Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - Codec Preference Lists

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_voi-negt-aud-code.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

• By default CUBE filters codecs to the common subset and sends only the filtered codecs in its outgoing offer; the voice-class codec offer-all option sends every codec in the configured voice class instead. in context
• CUBE follows the codec preference order of the incoming INVITE's SDP rather than the voice class codec preference on the outgoing dial-peer. in context
• CUBE does not support codec re-packetization when codec preference lists are configured, and does not support video codecs or multiple audio streams in preference lists. in context
• Calls on CUBE that require a transcoder are not checkpointed for high availability. in context

Cite this source record

APA

WarmTransfer. (2026, April 25). Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - Codec Preference Lists. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-cube-codec-preference-lists

BibTeX

@misc{warmtransfer-cisco-cube-codec-preference-lists,
  title  = {Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards - Codec Preference Lists},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-cube-codec-preference-lists},
  note   = {Cisco Systems, accessed 2026-09-25}
}