Create Trunk Group

Step 1. Under the “Trunks” section, select “Voice IN” and click the “Create New/ Trunk Group” button.(Fig. 1).


Fig. 1. Adding a new Trunk Group

Step 2. Configure the new trunk group (Fig. 2). Basic trunk configuration parameters are:

  • Friendly name – name to identify created trunk group on your DIDWW user panel.

  • Capacity Limit – maximum number of simultaneous calls for the trunk group.

  • Choose trunks – trunks that should be included in this trunk group (up to 10 voice trunks may be added).

  • Assign trunk to all DIDs – if checked, all DIDs on your account will be assigned to this trunk group.


Fig. 2. Create trunk group window

Step 3. Click “Create” to complete the trunk group configuration (Fig. 2).


To assign all DIDs on your account to this trunk group, check Assign trunk to all DIDs and confirm action in opened window (Fig. 3)


Fig. 3. Assign trunk to all DIDs confirmation window

Step 4. Enter Priority and Weight values for each trunk included in this trunk group in order to define the traffic load distribution between destinations (Fig. 4).


Fig. 4. Trunk group details window

An alternative method of entering the advanced load distribution parameters is by editing voice trunks under the “Trunk Group Configuration” option (Fig. 5).


Fig. 5. Trunk group configuration window

Advanced trunk configuration parameters are:

  • Priority – the priority of this target trunk. DIDWW will attempt to contact the target host with the lowest indicated priority number. The range is 0-65535.

  • Weight – a trunk selection mechanism. The weight field specifies a relative weight for entries with the same priority. Larger weights will be given a proportionately higher probability of being selected. The range is 0-65535.

  • Ringing Timeout – timer after which it will end the transaction with internal disconnect code “Ringing timeout” if the call was not connected.

  • Available Re-routing Disconnect Codes – SIP disconnect codes for which DIDWW will not attempt the next voice trunk.

  • Re-routing Disconnect Codes – disconnect codes received from the destination on which DIDWW will continue rerouting of calls using the additional trunks in a trunk group.

  • Use default Re-routing Disconnect rules – enables the default re-routing configuration.


The created trunk group is assigned to a DID number(s) in the same way as a regular Trunk Assignment

See Service Failover and Load balancing for more informatioon.