Operating parameters 425Operating parametersIf the Expansion Module does not respond, and lines or features areconfigured on keys 32 to 85, calls can be directed to those keys which theuser cannot access. This means that the IP Phone rings, but the call cannotbe answered. In such cases, the incoming call receives Call Forward NoAnswer (CFNA) treatment.IP Phone 1120EThe IP Phone 1120E does not support Shift key functionality.If only one Expansion Module is configured in LD 11, but two or threeExpansion Modules are detected on an IP Phone 1120E, the secondand third Expansion Modules are ignored. An error message displays toalert the administrator that the hardware configuration does not match theadministered configuration.If two Expansion Modules are configured in LD 11, but only one ExpansionModule responds, the keys on the second Expansion Module are availablefor call processing but are not accessible to the user. This means thatlines and features on keys 32 to 67 can cause the IP Phone 1120E toring, but there is no way to answer it. An error message displays to alertthe administrator that the hardware configuration does not match theadministered configuration.If three Expansion Modules are configured in LD 11, but only one or twoExpansion Modules respond, the keys on the third Expansion Module areavailable for call processing but are not accessible to the user. This meansthat lines and features on keys 68 to 85 can cause the IP Phone 1120Eto ring, but there is no way to answer it. An error message displays toalert the administrator that the hardware configuration does not match theadministered configuration.IP Phone 1140E and IP Phone 1150EIf only one Expansion Module is configured in LD 11, but two or threeExpansion Modules are detected on the IP Phone, the Terminal ProxyServer (TPS) assigns keys 50 to 67 to the second Expansion Module. Thethird Expansion Module does not have keys assigned until it is configuredin LD 11.An error message displays to alert the administrator that the hardwareconfiguration does not match the administered configuration.If two Expansion Modules are configured in LD 11 but only one ExpansionModule responds, the TPS assigns keys 32 to 67 to the single ExpansionModule (using the Shift key functionality). An error message displays toalert the administrator that the hardware configuration does not match theNortel Communication Server 1000IP Phones FundamentalsNN43001-368 01.02 StandardRelease 5.0 20 June 2007Copyright © 2003–2007, Nortel Networks.