Avaya one-X 1603SW, Administrator'S Manual, Page: 27 / 124

Other Network Considerations
Issue 1 June 2010 27
Table 4: Received Packets (Destination = SIP IP Telephone)
Destination Port Source Port Use UDP or TCP?
The number used in the
Source Port field of the DNS
query sent by the deskphone
Any Received DNS messages UDP
The number used in the
Source Port field of the
packets sent by the
deskphone’s HTTP client
Any Packets received by the
telephone’s HTTP client TCP
The number used in the
Source Port field of the TLS/
SSL packets sent by the
deskphone’s HTTP client
Any TLS/SSL packets received
by the deskphone’s HTTP
client TCP
68 Any Received DHCP messages UDP
The number used in the
Source Port field of the SNTP
query sent by the deskphone
Any Received SNTP messages UDP
161 Any Received SNMP messages UDP
PORTAUD or the port number
reserved for RTP tests
Any Received RTP packets UDP
If signaling is initiated by the
deskphone = the number used
in the Source Port field of the
signaling packets sent by the
deskphone
If signaling is initiated by the
server = System-Specific
Any Received signaling protocol
packets UDP/TCP