Cisco Cisco IOS Software Release 12.4(4)T

For feature support in Cisco IOS Release 12.4T, see the 

.

This section contains important information about using the Cisco Catalyst 6500/Cisco 7600 
Communication Media Module with Cisco IOS Release 12.4T software.

The CMM wscmm-i6s-mz.123-14.T image contains a new bundle 4.4.X DSPware infrastructure. Once 
downloaded, this software will perform an automatic FPGA upgrade to version 10 (hex 0xA) in order to 
take advantage of the new bundle 4.4.X DSPware infrastructure.

After the upgrade, power-cycling the CMM is required. If you have an ACT module on the CMM, you 
must reconfigure the ACT module with the new Fast Ethernet interface instead of Ethernet. Any other 
CMM release before the wscmm-i6s-mz.123-14.T image will require an automatic bundle FPGA 
upgrade to version 10 (hex 0xA). 

The ACT module supports the following features.

For detailed installation and configuration procedures, see the 

 at the following URL:

For detailed information on automatically upgrading and downgrading feature cards FPGA, see the 
Release Notes for the Cisco Catalyst 6500 Series and the Cisco 7600 Series Communication Media 
Module for Cisco IOS Release 12.3(8)XY at the following URL:

Maximum channels for conference

128

Maximum channels for transcoding

128

Maximum channels for MTP

512

1

1.

Requires two channels per session.

Maximum port adapters for CMM

4

Maximum capacity for CMM

512 conference or transcode, 2048 MTP 
channels

2

2.

With MTP-only mode at G.711.

Largest conference size

64 parties

Voice codecs

G.711 mu-law and a-law, G.729, G.723

Packetization

10, 20, 30, 60 ms

Protocols

SCCP with Cisco CallManager

Maximum number of conferences

64

3

3.

With two-party MeetMe conference with Cisco CallManager (typical ad-hoc conference has three parties).