The US Federal Communications Commission has ruled that all telephone service providers, including VOiP services, should only be equipped with GPS devices before 2018. To better help you determine the location of a 911 call, but this is surveillance in disguise. You can use GPS jammer to stop you.
https://www.jammer-mart.com/po....rtable-gps-blockers-

Putin's magnificent summer home near the Black Sea is also protected by permanent GNSS deception areas. This gave his house the same airspace protection and portable jammer as the Kremlin. However, in recent years Russia has expanded its GNSS interference, prevention, and deception. Their GPS jammers are so advanced that they can carry out a variety of "attacks" on GNSS receivers that can disrupt all navigation systems in the selected area.
https://www.jammer-mart.com/po....rtable-blockers-jamm

In the United States, gadgets called cell phone signal jammer are becoming more and more popular, but the risk is also very small. Security experts say this is illegal and potentially dangerous.

San Diego (CBS 8)-Small tools called "phone jammers" are becoming more and more popular in the United States, but they also bring great risks. Security experts say this is illegal and potentially dangerous.

https://www.jammer-mart.com/ph....one-blockers-jammers

At a rally in 2013, a drone crashed harmlessly near Chancellor Angela Merkel
Authorities found a drone potentially contaminated with drone jammer gun radioactive cesium on the roof of the Japanese Prime Minister's office in 2015
I'll add a newer one: A drone caused a seven-minute hiatus from a Chicago Cubs game last month when it landed on Wrigley Field.
https://www.jammer-mart.com/drone-uav-jammers.html

When buying a jammer, you need to choose a signal jamming device based on your country/region, because each country/region has a different signal frequency, so the jammer you choose is different. In this state, they can choose the signal jammer that suits them, because we know that there are different types of signal blockers, such as the EU version of the signal jammer and the US signal blocker. The EU version of the powerful signal blocker will be available to you soon.
https://www.jammer-mart.com/