Avaya 16CC Guía de usuario Pagina 31

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Other Network Considerations
Issue 1 January 2008 31
Security
For information about toll fraud, see the respective call server documents on the Avaya support
Web site. The Avaya Agent Deskphone 16CC telephones cannot guarantee resistance to all
Denial of Service attacks. However, there are checks and protections to resist such attacks
while maintaining appropriate service to legitimate users.
The telephones support Transport Layer Security (TLS) for signaling and for secure
communications (SRTP). This mechanism allows the telephone to establish a secure
connection to an HTTPS server, in which the upgrade and settings file can reside. This setup
adds security over another alternative. The telephone files downloaded during initialization or
upgrade are digitally signed, so TLS is not required for this type of file security.
You also have a variety of optional capabilities to restrict or remove how crucial network
information is displayed or used. These capabilities are covered in more detail in
Chapter 6:
Server Administration and include:
Depending on the SIGSIGNAL parameter, supporting signaling channel encryption while
registering, and when registered, with appropriately administered Avaya Communication
Manager.
Restricting the response of the 16CC to SNMP queries to only IP Addresses on a list you
specify.
Specifying an SNMP community string for all SNMP messages the telephone sends.
Restricting dialpad access to Local Administrative (Craft) Procedures, such as specifying
IP Addresses, with a password.
Restricting dialpad access to Craft Local Procedures to experienced installers and
technicians.
Restricting the end user’s ability to use a telephone Options application to view network
data.
Registration and Authentication
An Avaya Agent Deskphone 16CC requires an Outboard Proxy SIP (OPS) extension on Avaya
Communication Manager and a login and password on the SES Server to register and
authenticate it. For more information, see the current version of your call server administration
manual.
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