Thank you, Steve. Consolidated total revenue for the first quarter increased 17%, as Steve mentioned, to $4.5 million compared to $3.9 million for the first quarter of the prior year. Our consolidated service revenue for the first quarter increased 19% to $4.1 million compared to $3.5 million reported for the first quarter of the prior year.
Our consolidated Telecommunications segment service revenue for the quarter increased 21% or $691,000 to $4 million as compared to $3.3 million reported for the first quarter of the prior year, offset by a 26% decrease or $40,000 decrease in our Web Service segment service revenue. Product revenue for the first quarter decreased 3% or only $11,000 to $368,000 compared to $379,000 for the first quarter for the prior year.
Our consolidated operating expenses for the first quarter increased 45% to $5.3 million compared to $3.7 million for the first quarter for the prior year. During the first quarter, our acquisition-related expenses accounted for a $684,000 of additional general and administrative expenses, making up a large part of that increase.
Net loss for the first quarter of $715,000 or $0.04 per basic and diluted common share compared to net income of $140,000 or $0.01 per basic and diluted common share for the first quarter of the prior year. On a non-GAAP basis, net income for the first quarter of $308,000 or $0.02 per basic and diluted share as compared to $275,000 or $0.02 per basic and diluted common share for the same period of the prior year.
Our EBITDA for the first quarter was a loss of $721,000 as compared to earnings of $284,000 for the same period in the prior year. Adjusted EBITDA for the first quarter was income of $245,000 as compared to $389,000 for the same period of the prior year. Our cash, cash equivalents and restricted cash balance at March 31 was $16.2 million as compared to $17.7 million at December 31, 2020.
Operating activities utilized $248,000 of cash, cash equivalents. Our investing activities utilized $2.2 million of our cash, cash equivalents. And financing activities provided $965,000 of cash, cash equivalents and restricted cash, primarily provided by proceeds from stock option exercise.
I will now turn the call over to Doug Gaylor, our President and COO, for additional comments on sales recovery.