Source note · Troubleshooting Amazon Connect softphone and CCP audio
CCP softphone media requires outbound UDP 3478 send/receive to TurnNlb-*.elb.<region>.amazonaws.com for the instance's Region (or the listed per-Region NLB hostnames).
Checked 2026-10-02
- Vendor
- Amazon Web Services
- Product
- Amazon Connect
- Subsystem
- Contact Control Panel softphone media
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Set up your network to use the Connect Customer Contact Control Panel (CCP) — Amazon Web Services · tier 2 current vendor documentation · Section 'Option 1 (recommended)', allowlist table row TurnNlb-*.elb.{region}.amazonaws.com; subsection 'NLB endpoints'
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Amazon Connect softphone and CCP audio: source note amazon-connect-ccp-audio-troubleshooting-udp-3478-turn. WarmTransfer. https://warmtransfer.net/knowledge/claims/amazon-connect-ccp-audio-troubleshooting-udp-3478-turn
BibTeX
@misc{warmtransfer-claim-amazon-connect-ccp-audio-troubleshooting-udp-3478-turn,
title = {Troubleshooting Amazon Connect softphone and CCP audio: source note amazon-connect-ccp-audio-troubleshooting-udp-3478-turn},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/amazon-connect-ccp-audio-troubleshooting-udp-3478-turn},
note = {Source note amazon-connect-ccp-audio-troubleshooting-udp-3478-turn, checked 2026-10-02}
}