3Com NBX 3103 3C10403B IP Phone Handsets The 3103 also supports Gigabit

The 3103 also supports Gigabit pass-through the phone

By using only 1/6th the bandwidth of a standard phone call

and Channel Asosciated Signaling (CAS)

The Adtran 1200288L1 is a controller card for the Adtran MX2800 M13 multiplexer

Full Duplex Speakerphone

3Com NBX 3103 3C10403B IP Phone Handsets The 3103 also supports Gigabit3Com NBX 3103 3C10403B IP Phone Description: The 3Com NBX 3103 is 3Com's flagship phone for their NBX phone system. The 3C10403B features a large (320x120 pixel), graphical display that can be managed in multiple ways. The 3C10403B features 10 soft keys, 10 fixed feature keys, and an additional 8 programmable feature buttons allow the 3Com NBX 3103 to handle up to 12 calls. The 3Com 3103 manager phone is truly a manager's phone. The 3103 also supports