Author: Josh Robert Nay

Josh Robert Nay is the founder and Editor-in-Chief of TruTower. He has worked in the telecommunications industry since 2003 and specializes in GSM based technology. He also uses (too many) VoIP apps and is a long-time user of BlackBerry, Android, and Windows Phone. He adores anything having to do with space exploration and writing. In addition to the links below, he can be found on LinkedIn and can also be found on his website at http://www.joshrobertnay.com.

Fixing Common Error Messages While Using International Travel SIM Cards

When using roaming SIM cards, inevitably we find ourselves eventually running into those evil “Invalid SIM card” errors or “please insert SIM” even though the SIM card is already in…