Cisco Cisco MGX 8880 Media Gateway Notas de publicación

The VXSM Release 5.6.20 follows VXSM Release 5.6.10. The resolved caveats for VXSM Release 
5.6.20 are listed in 

.

The Voice Switch Service Module (VXSM) product is supported by the MGX 8880 Media Gateway and 
the MGX 8850 Multiservice Switch. Refer to their respective release notes for platform and version level 
support guidelines.

To verify that you have the latest version of Cisco IOS required to support the new features included in 
this release, please check Cisco IOS availability status at 

.

The VXSM software release notes are supported by Cisco Voice Switch Services (VXSM) Configuration 
Guide, Release 5.6.10 and Cisco Voice Switch Services (VXSM) Command Reference, Release 5.6.10, 
both of which are available on cisco.com.

None.

For each VXSM card type (OC-3/STM-1, T1/E1, or T3), two firmware images are available, namely, 
Non-CALEA and CALEA. When placing an order, the user must specify whether a Non-CALEA or 
CALEA image is required.

Both CALEA and Non-CALEA images supports three Media Gateway Control protocols, namely, 
H.248, MGCP, and TGCP. However, VXSM supports only one protocol at a time. The user must choose 
between the H.248, MGCP, and TGCP protocols when the image is first loaded from the PXM using the 
setrev command.

The CALEA image supports LI based on SII architecture for H.248, TGCP and MGCP protocols. The 
PktCable CALEA is supported only with MGCP and TGCP protocols.

VXSM supports four different Codec templates; Tandem Gateway (TGW), Tandem Gateway 2, Fixed 
Mobile Convergence (FMC), and Cable. The Cable template can be used only in conjunction with TGCP.

VXSM can be gracefully upgraded (configuration is preserved) from VXSM Release 5.5.11 or later. 

VXSM supports upgrade of non-CALEA to CALEA firmware. But upgrade from CALEA to 
non-CALEA is not supported.