Source note · Choppy and robotic audio on calls
RFC 4594 (Informational) says the Telephony service class SHOULD use the Expedited Forwarding PHB, and it characterizes telephony as having very low tolerance to loss, delay and jitter.
Checked 2026-09-25
The Telephony service class SHOULD use Expedited Forwarding (EF) PHB, as defined in RFC3246
- Vendor
- IETF
- Product
- DiffServ
- Subsystem
- service classes
- Deployment
- any
- Region
- not restricted
- Release range
- RFC 4594
- Checked
- 2026-09-25
Sources
- RFC 4594: Configuration Guidelines for DiffServ Service Classes — IETF / RFC Editor · tier 1 standards and regulators · Section 4.1 'Telephony'; Figure 2 (service class characteristics)
Cite this note
APA
WarmTransfer. (2026, September 25). Choppy and robotic audio on calls: source note choppy-audio-troubleshooting-rfc4594-telephony-ef. WarmTransfer. https://warmtransfer.net/knowledge/claims/choppy-audio-troubleshooting-rfc4594-telephony-ef
BibTeX
@misc{warmtransfer-claim-choppy-audio-troubleshooting-rfc4594-telephony-ef,
title = {Choppy and robotic audio on calls: source note choppy-audio-troubleshooting-rfc4594-telephony-ef},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/choppy-audio-troubleshooting-rfc4594-telephony-ef},
note = {Source note choppy-audio-troubleshooting-rfc4594-telephony-ef, checked 2026-09-25}
}