Revenue
For the years ended December 31, 2018 and 2017, there was no material revenue attributable to any individual foreign country. Approximately 1% of foreign revenue is billed in foreign currency and foreign currency gains and losses are not material. Revenue by geographic area is allocated as follows (in thousands):
 
Year Ended December 31,
 
2018
 
2017
Domestic
$
8,423

 
$
10,393

Foreign
4,134

 
4,406

 
$
12,557

 
$
14,799


Disaggregated information for the Company’s revenue has been recognized in the accompanying consolidated statements of operations and is presented below according to contract type (dollars in thousands):
 
Year Ended December 31,
 
2018
 
% of Revenue
 
2017
 
% of Revenue
Revenue
 
 
 
 
 
 
 
Video collaboration services
$
7,589

 
60
%
 
$
8,958

 
60
%
Network services
4,351

 
35
%
 
5,562

 
38
%
Professional and other services
617

 
5
%
 
279

 
2
%
Total revenue
$
12,557

 
100
%
 
$
14,799

 
100
%

Long-lived assets were 100% located in domestic markets during both years ended December 31, 2018 and 2017.

About Revenue Disclosures

Revenue disclosures under ASC 606 explain how a company identifies performance obligations, allocates transaction prices, and determines when revenue is recognized. This section is essential for understanding whether reported revenue reflects genuine economic activity or aggressive accounting choices. Analysts examine the mix of point-in-time versus over-time recognition, which directly affects revenue timing and comparability.

Key signals: rising contract liabilities (deferred revenue) suggest strong future revenue visibility, while declining contract assets may indicate slowing project milestones. Watch for variable consideration estimates — rebates, returns, and performance bonuses that require management judgment. Significant changes in disaggregated revenue by geography or product line can reveal shifting business mix before it appears in headline numbers. Compare revenue growth against contract liability growth to assess sustainability, and scrutinize any changes in the timing of recognition that coincide with earnings pressure.