User's Manual

Related topics:
Registration and Authentication on page 37
Secure Shell Support on page 37
Registration and Authentication
Avaya call servers support using the extension and password to register and authenticate
Avaya B189 Conference IP phones. For more information, see the current version of your call
server administration manual.
Secure Shell Support
Secure Shell (SSH) protocol is a tool that the Avaya Services organization can use to remotely
connect to IP deskphones to monitor, diagnose, or debug deskphone performance. Release
1.0 supports only the SSHv2 version. Because of the sensitive nature of remote access, you
can disable permission with the SSH_ALLOWED parameter. Even if permission is given, the
deskphone has several inbuilt security features.
You can configure the idle or inactivity time that will disable SSH with SSH_IDLE_TIMEOUT
Time-to-Service
TTS changes the way IP phones register with their gatekeeper, reducing the time to come into
service.
In the absence of TTS, the system uses a coupled two-step procedure to bring the IP phones
into service:
1. H.323 registration
2. TCP socket establishment for call signaling
The TTS feature separates these steps. In Communication Manager Release 4.0, you can
enable IP phones for service with just the registration step. TCP sockets are established later,
as needed.
The TTS feature also changes the direction of socket establishment. With TTS,Communication
Manager, rather than the phone, initiates socket establishment, which further improves
performance. In Communication Manager Release 4, you can enable TTS by default and can
also disable TTS for all IP phones in a given IP network region by changing the IP Network
form. TTS applies only to IP phones whose firmware has been updated to support this feature.
TTS does not apply to the following phones: third party H.323, DCP, BRI, and analog.
Other network considerations
Administering Avaya B189 Conference IP Phone December 2013 37