3Com 3300 SM SuperStack 3 24 Port Switch Modules Supports up to 220 IP

Supports up to 220 IP phones or 100 IP phones with a T1 line

The Adtran NetVanta 2300 is a VPN security gateway and integrated router solution

you'll need this module in your phone

1114 / WND-4801-A Compatibility:

The ESI 48 Key IPFP is an IP phone designed for use with IP enabled ESI Communications phone systems

3Com 3300 SM SuperStack 3 24 Port Switch Modules Supports up to 220 IP3Com 3300 SM SuperStack 3 24 Port Switch 3C16987A Description: The 3Com 3300 SM SuperStack 3 Switch (MPN: 3C16987A) is a stackable, managed switch. With auto sensing 10 100 speeds, the 3300 SM offers 24 ports that are useful for any small or medium business. The 3Com 3300 SM has a Gigabit uplink port for high speed data travel. The 3300 SM's integrated matrix port makes tacking any 1100 or 3300 3Com SuperStack switch a breeze. 3Com 3300 SM SuperStack