How to Set Up Your Network for Webex Calling
Overview
This article explains how to setup your Network for Webex Calling.
Steps:
# ==============================
# WEBEX CALLING – ZERO TRUST ALLOW LIST
# ==============================
# --- Webex Core Services ---
*.webex.com
*.wbx2.com
*.ciscospark.com
*.webexcontent.com
*.clouddrive.com
*.cisco.com
# --- Webex Calling (SIP / Registration) ---
*.call.webex.com
*.webexcalling.com
*.broadcloudpbx.com
# --- Device Activation / Provisioning ---
activate.webex.com
idbroker.webex.com
*.devices.webex.com
# --- Firmware / CDN Delivery ---
*.cloudfront.net
*.akamaiedge.net
*.edgesuite.net
# --- Microsoft / Azure AD (Entra ID) ---
login.microsoftonline.com
login.windows.net
sts.windows.net
account.activedirectory.windowsazure.com
aadcdn.msftauth.net
aadcdn.msauth.net
*.msauth.net
*.msftauth.net
graph.microsoft.com
# --- NTP ---
*.pool.ntp.org
time.windows.com
# ==============================
# REQUIRED OUTBOUND PORTS
# ==============================
TCP 443
TCP 5061
UDP 3478
UDP 5004
UDP 9000
UDP 19560-65535
UDP 123
TCP/UDP 53
# ==============================
# SSL INSPECTION BYPASS REQUIRED
# ==============================
*.webex.com
*.wbx2.com
*.webexcalling.com
*.broadcloudpbx.com
idbroker.webex.com