Cisco Cisco MGX 8880 Media Gateway Release Notes
5
Release Notes for Cisco Voice Switch Service Module (VXSM) Release 5.6.00
OL-23364-02
Firmware Images
NSE Negotiation Based VXSM Up-speed
From Release 5.6.00, in gateway controlled mode, VXSM upspeeds upon detecting the modem tones
only when the NSE negotiation is successful in the Call Signaling. You can enable this feature by using
the cnfNseNegoUpspeed command. This command is supported in both the xGCP and H.248 protocols.
only when the NSE negotiation is successful in the Call Signaling. You can enable this feature by using
the cnfNseNegoUpspeed command. This command is supported in both the xGCP and H.248 protocols.
Firmware Images
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.
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.
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.
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.
Mobile Convergence (FMC), and Cable. The Cable template can be used only in conjunction with
TGCP.
Upgrading from an Earlier VXSM Release
VXSM can be gracefully upgraded (configuration is preserved) from VXSM Release 5.4.21 or later.
Note
VXSM supports upgrade of non-CALEA to CALEA firmware. But upgrade from CALEA to
non-CALEA is not supported.
non-CALEA is not supported.
When loading or upgrading a boot or runtime image to a VXSM card, users must observe the following
caution:
caution:
Caution
If an H.248 association is active with SrvChgProfile (used in service change message) as BT_TGW in
5.3.x.x release, after graceful upgrade to 5.6.00, the association will continue to use BT_TGW, but new
association(s) cannot be added with SrvChgProfile as BT_TGW.
5.3.x.x release, after graceful upgrade to 5.6.00, the association will continue to use BT_TGW, but new
association(s) cannot be added with SrvChgProfile as BT_TGW.
From the 5.4.00 release onward, the BT_TGW SrvChgProfile is no longer available. All new
associations must be added using either etsi_tgw or CISCO_TGW.
associations must be added using either etsi_tgw or CISCO_TGW.
Prior to upgrade, user should confirm that additional termtypes (other than the defaults) have not been
configured for VXSM in H.248.
configured for VXSM in H.248.