Σύρος, 2106492[0-4]xx Αθήνα |
University of Western Macedonia | 2461056[2-7]xx Κοζάνη, 2385055[0-2]xx Φλώρινα |
University of Thessaly | 2421074xxx, 2421093[0-2]xx, 2421006[3-5]xx, 2410565xxx, 2431047[0-2]xx, 2441066[0-2]xx |
University of Ioannina | 2651095xxx, 26510964xx, 26510965xx, 26510966xx, 26510967xx, 26510968xx, 26510969xx, 2651097xxx, 2651098xxx |
University of Crete | 2810393xxx, 2810394xxx, 2810545xxx, 2831077xxx, 2103702040 |
University of Patras | 2610962xxx |
University of Pireaus | 2104142[0-7]xx |
University of Peloponnese | 274107498x , 274107499x , 274107435x Κόρινθος 273108965x , 273108966x , 273108967x , 273108968x , 273108971x, 273108972x Σπάρτη 275209610x , 275209611x , 275209612x , 275209613x Ναύπλιο 272106510x , 272106511x , 272106512x , 272106513x Καλαμάτα 27103721xx , 27103722xx , 271023012x , 271023013x Τρίπολη 210747540x , 210747541x Αθήνα |
Technical University of Crete | 2821037xxx |
TEI of Athens | 2105385xxx |
TEI of Crete | 2810379xxx |
TEI of Messolonghi | 26310582xx, 26310583xx, 26310584xx |
Harokopion University | 21095491xx, 21095492xx, 21095493xx |
Users of the telephone network may establish calls with the institutions above, whether or not they can make long distance calls, free of charge.
The method you should follow is: