Cisco Cisco MGX 8880 Media Gateway

Cisco

Americas Headquarters:

© 2012 Cisco Systems, Inc. All rights reserved.

Cisco Systems, Inc., 170 West Tasman Drive, San Jose, CA 95134-1706 USA

Release Notes for Cisco Voice Switch Service
Module (VXSM) Release 5.6.21

Revised: June 12, 2012, OL-23364-05

Contents

About This Release, page 2

Enhancements in Release 5.6.21, page 2

Firmware Images, page 3

Upgrading from an Earlier VXSM Release, page 3

Interrupted Procedure Recovery, page 4

Feature Clarifications, page 5

Call Rate Performance Support, page 5

Online Diagnostics Feature as Applied to VXSM, page 5

DSP Resources Under Mixed Codec Conditions, page 6

VXSM Management Information Base, page 6

Service Module Support by Platform, page 7

Compatibility, page 7

Caveats for VXSM Release 5.6.21, page 9

Related Documentation, page 9

Obtaining Documentation, Obtaining Support, and Security Guidelines, page 10