The major security vulnerability affects networking equipment used to connect to the Web, the companies warn.
Big-screened phones will account for more than 20 percent of mobile devices shipped by 2019, according to Juniper Research.
More consumers will rely on fingerprint sensing and facial scanning apps in coming years, Juniper Research predicts.
Companies including Intel, Qualcomm, IBM and Cisco claim tightened rules by the FCC could pinch broadband providers and lead to billions of dollars in lost investments.
More and more, says Juniper Research, people will use their mobile devices to buy products or do their banking, boosted by services such as Apple Pay.
Apple and Samsung will account for almost half of those shipments, but vendors in emerging regions will increasingly move the market, says research firm Juniper Research.
Juniper Research says tablet gaming should expand quickly in the next few years as the devices' graphics get sharper and as storage and broadband penetration grow.
The nearly $100 billion app market may not be dominated by tablets, but slate owners spend more on average for content than their smartphone counterparts.
Juniper Research finds worldwide carbon dioxide emissions from cell phone charging will more than double by 2019.
LTE will run on 1.8 billion devices by 2019, predicts Juniper Research, representing 22 percent of global active connections.