support for 16 Avaya 4400-series and 2420
large screen digital telephones. Adds an additional
16 DigitalStation ports to IP403, IP406 and
IP412 to support 4400 Series and 6400 Series
Telephones including 2420 Digital Terminals.
Included IP400 EXP RJ45/RJ45 1M Blue for connecting
Expansion Module to Base Unit. Power Lead