Preventing Calls To Avaya Cu360 From Invalid Numbers - Avaya CU360 Installing And Administering

Initial administration

Preventing calls to Avaya CU360 from invalid numbers

About this task
Prevent calls from invalid numbers to enhance security, especially if users can gain access to
Avaya CU360 from public networks. Preventing such calls blocks hackers from attacking your SIP
and H.323–based networks.
You can prevent calls from invalid numbers separately for each network interface. If Avaya CU360
is not registered to:
• A SIP server, incoming SIP-based calls using IP addresses are rejected. Calls must be
established using:
- The user@host syntax.
- The host##user syntax where host is the Avaya CU360 IP address and user is the SIP
user name.
• A gatekeeper, incoming H323–based calls using IP addresses are rejected. Calls must be
established using:
- The alias@host syntax.
- The host##alias syntax where host is the Avaya CU360 IP address and alias is the H.323
alias.
Procedure
1. Do one of the following:
• On the endpoint, click Configure > Advanced.
If you configured a PIN to gain access to the advanced settings, Avaya CU360 prompts
you to enter PIN.
• On the web interface, click Administrator Settings.
On the endpoint, Avaya CU360 displays the Advanced window.
2. Click Protocols > General.
3. Do one of the following:
• On the endpoint, select Yes for Reject SIP/H323 Invalid Number Calls.
• On the web interface, select Yes for the following fields:
- Reject SIP invalid number calls
- Reject H.323 invalid number calls
July 2020 Installing and Administering Avaya Collaboration Unit CU360
Comments on this document? infodev@avaya.com
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