System cannot recognize the DTMF tones

After you install or upgrade Messaging, you might experience problems with the recognition of DTMF tones or while leaving voice mail messages. You might face these problems due to the ARP spoofing protection of the gateway.

NoteNote

This problem is only valid for G450 gateways and requires root access to the gateway. If you require assistance, consult Avaya Services.

Troubleshooting steps

Procedure

  1. Start an SSH session on <G450 IP Address>.
  2. Log in as root.
  3. Enter the password for the root user.
  4. After you log in successfully, type the following command.

    clear arp-cache

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September 18, 2012
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