Nortel RLC, Installation And Administration Manual

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74 RLC Installation and Administration Guide
Planning for RLC installation Standard 4.0
6 For each remote unit, obtain the information for each PSTN line from the
remote unit’s telephone service provider. Configure this information on the
remote unit to establish the trunk interface with the PSTN.
Note: For Remote Gateway 9150 units, remember to get this information
for each ISDN BRI line.
7 Identify the telephone number assigned to the remote unit. Configure this
telephone number on the RLC—the RLC uses it to establish connections
with the remote site.
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. Local PSTN calls made at Remote Gateway 9110 and
Remote Gateway 9115 sites use analog, POTS lines. All calls not routed through
the host PBX, whether ISDN or POTS, are referred to as
locally controlled calls.
To implement VoIP mode for host-controlled calls:
1 Determine how many simultaneous calls you want to process. This helps
you to determine how many DSP application modules to install on the RLC.
To do this, complete the RLC System expansion worksheet on page 345.
2 Install DSP application modules on the RLC, if needed.
3 Obtain the IP address assigned to the remote unit. Configure this IP
address on the RLC—the RLC uses it to establish connections with the
remote unit.
4 Obtain the IP address assigned to the RLC. Configure this IP address on
the remote unit—the remote unit uses it to establish connections with the
RLC.