Exhibit 23.02

IDT CORPORATION

Consent of Independent Registered Public Accounting Firm

We consent to the incorporation by reference of our report dated October 12, 2007, except for the fifth paragraph of Note 18, as to which the date is October 13, 2008, with respect to the 2006 and 2007 consolidated financial statements of IDT Corporation included in this Annual Report (Form 10-K) for the year ended July 31, 2008, in each of the following:

1. Registration Statement No. 333-53719 on Form S-3;

2. Registration Statement No. 333-61565 on Form S-3;

3. Registration Statement No. 333-71991 on Form S-3;

4. Registration Statement No. 333-73167 on Form S-8;

5. Registration Statement No. 333-77395 on Form S-3;

6. Registration Statement No. 333-80133 on Form S-3;

7. Registration Statement No. 333-86261 on Form S-3;

8. Registration Statement No. 333-100424 on Form S-8;

9. Registration Statement No. 333-104286 on Form S-3;

10. Registration Statement No. 333-105865 on Form S-8;

11. Registration Statement No. 333-115403 on Form S-3;

12. Registration Statement No. 333-116266 on Form S-8;

13. Registration Statement No. 333-119190 on Form S-3;

14. Registration Statement No. 333-130287 on Form S-8;

15. Registration Statement No. 333-130288 on form S-8;

16. Registration Statement No. 333-130562 on Form S-8; and

17. Registration Statement No. 333-146718 on form S-8

/s/ ERNST & YOUNG, LLP

MetroPark , New Jersey

13 October 2008