TULSA, Oklahoma - AT&T and T-Mobile, have announced a plan to team up so they can protect their respective customer bases from robocalls.

The two companies have begun a new cross-network call authentication system that will act as a universal caller ID system designed to stop illegal caller ID spoofing. Previously call verification was available for in-network calls but it will now apply to calls from T-Mobile to At&T and vice-versa.

Callers will now see call verified on their screens when they receive a call.