SIP Calls Port Reference
Purpose Src. IP Src. ports Protocol Dest. IP Dst. Ports
SIPsignaling Expressway-
C
25000-29999 TCP or
TLS
Expressway-
E
7001 (for first traversal zone;
7002 for second etc.)
SIPsignaling Expressway-
C
5060 UDP SIPendpoint
5060 (often, but could be
different, >=1024)
Port number defined by
registration (if registered) or by
DNSlookup
SIPsignaling Expressway-
C
25000-29999 TCPor
TLS
SIPendpoint
>=1024
Port number defined by
registration (if registered) or by
DNSlookup
SIPsignaling SIPendpoint
(or its
firewall)
>=1024 UDP Expressway-
E
5060
SIPUDPdisabled by default.
Not recommended for internet
facing connections.
SIPsignaling SIPendpoint
(or its
firewall)
>=1024 TCP Expressway-
E
5060
SIPTCPdisabled by default
(X8.9.2 and later).
SIPsignaling SIPendpoint
(or its
firewall)
>=1024 TLS Expressway-
E
5061
SIPsignaling SIPendpoint
(or its
firewall)
>=1024 MTLS Expressway-
E
5062
Assent RTP
(traversed
media)
Expressway-
C
36000-59999 UDP Expressway-
E
2776 or 36000 (Small/Medium)
36000 - 36010 (even ports)
(Large)
Assent RTCP
(traversed
media)
Expressway-
C
36000-59999 UDP Expressway-
E
2777 or 36001 (Small/Medium)
36001 - 36011 (odd ports)
(Large)
Assent RTP
(traversed
media)
SIPendpoint
(or its
firewall)
>=1024
Could be the firewall
port where the media
egressed, rather than an
endpoint port
UDP Expressway-
E
36000-59999
Table 9 SIPCalls Port Reference
16
Cisco Expressway IP Port Usage Configuration Guide
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