Destination Port
Source Port
Use
UDP or TCP?
A port number specified in the SLA
test request message
50012
Transmitted SLA RTP test
packets
UDP
33434 – 33523,starts with 33434,
increments by 1 for each message
sent, 3 messages for each hop, up
to 30 hops
50013
Transmitted SLA traceroute
messages
UDP
As specified by CM, or as
specified in a CNA RTP test
request
As specified by
CM or as
reserved for CNA
RTP tests
Transmitted RTP and SRTP
packets
UDP
The next higher port number if the
port used for RTP is even, or the
next lower port number if the port
used for RTP is odd
The next higher
port number if the
port used for RTP
is even, or the
next lower port
number if the port
used for RTP is
odd
RTCP and SRTCP packets
transmitted to the far end of
the audio connection
UDP
RTCPMONPORT
The next higher
port number if the
port used for RTP
is even, or the
next lower port
number if the port
used for RTP is
odd
RTCP packets transmitted to
an RTCP monitor
UDP
1719
An unused port
number in the
range from 49300
to 49309
H.323 RAS messages
UDP
A port number specified in the SLA
discovery message
Any unused port
number
Transmitted SLA registration
messages
TCP
Determined by SNMP mgmt app
161
Transmitted SNMP messages
UDP
Determined by the SSH client or
the client Operating system
22
Transmitted SSH messages
TCP
Security
For information about toll fraud, see the respective call server documents on the
. The phone cannot guarantee resistance to all Denial of Service (DoS) attacks. However,
checks and protections are in-built to resist such attacks while maintaining appropriate service to
legitimate users.
All IP phones that have WML Web applications support Transport Layer Security (TLS). The
deskphone uses TLS to establish a secure connection to a HTTPS server, in which the upgrade
Administering your phone
May 2018
Installing and Administering Avaya J169/J179 IP Phone H.323
68