Revenue, Deferred Revenue and Prepaid Commissions

12 Months Ended

Dec. 31, 2021

Revenue from Contract with Customer [Abstract]

REVENUE, DEFERRED REVENUE, AND PREPAID COMMISSIONS

REVENUE, DEFERRED REVENUE AND PREPAID COMMISSIONS

Revenue Recognition

Revenues are recognized when control of the promised goods or services is transferred to our customers, in an amount that reflects the consideration we expect to be entitled to in exchange for those goods or services.

The following table presents our revenues disaggregated by revenue type:

	For the Year Ended December 31,
(Dollars in thousands)	2021		2020		2019
Revenue:
Paging revenue	$	75,845	$	79,916	$	85,067
Product and other revenue	2,981		3,677		3,100
Wireless revenue	$	78,826	$	83,593	$	88,167
License	$	5,494	$	5,179	$	8,950
Professional services	17,161		17,910		19,189
Hardware	2,267		2,841		3,618
Subscription	423		66		—
Operations revenue	25,345		25,996		31,757
Maintenance	37,982		38,591		40,365
Software revenue	$	63,327	$	64,587	$	72,122
Total revenue	$	142,153	$	148,180	$	160,289

The Company is currently structured as a single operating (and reportable) segment, a clinical communication and collaboration business. The U.S. was the only country that accounted for more than 10% of the Company’s total revenue for the years ended December 31, 2021, 2020 and 2019. Revenue generated in the U.S. and internationally consisted of the following for the periods stated:

	For the Year Ended December 31,
(Dollars in thousands)	2021		2020		2019
Revenue:
United States	$	138,265	$	145,349	$	154,766
International	3,888		2,831		5,523
Total revenue	$	142,153	$	148,180	$	160,289

Deferred Revenues

Our deferred revenues represent payments made to, or due from, customers in advance of our performance. Changes in the balance of total deferred revenue during the twelve months ended December 31, 2021, are as follows:

(Dollars in thousands)	December 31, 2020		Additions		Revenue Recognized		December 31, 2021
Deferred Revenue	$	29,796	$	59,165	$	(62,555)	$	26,406

During the twelve months ended December 31, 2021, the Company recognized $25.2 million of revenue related to amounts deferred as of December 31, 2020.

Prepaid Commissions

Our prepaid commissions represent payments made to employees in advance of our performance on the related underlying contracts. These costs have been incurred directly in relation to obtaining a contract. As such, these costs are amortized over the estimated period of benefit. Changes in the balance of total prepaid commissions during the year ended December 31, 2021, are as follows:

(Dollars in thousands)	December 31, 2020		Additions		Commissions Recognized		December 31, 2021
Prepaid Commissions	$	2,290	$	3,957	$	(4,426)	$	1,821

Prepaid commissions are included within prepaid expenses in the Consolidated Balance Sheets and commissions expense is included within Selling and marketing on the Consolidated Statements of Operations.

Remaining Performance Obligations

The balance of consideration allocated to remaining performance obligations at December 31, 2021, was $43.4 million. We expect to recognize approximately $30.4 million of these remaining performance obligations over the next 12 months, with the remaining balance recognized thereafter.