Shoretel's IPO and Mitel's lawsuit

On the sidelines of its analyst conference in Las Vegas, Mitel announced that it sued ShoreTel over four patent infringements. ShoreTel on the other hand was busy preparing for its IPO. Shares were expected to have started trading on wednesday. This is a sad news as it couldn't have happened at a more inopportune time for ShoreTel.

Ironically, Mitel has been having a rough ride for a couple of years. Last year, it was forced to shelve its plans for an IPO when Vonage's public offering failed to hit the right notes following a patent infringement lawsuit issued by a carrier. Moreover, Mitel's attempts to acquire InterTel has been facing rough waters following Mihalyo's private equity backed counter offer. For a company that have been in corners, the executives must well know how much pain it causes.