Cisco Virtual Voice Browser (VVB) has the following new security capabilities:

• SIP over TLS for securing call control over the IVR and agent call segments.

• SRTP media support over Cisco VVB to secure the IVR voice media stream.

Note

Customers in countries that have local government regulations about using software that allows SRTP voice communication, can alternately use the export unrestricted image of Cisco VVB that does not support SRTP. See the CCBU Ordering Guide for more details on ordering options available for the Cisco VVB software.

Cisco VVB can now be installed on the Kernel-based Virtual Machine (KVM) that is available natively on the Cisco Integrated Service Routers 4000 Series. This allows a small-to-medium-sized edge deployment to use the VVB natively on the router hardware by removing the need to host an add-on UCS E module.

Cisco VVB now supports the Type 2, 3, 7, and 8 VRU non-reference call flow models.

Cisco VVB OVA hard disk size is reduced from 2x146 GB to 1x146 GB. Upgrade from 11.5.1 to 11.6.1 is supported for profiles having 1x146 GB disk size OVA.

You can now change the hostname or IP address of Cisco VVB post installation. This feature allows you to clone Cisco VVB instead of installing it afresh for each new deployment.

This release introduces a new CLI command to configure the HTTP timeout. This configuration allows Cisco VVB to wait for a user-specified time interval to receive a response from the HTTP server.

This feature uses the fetchaudio attribute for enhancing user experience when there may be noticeable delays during the next document retrieval. This feature can be used to play background music or a series of announcements while the document is being retrieved.

With this release, Cisco VVB has been scaled up to support a maximum of 20 calls per second.