Cisco Cisco TelePresence MCU 4510 Release Notes
New features in version 4.3
Cisco TelePresence MCU 4.3(2.18) Software Release Notes
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Faster audio switching
Improvements to the audio mixing capabilities in Version 4.3 of the MCU enable it to prepare the outgoing stream
more quickly than in previous versions. Any delay that occurs when the active speaker changes is reduced and
participants will experience a more natural flow of conversation.
more quickly than in previous versions. Any delay that occurs when the active speaker changes is reduced and
participants will experience a more natural flow of conversation.
This function is enabled automatically and does not require configuration.
API improvements
Version 4.3 includes extensions to the MCU’s API in order to allow greater automated control of units. New
commands include:
commands include:
Ability to set and read all IP configuration settings
Ability to set and read all H.323 and SIP registration settings
Ability to set and read all unit-wide content, encryption and time settings
The device.query message now indicates if the MCU is in a shutdown state
The participant.statistics message now includes all information from the Participant > Statistics page
Cisco Unified Communications Manager (CUCM) integration
Version 4.3 includes improved integration with Cisco Unified Communications Manager (CUCM). This includes:
Ability to receive Keypad Markup Language (KPML) messages for keypad control
Improved identification of participant names
Support for more authentication methods
These improvements to CUCM integration are applied automatically and do not require configuration.
Static ARP
In Version 4.3 it is now possible to statically configure associations between MAC addresses and IP addresses rather
than being retrieved automatically from the network. This increases security for important units with a known MAC
and IP address within the network.
than being retrieved automatically from the network. This increases security for important units with a known MAC
and IP address within the network.
To add static ARP entries, use the ‘arp’ command from the serial port command prompt.
Cisco rebranding
The Cisco TelePresence MCU is now rebranded as Cisco across its user interface, in order to provide clarity and
consistency across the product range.
consistency across the product range.
H.225 keepalives
In Version 4.3, the MCU sends periodic TCP keepalive messages on the call signaling connection of H.323 calls. This
prevents firewalls from terminating the connection due to inactivity on the signaling channel.
prevents firewalls from terminating the connection due to inactivity on the signaling channel.
The TCP keep-alive messages are sent automatically and this behavior does not require configuration.
SIP outbound
SIP outbound is a new way for the MCU to connect to SIP registrars that support this functionality. It means that
instead of opening a new connection each time the MCU needs to communicate with the registrar, a single
connection is established and used for all future communication. This improves security and helps with firewall
traversal.
instead of opening a new connection each time the MCU needs to communicate with the registrar, a single
connection is established and used for all future communication. This improves security and helps with firewall
traversal.