Source note · Analysing a SIP call in Wireshark
On a CUBE hairpin call to such an ITSP neither party sends media until it receives some, so the call has no audio in either direction and 'show call active voice brief' shows 0/0 Rx/Tx on all legs.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco Unified Border Element
- Subsystem
- media
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Troubleshoot No-way Audio Issue with Hairpin Calls on CUBE — Cisco Systems, Inc. (www.cisco.com) · tier 2 current vendor documentation · Troubleshoot No-way Audio Issue with Hairpin Calls on CUBE > Problem and Troubleshoot
Cite this note
APA
WarmTransfer. (2026, September 24). Analysing a SIP call in Wireshark: source note sip-call-analysis-wireshark-cube-hairpin-no-audio. WarmTransfer. https://warmtransfer.net/knowledge/claims/sip-call-analysis-wireshark-cube-hairpin-no-audio
BibTeX
@misc{warmtransfer-claim-sip-call-analysis-wireshark-cube-hairpin-no-audio,
title = {Analysing a SIP call in Wireshark: source note sip-call-analysis-wireshark-cube-hairpin-no-audio},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/sip-call-analysis-wireshark-cube-hairpin-no-audio},
note = {Source note sip-call-analysis-wireshark-cube-hairpin-no-audio, checked 2026-09-24}
}