Cisco Expressway Series User Manual

Purpose Src. IP Src.
ports
Protocol Dest. IP Dst. Ports
AVmedia to on-prem Lync clients Gateway
Expressway
56000-
57000
UDP Lync clients Lync client
media ports
Screen sharing from on-prem Lync
clients
Lync client
443
TCP Gateway
Expressway
56000-57000
Media from Microsoft interoperability
B2BUA towards on-premises Cisco
collaboration recipients
Gateway
Expressway
56000-
57000
UDP Deployment
dependent; bridge,
endpoint, or a
SIPproxy
Endpoint media
ports
ICEnegotiation and TURNrequests
from Gateway Expressway to
Expressway-E TURNserver
Gateway
Expressway
56000-
57000
UDP or
TCP
Expressway-E
TURNserver
UDP3478
TCP3478
(3478-3483 on
large systems)
UDPTURNmedia relays Expressway-
E
TURNserver
24000-
29999
UDP Any (reflexive or
relay) from
MSclient or Edge
50000-59999
(Edge range) or
client media
ports
TCPTURNmedia relays Expressway-
E
TURNserver
24000-
29999
TCP Any (reflexive or
relay) from
MSclient or Edge
50000-59999
(Edge range) or
client media
ports
VCS Only
Presence to Lync FEServer
Gateway
Expressway
10011 TLS Lync FEServer 5061
VCS Only
B2BUAcommunication with an
external transcoder (eg. Cisco AMGW)
Gateway
Expressway
65080 TLS External transcoder 5061
Table 19 Media Path Port Reference
37
Cisco Expressway IP Port Usage Configuration Guide

Cisco Expressway Series Specifications

General

Category	Gateway
Deployment Options	On-premises, Cloud
Protocols	SIP, H.323
Security	TLS, SRTP
Management	CLI
Virtualization	VMware
Form Factor	Appliance, Virtual
Functionality	Interoperability
Integration	Cisco Unified Communications Manager
Network Interfaces	Gigabit Ethernet