Siemens 3000 v3.0 用户手册

The second call is an incoming call that is signalled on 
your handset during a call and that can be queried by 
you (e.g. 

Æ page 51). 

A second call can be answered in the following call 
states:
•

You are on a single call,

•

You are on an enquiry call,

•

You are holding a conference,

•

You are on a call which you intend to add to a con-
ference,

•

You are toggling between two partners.