S hares in telecoms testing firm Spirent Communications plunged by as much as 34.3% as it warned its clients are delaying their spending on infrastructure.

The business expects a 20% fall in revenue this year as network providers which use Spirent to make sure their 5G services are not at risk of going down “continue to be very challenged”, and so are not spending on Spirent’s services.

Telecoms testing firm Spirent’s shares plunge 34% on profit warning comes via ChinaTechNews.com.