13.3.13  

Call Hold (CH) 
 

Definition  
Call hold (CH) is important in conjunction with other features such as call waiting, consultation hold, toggle, and three-party conference. The ISDN port on hold receives an indication of the hold state and retrieval of the call.

Model-Specific Data  

 Subject  
 HiPath 3800  
 HiPath 3550  
 HiPath 3500  
 HiPath 3350  
 HiPath 3300  
Feature available in  
 x  
 x  
 x  
Hardware requirements  
 -  
 -  
 -  
Software requirements  
 V5.0 or later  
 V1.0 or later  
 V1.0 or later  

Dependencies/Restrictions  

 Subject  
 Dependency/Restriction  
CH  
For multi-device connections only. In the case of PABXs, the connection is placed on hold in the CS. The information element is transmitted to the trunk.  
Non-ISDN stations do not receive an advisory announcement (except that the station is placed on hold in the CS).  
A call can be placed on hold only in the active phase or during connection setup.