Verizon’s LTE Outage Caused by IMS Software Bug

May 19, 2011

We’re not at the TIA Show in Texas this week but we thank ConnectedPlanet’s Kevin Fitchard for remembering to ask Verizon CTO Tony Melone just exactly what caused the provider’s 24-hour LTE outage in late April. According to Kevin’s thorough report it was a software bug in the IMS (IP Multimedia Subsystem) software in the core of Verizon’s network. If you’re not a telco geek IMS is a sort of uber-overseer management structure meant to keep all the disparate parts of a big-time network running smoothly. It’s still kind of new and Verizon’s glitch (according to Kevin Melone wouldn’t name the vendor with the buggy gear) shows IMS is still early days when it comes to being mission-critical.

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Posted by Paul