500 APPENDIX E: C ALLER IDfrom the top line displays on the bottom line. After an additional fiveseconds, if the Caller ID information from the top line exceeds thecapacity of both display lines, the numeric portion is removed and onlythe name portion displays in the display.Specific Caller IDSituationsThe Caller ID information that the telephone display panel displays can bedifferent in some specific call situations.Analog Telephones Analog telephones can use these interfaces to connect to the system:■ Single port Analog Terminal Adapter■ A port on an Analog Terminal Card■ Citel Analog Interface CardAnalog Terminal Adapter and Analog Terminal Card PortsIf you have an analog telephone connected to the system using a singleport Analog Terminal Adapter or to a port on an Analog Terminal Card,the behavior of Caller ID on the analog telephone (or on Caller ID boxesconnected in-line with the analog telephone) depends on whether theCaller ID device/telephone supports 2-line Caller ID display.■ Most analog telephones with built-in Caller ID and most Caller IDboxes do not support 2-line display of Caller ID information. For thistype of device, only the Caller ID of the original caller displays.■ If the analog telephone or Caller ID box supports 2-line display ofCaller ID information, the information displays in the same way as itdoes on an 3Com telephone.If the Caller ID information exceeds the capacity of the Caller ID display(some can display 16 characters and others can display 24 characters) theCaller ID information is typically truncated at the width of the display.Citel Analog Interface CardIf you have analog telephones connected to the system using the Citelanalog interface card, the behavior of Caller ID on the analog telephonesis the same as the behavior of analog telephones connected to a singleport Analog Terminal Adapter or a port on an Analog Terminal Card. See“Analog Terminal Adapter and Analog Terminal Card Ports” onpage 500.
