Avaya IP Office 500 Control Unit | Digitcom.ca (Business Pho

Avaya IP Office 500 is a modular, flexible design. The 4 universal slots house interface cards. (Digital stations and Analog devices), and each interface card can also support a 'daughter' card. (4 analog trunk and 2 or 4 port BRI), this design approach ensures cost effective, smooth growth. IP Office 500 supports 2 to hundreds of users and up to 4 T1/E1 lines (96/120 channels), 32 ISDN BRI channels and 144 analog trunk lines are available. New to release 4.0 is SIP trunking (Session Initiation Protocol). Customers can enjoy low-cost call services with up to 128 connections to Service Providers offering "SIP trunk services" (often including free site-to-site) calling).
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