Table 3: Received packets (Destination = IP phones)
Destination port
Source port
Use
UDP or TCP?
The number used in the Source
Port field of Qtest packets sent by
the phone
7
Received Qtest messages
UDP
22
Any
Packets received by the SSH
server of the phone
TCP
The number used in the Source
Port field of DNS packets sent by
the phone
Any
Received DNS messages
UDP
The number used in the Source
Port field of the packets sent by
the HTTP client on the phone
Any
Packets received by the HTTP
client on the phone
TCP
PUSHPORT
Any
Packets received by the HTTP
server of the phone
TCP
500, 2070, or 4500
500 or 4500
Received IKE or IPsec
messages (if NVIKEOVERTCP
is 1 or 2)
TCP
The number used in the Source
Port field of received SSO packet
18414
Any
Received SSO commands
TCP only
546
Any
Received DHCPv6 messages
UDP
The number used in the Source
Port field of the TLS/SSL packets
that are sent by the HTTP client on
the phone
Any
TLS/SSL packets that the HTTP
client receives on the phone
TCP
68
Any
Received DHCP messages
UDP
161
Any
Received SNMP messages
UDP
500
Any
Received DHCPv6 messages
UDP
1024 – 5000 (ephemeral port
selected by O/S)
Any
Received Traceroute, HTTPS,
HTTP messages
Traceroute over
UDP
HTTP/HTTPS
over TCP
1720
Any
Received H.323 signaling
messages
TCP
49,300 – 49,309
Any
Received RAS messages
UDP
2048 – 3029
Any
Received RTP, RTCP, SRTP,
and SRTCP messages
UDP
500, 2070, or 4500
500 or 4500
Received IKE or IPsec
messages (if NVIKEOVERTCP
is 0 or 1)
UDP
Table continues…
Network requirements
May 2018
Installing and Administering Avaya J169/J179 IP Phone H.323
65