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Cisco Expressway IP Port Usage Configuration Guide
Table 15 Connections Between Expressway-C and On-premises Infrastructure (continued)
Purpose
HTTPS Configuration file
download (TFTP)
(11.x or later Jabber and 11.x or
later Unified CM)
HTTP for UDS (User Data Services)
and AXL (Administrative
XML Layer)
XMPP (IM and Presence)
HTTPS SOAP (IM and Presence)
File transfer (IM and Presence)
HTTPS to visual voicemail
MWI (Message Waiting Indicator)
MWI (Message Waiting Indicator)
Audio Video Media (RTP/RTCP)
Src. IP
Src. ports
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
30000-
C
35999
Expressway-
36000-
C
59999
28
Protocol Dest. IP
TLS
Unified CM
Node
TLS
Unified CM
Node
TLS
IM and
Presence
Service Node
TLS
IM and
Presence
Service Node
TLS
IM and
Presence
Service Node
TLS
Cisco Unity
Connection
TCP
Cisco Unity
Connection
TLS
Cisco Unity
Connection
UDP
On-prem
media
destination
Dst. Ports
6972
443 or 8443
7400
8443
7336
443 or 8443
7080
7443
Destination's media
range, eg. 16384-
32767 (DX Series)
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