I have a network running 100 users with pc and 20 SIP phones. I also have 3 servers runnign an extranet on a 100GB leased line.
My primary device is a ZyWall 35 and I have decided that this device is a bottle neck and a limit to performance.
What device should I look at as an upgrade? I have no idea where to start and already bored of slick salesmen who know nothing.