Specifications

1-13
Catalyst 4224 Access Gateway Switch Software Configuration Guide
OL-2031-02
Chapter 1 Product Overview
Application Notes
• The two-Port FXS and FXO VIC uses two of the available four DSO
channels. The DSP is used when the VIC is plugged in, even if the ports are
not configured.
• The eight-Port FXS Module uses eight DS0 channels or two DSPs, even if it
is not used (unless it is disabled using the CLI).
The following sample configuration shows DSP allocations:
C4224# sh voice dsp
BOOT
TYPE DSP CH CODEC VERS STATE STATE RST AI PORT TS
==== === == ======== ==== ===== ======= === == ======= ==
5409 001 00 {anlgHC} .8 IDLE idle 0 0 3/0 0
01 {anlgHC} .8 IDLE idle 0 0 3/1 0
5409 002 00 {anlgMC} .3 IDLE idle 0 0 4/0 0
01 {anlgMC} .3 IDLE idle 0 0 4/1 0
02 {anlgMC} .3 IDLE idle 0 0 4/2 0
03 {anlgMC} .3 IDLE idle 0 0 4/3 0
5409 003 04 {anlgMC} .3 IDLE idle 0 0 4/4 0
05 {anlgMC} .3 IDLE idle 0 0 4/5 0
06 {anlgMC} .3 IDLE idle 0 0 4/6 0
07 {anlgMC} .3 IDLE idle 0 0 4/7 0
5409 004 00 {medium} 3.5 IDLE idle 0 0 2/0:1 1
01 {medium} .8 IDLE idle 0 0 2/0:1 2
02 {medium} IDLE idle 0 0 2/0:1 3
03 {medium} IDLE idle 0 0 2/0:1 4
5409 005 00 {medium} 3.5 IDLE idle 0 0 2/0:1 5
01 {medium} .8 IDLE idle 0 0 2/0:1 6
02 {medium} IDLE idle 0 0 2/0:1 7
03 {medium} IDLE idle 0 0 2/0:1 8
5409 006 00 {medium} 3.5 IDLE idle 0 0 2/0:1 9
01 {medium} .8 IDLE idle 0 0 2/0:1 10
02 {medium} IDLE idle 0 0 2/0:1 11
03 {medium} IDLE idle 0 0 2/0:1 12
In the sample configuration, port 3/0 is an analog VIC that uses two of the four
channels in DSP 1. Slot 4 contains the eight-port FXS Module. This module takes
up two DSPs. DSP four, five, and six are being used for the 12 voice channels on
a MFT VWIC.
DSP resources are used for signaling and voice bearer channels. The signaling
channel is used for detecting off-hook/on-hook transitions.