TIA conference follows USTA's TelecomNext as show wars continue.
* Also: 'Net neutrality bill approved; Verizon speeds enterprise apps
* VPLS is generating considerable demand from enterprises due to user familiarity with Ethernet, but is still an immature technology
* Also: Qwest acquires OnFiber Communications; and BellSouth demands that USA Today retract NSA spy story
* Carriers deny handing over call records to the NSA
Aims to use its position in voice, IP telephony to boost profile.
