Revenue Recognition - Summary of Company's Revenues from Its Product Lines (Detail)	6 Months Ended
	Jan. 31, 2014
Cortelco Products and Services [Member] | Equipment/ Software [Member]
Revenues by product lines
Type of revenues earned	Individual sale
Cortelco Products and Services [Member] | Professional Services [Member]
Revenues by product lines
Type of revenues earned	Individual sale
Cortelco Products and Services [Member] | Maintenance Contracts [Member]
Revenues by product lines
Type of revenues earned	-
CSPR Products and Services [Member] | Equipment/ Software [Member]
Revenues by product lines
Type of revenues earned	Individual sale
CSPR Products and Services [Member] | Professional Services [Member]
Revenues by product lines
Type of revenues earned	Individual sale
CSPR Products and Services [Member] | Maintenance Contracts [Member]
Revenues by product lines
Type of revenues earned	Individual sale
CSPR Telephony Billing [Member] | Equipment/ Software [Member]
Revenues by product lines
Type of revenues earned	-
CSPR Telephony Billing [Member] | Professional Services [Member]
Revenues by product lines
Type of revenues earned	Individual sale
CSPR Telephony Billing [Member] | Maintenance Contracts [Member]
Revenues by product lines
Type of revenues earned	-