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These instructions apply to VX900C 5.0 and later only.

These instructions assume the VXbuilder is attached to the VX node for configuration. For detailed information about configuring the VX, including specific fields in the VXbuilder, see Configuring VX.

In a VX network, call routing is performed by routing calls between two trunk groups (a trunk group is a collection of channels). The routing between these channels is set by way of the call routing system. This section provides a description of a call routing scenario between two VX nodes: SIP softphone 1 

In this example, two VX nodes are connected. VX Node 1 receives inbound SIP calls on trunk group #1,  routes those calls to trunk group #2, which is connected via BSP to VX Node 2, trunk group #2. The calls are then received on VX Node 2, trunk group #2 which routes calls to its trunk group #1, an outbound SIP line. From a call routing perspective, this scenario requires two call routes: a call route on VX Node 1 for trunk group #1, and a call route on VX Node 2 for trunk group #2.

NETWORK DIAGRAM

To setup the VX for the above setup the following are configured:

  • Configure Media Class
  • A call route table for the local SIP trunk.
  • A trunk group for the SIP trunk.
  • Channel profiles for SIP.
  • A virtual SIP interface.
  • SIP inbound calling routes using a default address.
  • BSP inbound call routing.
  • Call routing entries directed toward the BSP and SIP registrar.
  • A configured softphone registered to the VX.

Step 1: Configure Media Class (for VX1 and VX2)

  1. Access Telephony> Media Classes.
  2. Right-click on the main window, and select Insert. Click OK.
  3. Specify the number of rows. Click OK. A default Media Class (with G.711 mu-law) is created.
  4. Double-click on the entry.
  5. In the Desc field, enter Any. Click OK.
  6. Right-click in the Media Classes pane, and select Insert. Click OK.
  7. Double-click on the entry.
  8. Select the codec as G.711 A-law if required.
  9. Similarly configure the required codecs.

Step 2:  Configure Call Routes

 Configuration on VX1:
  1. Access Telephony> Call Routing.
  2. Right-click on the main window, and select Insert.
  3. Specify the number of rows. Click OK. A default Call Route is created.
  4. Double-click on the entry.
  5. In the Desc field, enter SIP-BSP.Click OK.

Configuration on VX2:
  1. Create a call route in VX2 following the instructions box. Name the route: BSP-SIP.

Step 3: Configure Trunk Groups    

Configuration on VX1:
  1. Access Telephony> Trunk Groups
  2. Right-click on the main window, and select Insert.
  3. Specify the number of rows. Click OK. A default Trunk Group is created.
  4. Double-click on the entry to modify it.
  5. In the Desc field, enter SIP IN.
  6. In the Inbound Call Only Settings box, select SIP-BSP from the Route Table drop down box.
  7. From the Media Class drop down list, select Any.
  8. Access the SIP tab.
  9. From the SIP Transport box, select the required transport (TCP/UDP). By default, TCP and UDP are enabled.
  10. Create a similar BSP Out trunk group. Under the Inbound Call Only Setting box, select any route (SIP - BSP) present in route table.
Configuration on VX2:
  1. Create BSP OUT and SIP OUT trunkgroup (similar to configuration on VX1).
  2. For BSP IN: Under Inbound Call Only Settings, select BSP-SIP from the Route Table drop down box.
  3. For SIP OUT: Under Inbound Call Only Settings, select any route (BSP-SIP) present in route table.

 

Step 4: Configure Channel Profile Tables (Configure for both VX1 and VX2)

SIP Channel Profile
  1. Access Telephony> Channel Profile Table.
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A default Channel Profile table is created.
  4. Double-click on the entry to modify it.
  5. In the Desc field, enter SIP.
  6. From the Channel Type drop down box, select SIP.

BSP Channel Profile
  1. Access Telephony> Channel Profile Table.
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A default Channel Profile table is created.
  4. Double-click on the entry to modify it.
  5. In the Desc field, enter BSP.
  6. From the Channel Type drop down box, select BSP.

 

Step 5: Configure Virtual Ports (Configure for both VX1 and VX2)

SIP Port
  1. Click on Chassis.
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A port is created.
  4. Double-click on the entry to modify it.                                                                                                                                                                                                                          
  5. From the Slot Type drop down box, select Virtual and click OK.                                                                                                                                              
  6. From the left pane, click Slot 1> Virtual.
  7. In the main pane, double-click on Port 1.
  8. In the Desc field, enter SIP IN.
  9. From the Port Type drown down box, select SIP.
  10. From the Trunk Group drop down box, select #1 SIP IN.
  11. In the NumChannels field, enter the number of channels you want to allocate to this interface. If you enter 30, you can have 30 SIP channels in use at any one time. This should be matched to your network requirements.
  12. From the Channel Profile drop down list, select SIP.
  13. Similarly create a SIP OUT port and select the Trunk Group as SIP OUT.

 

BSP Port
  1. In the left pane, navigate to Chassis>Slot 1: Virtual.
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A port is created.
  4. In the main pane, double-click on Port 1.
  5. In the Desc field, enter BSP IN.
  6. From the Port Type drown down box, select BSP.
  7. From the Trunk Group drop down box, select #1 BSP IN.
  8. In the NumChannels field, enter the number of channels you want to allocate to this interface. If you enter 30, you can have 30 BSP channels in use at any  one time. This should be matched to your network requirements.
  9. From the Channel Profile drop down list, select #2BSP.

 

Step 6: Configure BSP Peer Table 

Configuration on VX1:
  1. Access Networking> Peer Table.
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A default Channel Profile table is created.
  4. Double-click on the entry to modify it.
  5. From the Peer Type drop down list, select VX Node (BSP).
  6. In the Node ID field, enter the Node ID of VX2 (because the BSP link is external to other VX) in dotted decimal format. Access the Node ID through the System Identify Settings.
  7. In the IP Address/Interface field, enter the IPv6 address (manual or autoconfigured) of VX2. Access the IP address through the Ethernet Adapter.
  8. Click OK.

 

Configuration on VX2:
  1. Access Networking> Peer Table.
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A default Channel Profile table is created.
  4. Double-click on the entry to modify it.
  5. From the Peer Type drop down list, select VX Node (BSP).
  6. In the Node ID field, enter the Node ID of VX1 (because the BSP link is external to other VX) in dotted decimal format. Access the Node ID through the System Identify Settings. See ????
  7. In the IP Address/Interface field, enter the IPv6 address (manual or autoconfigured) of VX1. Access the IP address through the Ethernet Adapter. See ??????
  8. Click OK.

 

Step 7: Modifying the Call Route

There are three main areas to a call being processed through the Call Route table.

  • Input to Match. For the rest of the entry to be processed, the incoming number MUST match this initial rule. If it does not, the next call route entry will be evaluated for a match.
  • Translate to Output. Now that the incoming number has been matched, the call route entry now can leave the number unchanged, or modify it to better match the destination number format requirements.
  • Destination. Once the number has been matched, and the output is translated to the correct format, the call is routed to a specific destination.
Configuration on VX1:
      SIP-BSP CALL ROUTE
  1. Double-click on the SIP-BSP call route.
  2. In Match Rule, ensure the entry matches a specific number or keep it as {+} to match any number.
  3. Configure the Translation Rule to \1 (This outputs everything within the brackets in the match rule).
  4. From the Media Class drop down list, select ANY.
  5. For the Destination, click on BSP.
  6. From the TrunkGroup down down list, select BSP OUT.
  7. From the Node ID drop down list, select the Node ID.
  8. From the Peer IP or Interface drop down list, select the applicable IP address. 
  9. Click OK.

 

Configuration on VX2:
BSP-SIP CALL ROUTE
  1. Double-click on the BSP-SIP call route.
  2. In Match Rule, ensure the entry matches a specific number or keep it as {+} to match any number.
  3. Configure the Translation Rule to ensure it is to the IPv6 address of the PC where the call needs to be landed and port of the softphone. The IPv6 address should be enclosed within square brackets. For example \1@[1020::213]:5069.
  4. From the Media Class drop down list, select ANY.
  5. For the Destination, click Other.
  6. Click OK.

   

Step 8: Configure SIP Inbound Call Routing on VX1

  1. Access Telephony> SIP Inbound Call Routing
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A default Channel Profile table is created.
  4. Double-click on the entry to modify it.
  5. In Desc field, enter "from SIP".
  6. In the Address/Mask or FQDN field, enter ::/0.
  7. From the Trunk Group drop down box, select SIP IN.
  8. Click OK.

Step 9: Configure BSP Inbound Call Routing on VX2

  1. Access Telephony> BSP Inbound Call Routing
  2. Right-click in the main window and select Insert.
  3. Specify the number of rows. Click OK. A default Channel Profile table is created.
  4. Double-click on the entry to modify it.
  5. In Desc field, enter "BSP IN".
  6. In the NodeID field, select the IP address (i.e., 10:253:6:206).
  7. From the Trunk Group drop down box, select BSP IN.
  8. Click OK.

 

Step 10: Transmit and Verify Configuration

  • Once satisfied with all the settings, transmit the configuration to the VX.
  • Through VXWatch or CLI, ensure the LQM is up in both nodes.
  • In the CLI, execute the show lqm command (this checks if peer is up).
  • In VXWatch, select Peers.
Make a Call
  • Make a call from SIP softphone1 to SIP softphone2. Ensure that the softphone is registered to IPv6 address of VX before making a call.
  • Through VXwatch (in the window), the channels allocated to the SIP Local Trunk should be seen. Make a call from one SIP client to the other.

 

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