Port Reference Information for Webex Calling

Publisher

Cisco

URL

https://help.webex.com/en-us/article/b2exve

Published

2026-09-08

Updated

unknown

Accessed

2026-09-30

HTTP status

200

License

Cisco website terms of use; no-redistribution; short excerpts and locators only

Source notes citing this source

• Call media to Webex Calling is SRTP over UDP to destination port ranges that include 8500 to 8699 and 19560 to 65535. in context
• Devices send SIP-TLS call signalling to the Webex Calling service subnets on TCP destination port 8934. in context
• Cisco recommends turning off SIP Application Layer Gateway or similar SIP-aware functionality on routers and firewalls in the path to Webex Calling. in context
• Local Gateway SRTP media uses UDP source ports 8000-48199 outbound to Webex Calling destination ports including 5004, 9000, 8500-8699 and 19560-65535, and inbound UDP 19560-65535. in context
• The Local Gateway opens outbound SIP TLS over TCP to Webex Calling on port 8934 for a registration-based trunk or 5062 for a certificate-based trunk, and a certificate-based gateway must also accept inbound TCP 8934 from Webex Calling. in context
• Cisco recommends turning off SIP ALG on firewalls in the Webex Calling path because some implementations break firewall traversal. in context

Cite this source record

APA

WarmTransfer. (2026, September 8). Port Reference Information for Webex Calling. WarmTransfer. https://warmtransfer.net/knowledge/sources/cisco-help-b2exve-port-reference-c

BibTeX

@misc{warmtransfer-cisco-help-b2exve-port-reference-c,
  title  = {Port Reference Information for Webex Calling},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/cisco-help-b2exve-port-reference-c},
  note   = {Cisco, accessed 2026-09-30}
}