net2phone subscription revenue growth accelerated in the fourth quarter increasing 46% year over year.
Our subscription revenue margin remained robust, increasing 10 basis points to 83.5%.
Within our fintech segment, NRS revenue increased by 76% year over year, led by increased sales of merchant services and specifically NRS Pay payment processing.
At July 31, NRS had over 14,000 active terminals and over 5,600 payment processing accounts, more than double the number of accounts a year earlier.
Average revenue per terminal exclusive of terminal sales increased from $126 in the year-ago quarter to $169 in the fourth quarter of 2021.
Also within our fintech segment, money transfer revenue decreased 49% compared to the year-ago quarter.
Absent that impact, fourth-quarter fiscal 2021 revenue would have increased by 36% compared to the year-ago quarter.
Sequentially, money transfer revenue increased by over 6%.
Traditional Communications revenue in the fourth quarter increased 10% year over year.
Within Traditional Communications, Mobile Top-Up revenue increased by 41%, powered by increases in sales in its B2B channel.
Fourth-quarter earnings per diluted share increased to $1.46 from $0.82 in the fourth quarter last year.
Cash generation during the quarter helped to drive an increase in cash and current investments of $34 million during the quarter and $52 million during the fiscal year to $161 million as of July 31, and we have no debt.
Following the quarter close, our NRS business sold a 2.5% stake to a private investment fund for $10 million, implying a $400 million valuation for that business.
That was based on approximately 19 times NRS' trailing 12-month revenue at the end of our third quarter.

Summary:
Fourth-quarter earnings per diluted share increased to $1.46 from $0.82 in the fourth quarter last year.