Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - Introduction to Codecs

Publisher

Cisco Systems

URL

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube/ios-xe/config/ios-xe-book/m_cube-codec-basic.html

Published

2026-04-25

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Cisco documentation terms; no-redistribution; short excerpts and locators only

Source notes citing this source

• With voice-class codec transparent, CUBE passes only the offer unfiltered; it still filters SDP in the answer, and Cisco describes only the first codec of the offer list being included in the outbound message. in context
• Cisco points to pass-thru content sdp as the option when CUBE should not take part in codec negotiation at all. in context
• CUBE does not support calls between a VAD-enabled leg and a no-VAD leg. in context

Cite this source record

APA

WarmTransfer. (2026, April 25). Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - Introduction to Codecs. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cube-intro-codecs

BibTeX

@misc{warmtransfer-cisco-cube-intro-codecs,
  title  = {Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - Introduction to Codecs},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cube-intro-codecs},
  note   = {Cisco Systems, accessed 2026-09-25}
}