Configuring The B2Bua's Trusted Hosts - Cisco TelePresence Administrator's Manual

Field Description
Hop count Specifies the Max-Forwards value to use in SIP
messages. Default is 70.
Session refresh The maximum time allowed between session
interval refresh requests for SIP calls. Default is 1800
seconds.
Minimum The minimum value the B2BUA will negotiate for
session refresh the session refresh interval for SIP calls. Default
interval is 500 seconds.
Port on B2BUA The port used on the B2BUA for communicating
for VCS with the VCS. Default is 65070.
communications
Port on B2BUA The port used on the B2BUA for call
for OCS/Lync communications with the Microsoft OCS/Lync
call server. Default is 65072.
communications
Port summary table
The following table summarizes the ports used by the B2BUA service:
Service/function
Media
OCS/Lync device signaling
VCS device signaling
Communications with transcoders
OCS/Lync presence communications
This table summarizes the default ports used on the remote system with which the B2BUA service is
communicating:
Service/function
Microsoft OCS/Lync device signaling
TURN server communications
Transcoder device signaling

Configuring the B2BUA's trusted hosts

The B2BUA trusted hosts
hosts) is used to specify the devices that may send signaling messages to the B2BUA.
The B2BUA will only accept messages from devices whose IP address is included in the list of trusted
hosts.
A service restart is required to enable changes to the list of trusted hosts to take effect.
Cisco VCS Administrator Guide (X7.2)
Default B2BUA port
56000:57000 UDP
65072 TLS
65070 TLS
65080 TLS
10011 TLS
Default port on remote system
5061 TLS
3478 TLS
5061 TLS
page (Applications > B2BUA > Microsoft OCS/Lync > B2BUA trusted
Usage tips
For further information see the definition of
Session-Expires in RFC 4028.
For further information see the definition of
Min-SE header in RFC 4028.
Direction
Inbound/outbound
Inbound/outbound
Inbound/outbound
Inbound/outbound
Inbound/outbound
Applications
Page 256 of 498