3com SuperStack 3 NBX Manual De Usuario

Caller ID behavior varies depending on the type of device and the 
conditions under which the call is received. This appendix describes these 
caller ID conditions:

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While a forwarded call is ringing on a telephone:

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On the top line in the telephone’s display panel, the Caller ID of the 
original caller appears and a greater than (>) character on the left side 
of the display helps you to visually identify the Caller ID of the original 
caller.

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On the bottom display panel line, the Caller ID of the telephone that is 
performing the transfer appears.

After the call is answered, only the Caller ID of the original caller remains 
in the display and the greater than (>) character is removed.

Some models of the NBX Business Telephone can display two lines of 16 
characters while other models of the NBX Business Telephone can display 
two lines of 24 characters. The displays of different brands and models of 
analog telephones with built-in Caller ID can show either 16 or 24 
characters per line. The same is true of Caller ID boxes that are connected 
in-line with analog telephones.

If the length of the Caller ID information on either the top or bottom line 
exceeds the width of the NBX telephone display panel, the information is 
truncated for the first five seconds. After five seconds, the Caller ID 
information on the bottom line is cleared, and any truncated information