Configure the Firewall

Configure Firewall for Direct Routing

NAT 1:1

Only if required

Firewall Rules - SIP Proxy


Traffic From To Source Port Destination Port
SIP/TLS 52.114.148.0, 52.114.132.46, 52.114.75.24, 52.114.76.76, 52.114.7.24, 52.114.14.70 203.0.113.0.133 1024 – 65535 5067
SIP/TLS 203.0.113.0.133 52.114.148.0, 52.114.132.46, 52.114.75.24, 52.114.76.76, 52.114.7.24, 52.114.14.70 5067 5061

Firewall Rules - Media Processor




Traffic From To Source Port Destination Port
UDP/SRTP 52.112.0.0/14 203.0.113.0.133 49152 – 53247 7000-7049
UDP/SRTP 203.0.113.0.133 52.112.0.0/14 7000-7049 49152 – 53247

Firewall Rules - Media Bypass Requirements


Currently not documented please check docs.microsoft.com

Firewall Rules - Teams Client Requirements


Currently not documented please check docs.microsoft.com