Nortel Remote Gateway 9150 Installation And Administration Manual page 37

June 2005
Optional DSP application modules
DSPs convert voice and fax into digital data for transport over the IP network
and PSTN. Initially, the Remote Gateway 9150 unit ships with the ability to
support up to eight simultaneous calls through a DSP that is built into the
Remote Gateway 9150 unit's motherboard. To add support for up to 32
simultaneous calls, you must install DSP application modules. Up to three DSP
application modules are supported. Each module provides up to eight more
simultaneous calls.
Note: To determine how many DSP application modules you need for your
calling requirements, use the "Remote Gateway 9150 System expansion
worksheet" on page 385.
In addition, you can configure the Remote Gateway 9150 unit for blocking with
only enough modules to support the maximum number of simultaneous calls.
For example, a Remote Gateway 9150 unit that is equipped with a single DSP
application module supports 16 simultaneous calls, for a ratio of 2 to 1 blocking.
Refer to the following illustration for an example of a DSP application module:
DSP application module (NTDR73xx)
Note: For more details, refer to "Planning for future growth" on page 72.
Remote Gateway 9150 Installation and Administration Guide
Remote Gateway 9150 description
G101388
9