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3300 ICP Hardware User Guide
180 Release 3.3
Note that there are two T1/E1 links per NSU.
To add voice mail ports to a 250 user system (Release 3.0/3.1 chassis):
1. Remove the cover.
2. Install the additional DSP Module (Slot 7).
3. Replace the cover.
250 User System - Add 32 Compression Channels
250 user system (Release 3.0/3.1 chassis) upgrade to add support for 32 compression
channels.
This system uses the following existing modules:
• One 300 MHz RTC
• One 300 MHz E2T
• One 64 Channel Echo Canceller
• One Dual FIM
• One DSP Module (21061/21161) for telecom support
Add the following module:
• One DSP Module (21161) for 32 compression channels
Note: You must purchase compression licenses. Refer to E2T Compression for
guidelines on meeting your compression requirements.