Does GPS jamming interfere with phone calls?

Hi I am from Trinidad and Tobago. Recently there has been GPS jamming on and around the island. Waze navigation does not always work. But am I wrong in thinking that whatever is being used to interfere with the GPS is also affected cellular data service? Is that your experience?

I ask because it seems to disappear in areas that were previously not dead zones in rural areas. I wasn't able to even get service up on the ridge, which is usually good.