Port Number Protocol Application Client/Server
Changeable/
Fixed
10000–
10895
TCP H.323 Dynamic Port
(H.225 Send, H.245 Send/
Receive, Connection
-less
[TCP] Send Port)
- Changeable
20000 TCP UM-VMA
*3
Server Fixed
30021 TCP/UDP FTP/FTPS Server Changeable
32727 UDP MGCP
*1
for IP-CS - Changeable
33090 UDP ACS-MDW Server Fixed
33091
33092 TCP
33131
33321 TCP Access Point Login (Telnet) Server Changeable
33333 TCP CTI 3rd Party Connection - Changeable
33334 TCP CTI 1st Party Connection - Changeable
33478 UDP STUN Client Changeable
33702 UDP ACS-MDW (WSD) Server Fixed
35060 UDP SIP UA (CO) - Changeable
37547 TCP CWMP Server Changeable
37580 TCP HTTPS Server Changeable
39300 UDP PTAP for IP-CS - Changeable
40000–
40095
TCP/UDP FTP/FTPS-Data Server Changeable
50000–
65535
(Ephemeral)
UDP SNMP TRAP Client Fixed
TCP/UDP FTP Client
TCP/UDP FTP/FTPS-Data Client
UDP NTP Client
UDP DNS Client
UDP SYSLOG Client
TCP/UDP SMTP Client
TCP/UDP POP3 Client
TCP/UDP ACS-MDW Server
*1
Media Gateway Control Protocol. Used for call control command data and LCD/LED data transmission.
*2
Used by UPS daemon.
*3
Used by Unified Messaging.
300 Installation Manual Document Version 2016-03
8.6 Port Security
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