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34 9600 Series SIP IP Telephones Administrator Guide SIP Release 2.0
Security
For information about toll fraud, see the respective call server documents on the Avaya support
Web site. The 9600 Series SIP IP 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.
9600 Series SIP IP Telephones support Transport Layer Security (TLS) for signaling and for
secure communications (SRTP). This standard allows the telephone to establish a secure
connection to a HTTPS server, in which the upgrade and settings file can reside. This setup
adds security over another alternative.
Communications between the 9600 Series SIP IP telephone and the Personal Profile Manager
(PPM) can also be secured by setting the CONFIG_SERVER_SECURE_MODE parameter.
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 9600 Series SIP IP Telephones 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 Craft Local Procedures to experienced installers and
technicians and requiring password entry to access Craft procedures.
● Restricting the end user’s ability to use a telephone Options application to view network
data.
RTCPMONPORT PORTAUD +
1 (if
PORTAUD
is even) or
PORTAUD –
1 (if
PORTAUD
is odd)
RTCP packets transmitted to
an RTCP monitor
UDP
System-specific Any unused
port number
Transmitted signaling
protocol packets
UDP
Table 6: Transmitted Packets (Source = SIP IP Telephone) (continued)
Destination Port Source Port Use UDP or TCP?
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