7  

Description of Features for Least Cost Routing 
 

7.1  

Least Cost Routing (LCR) (Not for U.S.) 
 
Implementing features, see also Manager E Least Cost Routing (LCR)

Definition  
Least cost routing provides HiPath 3000/5000 with automatic control over the route of an outgoing call. This route can be one of various public-network carriers or a private network. Based on routing tables, the system seeks the least expensive connection route for the outgoing call.
The system seizes a trunk only after it has scanned the routing tables. The system sends a dial tone as a function of the dial plan so that the station is informed of the ready-to-dial condition. The signals dialed are buffered until the routing tables have been scanned. Only then does the system make the connection.

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  
Number of LCR classes of service  
 15  

Dependencies/Restrictions  

 Subject  
 Dependency/Restriction  
 LCR  
If all the least expensive connection routes have been seized, LCR automatically switches to defined more expensive routes. The system can signal this to the user both visually and acoustically.  
The dialed station number is displayed until the station number information on the other party is received.  
If LCR is activated, the system checks for the least costly route for every trunk seizure (except when a trunk code is dialed).  
 LCR  
Digits can be transmitted either singly or en-bloc, depending on the access method and the dial plan.  
After an account code is entered, it applies to the entire connection setup.  
The allowed and denied lists are also used for LCR. The toll restriction check then refers to the digits dialed at the station without considering the trunk group code.  
LCR Class of Service  
The LCR class of service determines whether a station can use the route recommended in the path table.  
Automatic line seizure (Prime Line on)  
If "automatic line seizure" (Prime Line) is activated to the CO, Least Cost Routing (LCR) is not possible. These two features are mutually exclusive.