Because the Five9 PSTN-customer port table lists only web, Java RMI, download and test ports and no SIP or RTP range, the agent's voice path on a PSTN station does not depend on workstation VoIP firewall rules.
inferred · Checked 2026-10-02
- Vendor
- Five9
- Product
- Five9 Virtual Contact Center
- Subsystem
- network ports
- Deployment
- multi-tenant
- Region
- not restricted
- Release range
- current as of 2026-10-02
- Status
- inferred
- Checked
- 2026-10-02
Sources
- TCP/UDP Port Requirements for PSTN Customers — Five9 · tier 2 current vendor documentation · TCP/UDP Port Requirements for PSTN Customers; full table
Cite this note
APA
WarmTransfer. (2026, October 2). Troubleshooting Five9 softphone and station connection problems: source note five9-softphone-troubleshooting-pstn-no-voice-ports. WarmTransfer. https://warmtransfer.net/knowledge/claims/five9-softphone-troubleshooting-pstn-no-voice-ports
BibTeX
@misc{warmtransfer-claim-five9-softphone-troubleshooting-pstn-no-voice-ports,
title = {Troubleshooting Five9 softphone and station connection problems: source note five9-softphone-troubleshooting-pstn-no-voice-ports},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/five9-softphone-troubleshooting-pstn-no-voice-ports},
note = {Source note five9-softphone-troubleshooting-pstn-no-voice-ports, checked 2026-10-02}
}