Avaya one-X 1603SW, Administrator'S Manual, Page: 30 / 124

Network Requirements
30 Avaya 1603SW-I SIP Deskphones Administrator Guide
Security
For information about toll fraud, see the respective call server documents on the Avaya support
Web site. The 1603SW-I SIP IP Deskphones 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.
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:
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Depending on the protocol indicated by the SIP_CONTROLLER_LIST parameter,
supporting signaling channel encryption while registering, and when registered, with
appropriately administered Avaya Communication Manager.
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Restricting the response of the 1603SW-I SIP IP Deskphones to SNMP queries to only IP
Addresses on a list you specify.
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Specifying an SNMP community string for all SNMP messages the deskphone sends.
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Restricting dialpad access to Local Administration Procedures to experienced installers
and technicians and requiring password entry to access Craft procedures.
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Restricting the end user’s ability to use a telephone Options application to view network
data.
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Restricting the reception of incoming calls only from configured controllers.