CUCME Common Network Ports

Lots of minutia to recall, here are some quick facts you simply gotta know!

Most commonly used ports for Voice on CME:

SCCP
TCP 2000 :  Call control for SCCP phones

SIP
TCP 5060 :  Call control for SIP endpoints

RTP
UDP 16384-32767 : Media from Cisco Unified CME to H.323/SIP endpoint, including Cisco Unity Express

RTP
UDP 2000 : Media from Cisco Unified CME to SCCP phone

H.225
TCP 1720 : H.323 Call Setup

H.245
TCP 11000-65535 : H.323 Call control, port assignment random

H.323 RAS
UDP 1718 : GK Discovery

H.323 RAS
UDP 1719 : GK Call Control

H.323 RAS
UDP 223.0.1.4 : GK Multicast discovery

TLS
TCP 3804 : CAPF Authentication Request

TLS
TCP 2443 : Secure Call control for SCCP phones
 
Most commonly used ports for Data on CME:

DHCP
UDP 67 : IP addressing for IP phones

HTTP
TCP 80 : Cisco Unified CME GUI access, IP phone local directory access

HTTPS/SSL
TCP 443 : Secure Cisco Unified CME GUI access

NTP
UDP 123 : Time sync for Cisco Unity Express, IP Phones

Radius
UDP 1645 : Authentication for Cisco Unified CME CLI/GUI users

Radius
UDP 1646 : CDR accounting

SNMP
UDP 161 : Traps for Cisco Unified CME monitoring

SSH
TCP 22 : Secure Cisco Unified CME CLI access

Syslog
UDP 514 : System monitoring, CDR accounting

Telnet
TCP 23 : Cisco Unified CME CLI access