Nortel Networks 9150 - Manual (Page 107)

Remote Gateway 9150 Installation and Administration Guide 77
January 2005 Planning for Remote Gateway 9150 unit installation
Similarly, install DSP application modules on the RLC, if needed.
Note: The Remote Gateway 9150 unit does not ship with trunk interface
modules or DSP application modules installed. The RLC does not ship with
DSP application modules installed.
4 Obtain the ISDN BRI information for each line from the Remote Gateway
9150 site’s PSTN service provider. This information must be configured on
the Remote Gateway 9150 unit.
5 Identify the telephone number assigned to the B-channel that is to be the
primary trunk connection to the RLC on the host PBX. This telephone
number must be configured on the RLC, and is used by the RLC to
establish connections with the Remote Gateway 9150 unit.
6 Similarly, obtain the telephone number assigned to this Remote Gateway
9150 unit’s RLC port. This telephone number must be configured on the
Remote Gateway 9150 unit, and is used by the Remote Gateway 9150 unit
to establish connections with the RLC.
Implementing Voice over IP mode
In Voice over IP (VoIP) mode, the system processes all incoming and outgoing
calls across the IP network through the host PBX. The system routes calls made
to external parties to the PSTN using host PBX trunks. Calls processed through
the host PBX are referred to as host-controlled calls.
Note: Local PSTN calls at Remote Gateway 9150 sites require access to ISDN
BRI lines and the installation of ISDN BRI application modules in the Remote
Gateway 9150 unit. All calls not routed through the host PBX, whether ISDN or
POTS, are referred to as locally controlled calls.
To implement Voice over IP mode in host-controlled mode:
1 Determine how many simultaneous calls you want to process. This helps
you determine how many DSP application modules to install on the Remote
Gateway 9150 unit. To do this, complete the “Remote Gateway 9150
System expansion worksheet” on page 385.
Similarly, you must calculate how many DSP application modules to install
on the RLC (if any), using the “Reach Line Card System expansion
worksheet” in the
Reach Line Card Installation and Administration Guide
(NTP 555-8421-210).