Allworx 48X 1-Year Software Upgrade Key (8320071) Handsets The ESI 5000-0461 contains a

The ESI 5000-0461 contains a configurable digital signal processor (DSP)

The Quad T1 module supports drop and insert

The J8168A features six RPS (redundant power supply) ports and two EPS (external power supply) ports

For Off-Premise Single Line Phones (OPX)

NEC ITH-4D-3 IP Phone

Allworx 48X 1-Year Software Upgrade Key (8320071) Handsets The ESI 5000-0461 contains aAllworx 48X 1 Year Software Upgrade Description: The Allworx 48X one year software upgrade key allows you to upgrade your system as many times as you need within that year. You can upgrade 48X to the highest revision and stay up to date. Please note: New Allworx 48X systems come with a one year hardware and software warranty from the date of installation. Allworx 8320071 Features: Compatibility: Allworx 48X Term: 1 Year