Cisco Cisco Expressway Maintenance Manual
X8.1.1
Unified Communications: mobile and remote access
Cisco Unified Communications mobile and remote access is a core part of the Cisco Collaboration Edge
Architecture. It allows endpoints such as Cisco Jabber to have their registration, call control, provisioning,
messaging and presence services provided by Cisco Unified Communications Manager (Unified CM) when
the endpoint is not within the enterprise network. The Expressway provides secure firewall traversal and line-
side support for Unified CM registrations.
Architecture. It allows endpoints such as Cisco Jabber to have their registration, call control, provisioning,
messaging and presence services provided by Cisco Unified Communications Manager (Unified CM) when
the endpoint is not within the enterprise network. The Expressway provides secure firewall traversal and line-
side support for Unified CM registrations.
Support to modify Maximum transmission unit (MTU) size
You can configure the maximum transmission unit (MTU) for each network interface on the
System > IP
page.
Diagnostic logging
The tcpdump facility has been removed from the
Diagnostic logging
tool.
Jabber Guest
Jabber Guest support has been removed (it was previously provided as a feature preview in X8.1). It will be
reintroduced in a future release of Expressway software.
reintroduced in a future release of Expressway software.
Cisco Expressway Administrator Guide (X8.5.2)
Page 398 of 403
Reference material
Software version history