Cisco Cisco MGX 8880 Media Gateway
4
Release Notes for Cisco Voice Switch Service Module (VXSM) Release 5.0.20
Part Number OL-5643-01 Rev. B0, March 25, 2005
Firmware Images
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Detection of the following tones, CNG(1100hz), CED/ANS(2100hz), /ANS(2100hz with phase
reversal, and V.21 Fax Preamble.
reversal, and V.21 Fax Preamble.
The voiceband event mapping feature permits VXSM to determine how VBD events are to be handled.
When this feature is configured, VBD events are mapped to different event handling functions
categorized by the attributes defined in different kinds of profiles, such as fax relay profile, or VBD
profile.
When this feature is configured, VBD events are mapped to different event handling functions
categorized by the attributes defined in different kinds of profiles, such as fax relay profile, or VBD
profile.
Firmware Images
For each VXSM card type (OC-3 or T1/E1), two firmware images are available, namely, Non-CALEA
and CALEA. At order time, the user must specify whether a Non-CALEA or CALEA image is required.
and CALEA. At order time, the user must specify whether a Non-CALEA or CALEA image is required.
The Non-CALEA image is available in two versions. One version supports the H.248 media gateway
controller protocol and the other supports the TGCP medil gateway controller protocol. The user must
choose between the H.248 and TGCP versions when the image is first loaded from the PXM using the
setrev command.
controller protocol and the other supports the TGCP medil gateway controller protocol. The user must
choose between the H.248 and TGCP versions when the image is first loaded from the PXM using the
setrev command.
The CALEA image supports TGCP only. However, this protocol must be explicitly selected when the
card is first loaded using the setrev command.
card is first loaded using the setrev command.
Upgrading from an Earlier VXSM Release
VXSM can be gracefully upgraded (configuration is preserved) so long as the original and the upgraded
images are of the same version. Because CALEA and TGCP are being introduced in this release and
therefore do not exist in earlier releases, the only upgrade support to 5.0.20 is from the Non-CALEA,
H.248 version to the Non-CALEA, H.248 version.
images are of the same version. Because CALEA and TGCP are being introduced in this release and
therefore do not exist in earlier releases, the only upgrade support to 5.0.20 is from the Non-CALEA,
H.248 version to the Non-CALEA, H.248 version.
When loading or upgrading a boot or runtime image to a VXSM card, users must observe the following
caution.
caution.
Caution
Many of the commands involved in loading or upgrading boot and runtime images can take several
minutes to execute completely. If the user resets or otherwise disturbs the VXSM card during a loading
or upgrading process, the card can easily be damaged to the extent that it must be returned to the factory
for repair.
minutes to execute completely. If the user resets or otherwise disturbs the VXSM card during a loading
or upgrading process, the card can easily be damaged to the extent that it must be returned to the factory
for repair.
THE REAPPEARANCE OF THE COMMAND PROMPT AFTER A COMMAND IS ENTERED DOES
NOT INDICATE THAT THE IMAGE LOAD OR UPGRADE HAS BEEN COMPLETED.
NOT INDICATE THAT THE IMAGE LOAD OR UPGRADE HAS BEEN COMPLETED.
Afte the execution of the burnboot, clrsmcnf, loadrev, or setrev commands, the user must execute either
a dspcds or dsprev command periodically to vefify that the state of the VXSM card being loaded or
upgraded is either Active, Standby, or Failed.
a dspcds or dsprev command periodically to vefify that the state of the VXSM card being loaded or
upgraded is either Active, Standby, or Failed.
ONLY WHEN THE CARD IS DISPLAYED TO BE IN ONE OF THESE STATES IS IT SAFE TO GO
TO THE NEXT STEP.
TO THE NEXT STEP.