Administering fax, TTY, modem, and clear-channel calls over IP trunks

Last Updated : Jul 17, 2023 |

About this task

Using ISDN-PRI trunks, calls are sent either over the public network or over an H.323 or SIP private network to Communication Manager switches.

The endpoints that send and receive the calls must be connected to a private network. The private network uses H.323, SIP, or LAN connections between gateways or port networks.

Procedure

  1. Create one or more IP codec sets that enable the appropriate transmission modes for the endpoints on gateways.
    Note:

    Create the fax, modem, TTY, and clear-channel settings, including redundancy, on the second page of the IP Media Parameters screen.

  2. Assign each codec set to the appropriate network region.
  3. Assign the network region to the appropriate devices:
    • G4xx Media Gateway or Avaya Aura® Media Server

    • Avaya G430 or G450 branch gateways

  4. Optional Administer internetwork region connections if the G4xx Media Gateway or Avaya Aura® Media Server are shared among administered network regions.