I was watching a couple televised classes by the community college & announcement was made to turn off the cell phones totally even if they were on vibration because the cells still xmit signals every so often.
In one of the classes, I kept hearing some static, zzzzzzzz, every so often prior to the announcement to turn off the cell phones totally.
Do cell phones also interfere with other wireless stuff like routers, wireless(?) modems the same as the "regular" remote telephones?
Interesting that technology evolved to interfere with each other as the cell phone problem didn't occur previous semesters.