Nortel CS1000 and BCM PBXs are unsupported by Avaya. Businesses are replacing their Nortel Phone Systems with E-MetroTel UCX. UCX has been designed and created by the same engineers that had worked on Nortel CS1000 and BCM PBXs. Migrate today your Nortel / Avaya Norstar, BCM50, BCM450, BCM200, BCM400, Meridian Option11, Option61, Option81 and CS1000 to UCX. UCx provides Nortel PBXs supporting the complete Nortel Enterprise portfolio of telephones. And you can forget the complicated product provisioning E-MetroTel offers a simple migration for Nortel to UCX, cost effectively with many new VoIP features and capabilities.