VoIP Module


Use this pane to configure the VoIP spans that carry RTP traffic. These spans correspond to the IP ports on the VoIP modules.


Accessing this Pane:

IMG EMS > Logical IMG > Physical IMG -> Network Interfaces > Network Interface


Maximum Objects:

IMG 1010 - 2 per Physical IMG 1010 (2 Modules)

IMG 1004 - 1 VoIP Processor per IMG 1004 (Embedded VoIP on Motherboard)


Related Topics:

Configuring VoIP

Determining VoIP Module Type


IMG 1010 Pane 10.5.x+



IMG 1004 Pane 10.5.x+




------ Important Note on VoIP Modules and Licensing !!!!!! -------

If IMG 1010 was ordered with or have had a second VoIP module added to the motherboard, you must configure both VoIP module 0 and VoIP module 1 in the ClientView GUI. Below explains why!!!


The IMG 1010 has the ability to configure up to 1024 VoIP ports. The first 512 VoIP ports are embedded on the VoIP module in slot 0 which is identified as VoIP Module 0 on the ClientView GUI. The second set of 512 VoIP ports are added by inserting a second VoIP module into slot 1. This module is identified as VoIP Module 1. When both VoIP module 0 and VoIP module 1 are physically connected to the IMG 1010 motherboard, they will by default split up the VoIP resources even though only one VoIP Module has been configured.




In this example, by default the resources will be spread over the two modules. By default 250 VoIP ports will be allocated for VoIP module 0 and 250 VoIP Ports will be allocated for VoIP module 1. Since VoIP module 1 has not been configured then the second set of VoIP ports will not show up as licensed and cannot be accessed.



Field Descriptions:

Physical Interface:

Select VoIP Module 0: Port 0 for the IMG 1010 or

Select VoIP Processor for the IMG 1004


Logical Interface:

Select Redundant Data for the IMG 1010

Select Data for the IMG 1004


Address Type:

The IMG only supports IPV4. This will be automatically populated and cannot be changed.


Network IP address

This field is automatically populated with the IP address configured for that VoIP module under the Network interfaces. If the user attempts to configure the VoIP module before configuring the Network Interface an error message will be displayed and the user will have to go back and configure the network interface first.


Module Configuration Profile

This informational field indicates the Codec Profile you have configured (in the BOOTP Host Flags).


Starting RTP Port (10.3.2 ER2 and above)

To change the default port (Module 0 = Port 8000, Module 1 = Port 11072), click on the field and enter a value in the Range Dialog box shown below. Value entered must be a multiple of 2. You can enter a value directly in the text box or use the sliding range at the top of the box.

To change the value for an existing configuration you must delete the VoIP module object and then re-create it to change the port number.




Fully Qualified Domain Name (FQDN) (10.3.3 ER2)

The FQDN to be inserted in outgoing SIP messages when FDQN is enabled in the SIP Profile. See Fully Qualified Domain Name Support for more information.


Monitoring Fields

Number of Channels configured (Object Table)

This field shows how many VoIP channels have been successfully configured and whether they are In Service or not. The first port displayed is the port number configured in the "Starting RTP Port" field explained above. The default values for the Starting Ports is shown in table below and continues in steps of four till all resources are configured. The Range of Ports varies depending on the Profile configured. Profiles are configured in the dhcpd.conf file.


Module #

Default Starting Ports

Module 0

Port 8000

Module 1

Port 11072


See Vocoder Information link on how many ports can be configured per profile.