Five9 tells customers not to use TCP/UDP ports 8080, 9998, 11000 or 30059 for any third-party services or applications on agent desktop computers.
Checked 2026-10-02
Customers must avoid using the following TCP/UDP ports for any third-party services or applications running on agent desktop computers: 8080, 9998, 11000, 30059
- Vendor
- Five9
- Product
- Five9 Virtual Contact Center
- Subsystem
- network ports
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Checked
- 2026-10-02
Sources
- Other VoIP Services and Phones, Ports, IP Address Ranges, and Network Traffic — Five9 · tier 2 current vendor documentation · Other VoIP Services and Phones...; reserved ports paragraph
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Five9 softphone and station connection problems: source note five9-softphone-troubleshooting-reserved-ports-avoid. WarmTransfer. https://warmtransfer.net/knowledge/claims/five9-softphone-troubleshooting-reserved-ports-avoid
BibTeX
@misc{warmtransfer-claim-five9-softphone-troubleshooting-reserved-ports-avoid,
title = {Troubleshooting Five9 softphone and station connection problems: source note five9-softphone-troubleshooting-reserved-ports-avoid},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/five9-softphone-troubleshooting-reserved-ports-avoid},
note = {Source note five9-softphone-troubleshooting-reserved-ports-avoid, checked 2026-10-02}
}