Your Cart is Empty


IP Office IP400 Expansion Modules

Thank you for visiting Phonelady.com, your #1 source for Avaya IP Office. We stock all the IP400 Expansion Modules, so you can expand your IP403, IP406, IP406V2 and IP412 Systems. They are also supported on the IP500 and IP500V2 systems through Release 10.1, offering you very cost effective expansion.

See why our customers say we have the best prices and quality on IP Office IP400 Expansion Modules.
Also check out our Conference Phones, Network Switches, Emergency and Industrial Phones and Refurbished Avaya Partner, Norstar and BCM systems, phones and parts.

Stay Informed