Source note · Codec selection and bandwidth planning
Cisco lists G.729 (8 kbps) at 20 ms packetization (20-byte payload, 50 packets per second) as 31.2 kbps per call direction on Ethernet.
Checked 2026-09-24
- Vendor
- Cisco
- Product
- Cisco IOS voice
- Subsystem
- bandwidth calculation
- Deployment
- on-premises
- Region
- not restricted
- Release range
- current as of 2026-09-24
- Checked
- 2026-09-24
Sources
- Modify Bandwidth Consumption Calculation for Voice Calls — Cisco · tier 2 current vendor documentation · Table under 'Voice Codec Bandwidth Calculations', row G.729 (8 Kbps), column Bandwidth Ethernet
Cite this note
APA
WarmTransfer. (2026, September 24). Codec selection and bandwidth planning: source note bandwidth-codec-planning-cisco-g729-ethernet-bw. WarmTransfer. https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-cisco-g729-ethernet-bw
BibTeX
@misc{warmtransfer-claim-bandwidth-codec-planning-cisco-g729-ethernet-bw,
title = {Codec selection and bandwidth planning: source note bandwidth-codec-planning-cisco-g729-ethernet-bw},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/bandwidth-codec-planning-cisco-g729-ethernet-bw},
note = {Source note bandwidth-codec-planning-cisco-g729-ethernet-bw, checked 2026-09-24}
}