Schedule of Revenues Disaggregated by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2022	Jan. 31, 2021
Disaggregation of Revenue [Line Items]
Total	$ 337,058	$ 339,766	$ 707,141	$ 683,191
UNITED STATES
Disaggregation of Revenue [Line Items]
Total	240,933	289,493	509,017	585,292
UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Total	77,894	31,929	159,663	61,350
Others [Member]
Disaggregation of Revenue [Line Items]
Total	18,231	18,344	38,461	36,549
Non-US [Member]
Disaggregation of Revenue [Line Items]
Total	96,125	50,273	198,124	97,899
Fintech [Member]
Disaggregation of Revenue [Line Items]
Total	23,082	18,498	45,650	38,585
Fintech [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Total	23,082	18,498	45,650	38,585
Fintech [Member] | UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Total
Fintech [Member] | Others [Member]
Disaggregation of Revenue [Line Items]
Total
Fintech [Member] | Non-US [Member]
Disaggregation of Revenue [Line Items]
Total
Net2phone-UCaaS [Member]
Disaggregation of Revenue [Line Items]
Total	13,535	10,866	26,448	20,568
Net2phone-UCaaS [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Total	7,157	5,680	13,981	10,769
Net2phone-UCaaS [Member] | UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Total
Net2phone-UCaaS [Member] | Others [Member]
Disaggregation of Revenue [Line Items]
Total	6,378	5,186	12,467	9,799
Net2phone-UCaaS [Member] | Non-US [Member]
Disaggregation of Revenue [Line Items]
Total	6,378	5,186	12,467	9,799
Traditional Communications [Member]
Disaggregation of Revenue [Line Items]
Total	300,441	310,402	635,043	624,038
Traditional Communications [Member] | UNITED STATES
Disaggregation of Revenue [Line Items]
Total	210,694	265,315	449,386	535,938
Traditional Communications [Member] | UNITED KINGDOM
Disaggregation of Revenue [Line Items]
Total	77,894	31,929	159,663	61,350
Traditional Communications [Member] | Others [Member]
Disaggregation of Revenue [Line Items]
Total	11,853	13,158	25,994	26,750
Traditional Communications [Member] | Non-US [Member]
Disaggregation of Revenue [Line Items]
Total	$ 89,747	$ 45,087	$ 185,657	$ 88,100