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Revenue, Deferred Revenue and Prepaid Commissions (Tables) | 12 Months Ended
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Dec. 31, 2022
Revenue from Contract with Customer [Abstract] |
Schedule of Revenue | The following table presents our revenues disaggregated by revenue type:
|  | For the Year Ended December 31,
(Dollars in thousands) |  | 2022 |  | 2021 |  | 2020
Revenue: |  |  |  |  |  |
Paging revenue |  | $ | 73,323 |  |  | $ | 75,845 |  |  | $ | 79,916 |
Product and other revenue |  | 2,299 |  |  | 2,981 |  |  | 3,677 |
Wireless revenue |  | $ | 75,622 |  |  | $ | 78,826 |  |  | $ | 83,593 |
License |  | $ | 7,202 |  |  | $ | 5,917 |  |  | $ | 5,245 |
Professional services |  | 12,565 |  |  | 17,161 |  |  | 17,910 |
Hardware |  | 2,211 |  |  | 2,267 |  |  | 2,841 |
Operations revenue |  | 21,978 |  |  | 25,345 |  |  | 25,996 |
Maintenance |  | 36,934 |  |  | 37,982 |  |  | 38,591 |
Software revenue |  | $ | 58,912 |  |  | $ | 63,327 |  |  | $ | 64,587 |
Total revenue |  | $ | 134,534 |  |  | $ | 142,153 |  |  | $ | 148,180 |
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, 2022, 2021 and 2020. 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) | 2022 |  | 2021 |  | 2020
Revenue: |  |  |  |  |
United States | $ | 130,380 |  |  | $ | 138,265 |  |  | $ | 145,349 |
International | 4,154 |  |  | 3,888 |  |  | 2,831 |
Total revenue | $ | 134,534 |  |  | $ | 142,153 |  |  | $ | 148,180 |
Schedule of Deferred Revenue | Changes in the balance of total deferred revenue during the twelve months ended December 31, 2022, are as follows:
(Dollars in thousands) | December 31, 2021 |  | Additions |  | Revenue Recognized |  | December 31, 2022
Deferred Revenue | $ | 26,406 |  |  | $ | 58,536 |  |  | $ | (58,418) |  |  | $ | 26,524 |
Schedule of Deferred Commissions | Changes in the balance of total prepaid commissions during the year ended December 31, 2022, are as follows:
(Dollars in thousands) | December 31, 2021 |  | Additions |  | Commissions Recognized |  | December 31, 2022
Prepaid Commissions | $ | 1,821 |  |  | $ | 3,957 |  |  | $ | (4,033) |  |  | $ | 1,745 |

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