13.1.17  
Call Hold (CH) 
 

Definition  
Users can interrupt a call in progress without releasing it. Doing so places the call on hold. 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  
 Digital trunk connection  
Software requirements  
 V5.0 or later  
 V1.0 or later  
 V1.0 or later  
CO feature  
 x  
 x  
 x  
Station feature  
 x  
 x  
 x  

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.  

HiPath 3000/5000 V9, Feature Description, Issue 7   up Top
Disclaimer & Copyright   ID: P31003H3590F100017618   2012-06-25