Nortel RLC, Руководство по установке и администрированию

Страница: 136 / 466

110 RLC Installation and Administration Guide
Configuring the host PBX for the RLC Standard 4.0
Understanding port relationships
This section focuses on the relationship between the two principle RLC ports in
a system using the PSTN:
„
remote ports
„
network ports
Functionality provided by the various port types
You can configure ports on the RLC as one of the following:
„
a remote port
Remote ports support digital telephones on remote units for host-controlled
calls. The PBX features and DNs assigned to the RLC ports are the PBX
features and DNs available to the remote telephones.
„
a network port
Network ports place and receive PSTN calls to and from remote devices.
Network ports require only the most basic configuration on the host PBX
that allows this port to place and receive calls of the appropriate type for the
particular remote unit. RLC network ports do not use PBX features such as
conference or call forward.
When QoS on the IP network degrades, QoS Transitioning Technology
opens PSTN connections using paths provided by the network ports. Refer
to “Configuring QoS” on page 211 for information on configuring QoS
thresholds.
„
a local TCM port
Local TCM ports support local telephones connected at the host PBX.
ATTENTION!
This section is critical to your understanding the operation
of the Reach Line Card.