Nortel Networks 9150 - Manual (Page 285)

Remote Gateway 9150 Installation and Administration Guide 255
January 2005 Configuring the Remote Gateway 9150 unit
The following example assumes one 16-port RLC with no additional DSP
Application Modules, for an RLC with eight DSP channels.
Example: While one telephone call is active, which uses one DSP channel, a
call to an MCR key assigned to eight Terminal Numbers (TNs) produces a DSP
allocation error. The seven available DSP channels are insufficient for this call.
A non-blocking configuration must include one DSP channel for each
simultaneously ringing or active digital telephone set that you want to support.
Private lines
A private line is a telephone line that is used by one person only. Calls that are
routed to the private line do not ring on any other station in your office. To
dedicate a private line to a station, configure a trunk group to ring incoming calls
only on that station.
If you are connecting a fax machine to the Remote Gateway 9150 unit, then
configure a private line to the fax. Incoming calls on this line are routed directly
to the fax.
For instructions, refer to “Trunk group configuration” on page 232.
Calling permissions and restrictions
You can consider the ability to place certain types of calls from a station to be a
calling permission. Similarly, a certain type of call that is not allowed is a calling
restriction.
You can define both permissions and restrictions for each station.
Local and remote calling permissions
When you define a station as a local station, you are granting the station with
local calling permission. Calls can be made or received through the local PSTN
or to and from other stations. Calls through the host PBX are not allowed.
When you define a station as a remote station, you are granting the station with
remote calling permission. Calls can be made or received through the host PBX
only. Calls through the local PSTN are not allowed.