5.1.3  
Routes 
 
Implementing features, see also Manager E Trunk Groups

Definition  
The external trunks in the system can be combined into trunk groups by B channels. The order in which the trunk groups are seized can be linear (always the first free trunk) or cyclical (after the last trunk seized in the outgoing direction). An overflow trunk group can be configured for each of the trunk groups. If all the trunks in a trunk group are busy during a seizure attempt, the search for trunks continues in the overflow trunk group. The search is performed in the specified overflow trunk group only. If all the trunks are busy in this trunk group as well, no additional overflow attempts are made.
It is common practice to seize outgoing trunks starting with the highest numbered trunk, whereas incoming trunks will seize the lowest numbered trunks first. In the case of Key Systems, this reduces the risk of glare, or collision on loop start trunks.
A trunk group key can be assigned for these trunk groups. The key is for outgoing calls only. A maximum of 10 Trunk group keys can be configured on one station. Trunk group key signaling is possible on several optiPoint 500/600s. These keys can only be installed on display telephones.
Calls placed on Trunk group Keys are subject to COS toll restriction levels and rules.
The system can monitor the line for the presence of dial tone. If not present, the system releases the trunk, and an error message is generated and recorded. The display user is presented with the text Not possible and reselect the Trunk group key to seize another trunk.
It is possible to turn off the detection and set fixed delay; contact your second-level Service group if this is recommended.
A route is the path that a message takes from sender to receiver. This path consists of a group of external lines with a group-wide seizure code. When a user dials this code for the connection setup, the communication system seizes a free line that is assigned to the corresponding route. In general, all lines in a route are connected to the same remote system or to the central office (CO).
The external lines of the communication system can be grouped into a total of 16 routes (8 in HiPath 3350 and HiPath 3300), based on the B channel. The seizure algorithm of the directions can be configured as either cyclical or linear. Route overflow is available.
A route is assigned to every line (in the case of ISDN BRI, 2 B channels). A line cannot be assigned to more than one route. The standard configuration for all lines is Route 1. The CO call privileges assigned to the B channel determine the access rights available to even or uneven B channels which have been set up.
Non-switched MSI lines must be deleted via system administration.
Names can be programmed for the 16 (8) routes in order to ensure user-friendly operation.
In an LCR environment, this code is only used for display; seizure codes are programmed in the Dial plan. In the case of networking, the input is to be entered or deleted in accordance with the configuration of the remote system.
Prime line refers to the seizure of an external trunk without dialing a predefined CO code.

Operation  
The user presses the trunk group key and receives a dial tone. The trunk number is displayed. If all trunks in the trunk group are busy, the corresponding LED will be lit. The LED also lights even if the trunk group has overflowed to another trunk group.
The user can put the call on Consultation Hold, transfer the call, place it in a Park location, or put it on station hold.
The trunk can be placed on hold. However, the user must use the Retrieve Line feature. When the user presses the Hold key, the display shows which line is being held; for example, Held on line.: xyz. To retrieve the held call, the user must be in an idle state. The user presses the Program/Service key, scrolls to and selects Retrieve Line followed by the line number xyz.
Alternatively, the user can dial the default access code *63 followed by the held line number; the user is reconnected to the held party. A Feature key can also be programmed on a user's telephone to retrieve a held line.

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  
Routes  
 16 trunk groups with up to 72 B channels per trunk group  
 16 trunk groups, 64 B channels  
 8 trunk groups with max. all B channels per trunk group  
No. of trunk group keys optiPoint 500  
 6  
 6  
 6  

Dependencies/Restrictions  

 Subject  
 Dependency/Restriction  
Analog trunks  
You must physically disconnect analog trunks from the trunk group.  
optiPoint, trunk group key  
You can program up to 6 or 4 trunk group keys on an optiPoint telephone. If all trunks in a trunk group are busy, its trunk group key lights up.  
Overflow  
If a trunk group is busy and overflow for this trunk group is entered in the system, the system continues searching in the overflow trunk group. If all trunks in this trunk group are also busy, no second overflow operation is performed.  
Prime Line (Simplified dialing)  
With automatic line seizure, you can program trunks in different trunk groups. You cannot define an overflow from trunk group 1 to another trunk group.  

HiPath 3000/5000 V9, Feature Description, Issue 10   up Top
Disclaimer & Copyright   ID: P31003H3590F100017618   2014-02-27