Source note · Codec selection and bandwidth planning
Webex Calling's 70-80 kbps per-stream figure probably reflects G.711 at 20 ms counted at the IP layer without Layer 2 overhead, which is 80 kbps by Cisco's header sizes. Planning at 100 kbps then leaves headroom for Layer 2, SRTP and tunnel overhead.
inferred · Checked 2026-09-24
- Vendor
- Cisco
- Product
- Webex Calling
- Subsystem
- bandwidth planning
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Status
- inferred
- Checked
- 2026-09-24
Sources
- Audio specifications for Webex Calling — Cisco Webex · tier 2 current vendor documentation · Bandwidth section, read against cisco-techdoc-7934-voice-bandwidth header sizes
Cite this note
APA
WarmTransfer. (2026, September 24). Codec selection and bandwidth planning: source note bandwidth-codec-planning-wxc-70-80-matches-ip-layer. WarmTransfer. https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-wxc-70-80-matches-ip-layer
BibTeX
@misc{warmtransfer-claim-bandwidth-codec-planning-wxc-70-80-matches-ip-layer,
title = {Codec selection and bandwidth planning: source note bandwidth-codec-planning-wxc-70-80-matches-ip-layer},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-wxc-70-80-matches-ip-layer},
note = {Source note bandwidth-codec-planning-wxc-70-80-matches-ip-layer, checked 2026-09-24}
}