Nortel Remote Office 9150 Installation And Administration Manual page 45

September 2001
Bridge Ports can represent the following types of local calls:
n
Call Forward: A Local and Remote call made to another Local and Remote
telephone uses Call Forward to connect to a third telephone on the PBX.
n
Call Transfer: A Local call to a Local and Remote telephone uses Call
Transfer to connect to a local trunk or a host-based set.
n
Conference: A Remote call to a host telephone can connect to trunk call(s),
or if you are on a call to a local trunk, you can connect to host telephone(s)
to create three-or-more-party telephone calls.
To configure Remote Office 9150 Bridge Ports refer to page 225.
Host controlled call mode
When a user places a call to someone at the host site, or when someone from the
host site calls the Remote Office 9150 site, the call is in host-controlled call
mode. Calls in host-controlled mode are routed through the host PBX. See the
sample illustrations on pages 22 and 24.
Locally controlled call mode
When a user places a call from a local call appearance key, or the call is to
another telephone at the Remote Office 9150 site, the call is in locally controlled
mode. Calls that are initiated from the local call appearance key are routed
through the local PSTN. Calls to other extensions in the Remote Office 9150 site
are routed only through the Remote Office 9150 unit.
The host PBX is not involved in locally controlled mode calls. See the sample
illustration on page 26.
Quality of Service transitioning technology
If the QoS on the IP network falls below a predefined threshold, you can
configure the Remote Office 9150 unit to automatically route voice traffic away
from the IP network connection to the circuit-switched connection. See "Quality
of Service transitioning technology" on page 39 for a detailed description.
Installation and Administration Guide
Remote Office 9150 description
21