Before You Begin

Before you configure VoIP interfaces, you need to perform the following tasks:

• Install Services Router hardware, including the TGM550 and the TIMs. Before power is connected, ensure that the router is grounded with a 10 AWG cable.

  For installation and grounding instructions, see the J4350 and J6350 Services Router Getting Started Guide.

  Caution: The original grounding cable for SSG Services Routers is 14 AWG only and must be replaced with a 10 AWG cable.

• Verify that you have connectivity to at least one Avaya media server running Avaya Communication Manager (CM) release 4.0 or later. For more information about Avaya media servers, see Media Gateway Controller.
• Verify that the Services Router is running Junos OS Release 8.2R1 or later.
• Download and install the most recent firmware for the TGM550. Verify that the TGM550 firmware version is compatible with the Junos OS version installed on the Services Router. For more information, see TGM550 Firmware Compatibility with Junos OS.
• If you are configuring VoIP using the Avaya Electronic Preinstallation Worksheet (EPW) and a Disk-on-Key USB memory stick, order a Disk-on-Key USB memory stick. For Disk-on-Key requirements, see Configuring VoIP Interfaces with EPW and Disk-on-Key.
• Establish basic connectivity. For more information, see the J4350 and J6350 Services Router Getting Started Guide.
• If you do not already have a basic understanding of physical and logical interfaces and Juniper Networks interface conventions, read Interfaces Overview.
• Applying an IP address to the TGM550 resets the module. If you are updating an existing VoIP configuration by modifying the TGM550 IP address, take the following precautions:
  • Log into the TGM550 and enter copy running-config startup-config to save the TGM550 configuration. (For login instructions, see Accessing and Administering the TGM550 CLI.)
  • Ensure that the TGM550 is not currently handling voice traffic.