Cisco Unified Communications Manager (CallManager)

TCP and UDP Ports Used by Cisco CallManager 3.3

Document ID: 43881

Updated: Mar 05, 2008



This document provides a list of most of the TCP and UDP ports that a Cisco CallManager 3.3 environment utilizes. This document provides important information for when you configure both Quality of Service (QoS) and Firewall/VPN solutions on a network when there is an Architecture for Voice, Video and Integrated Data (AVVID) solution implemented.

Note: Refer to Cisco CallManager 4.1 TCP and UDP Port Usage for a list of ports that Cisco CallManager 4.1 uses.



There are no specific prerequisites for this document.

Components Used

The information in this document is based on these software and hardware versions:

  • Cisco CallManager 3.3(x)

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, make sure that you understand the potential impact of any command.


Refer to the Cisco Technical Tips Conventions for more information on document conventions.

TCP/UDP Ports Used in a Cisco CallManager Environment

This table shows the TCP/UDP ports used in a Cisco CallManager environment.

Protocol Remote Source Port CallManager Destination Port CallManager Source Port Remote Device Destination Port Remote Devices Notes
DTC     TCP 135   CallManagers in the same cluster  
SSH   TCP 22     Secure Shell Client  
Telnet   TCP 23     Telnet Client  
DNS   UDP 53     DNS Servers  
DHCP UDP 68 UDP 67     DHCP Server  
DHCP     UDP 68 UDP 67 DHCP Client  
TFTP   UDP 69       Dynamic Ports used after initial connect
HTTP   TCP 80     Administrator / User Web browsers CCMAdmin and CCMUser pages
OSI (DAP, DSP, DISP)   TCP or UDP 120     DCD Directory  
NTP   UDP 123        
WINS   UDP 137-139     WINS Server Windows Internet Name Service
SNMP   UDP 161        
SNMP Trap       UDP 162    
LDAP   TCP 389   TCP 389 Directory Services When integrated with Corporate Directory
HTTPS / SSL   TCP 443        
SMB   TCP 445   TCP 445 CallManagers in the same cluster  
Syslog   TCP 514   UDP 514 Syslog service  
RMI   TCP 1099-1129     RMI Service. Attendant Console  
MS SQL   TCP 1433   TCP 1433 CallManagers in the same cluster  
H.323 RAS       UDP 1718 Gatekeeper discovery  
H.323 RAS       UDP 1719 Gatekeeper RAS CallManager prior to 3.3. Cisco Conference Connection
H.323 RAS     UDP 1024-4999 UDP 1719 Gatekeeper RAS CallManager 3.3
H.323 H.225   TCP 1720   TCP 1720 H.323 Gateways / Anonymous Device Cisco Conference Connection / Non- Gatekeeper Controlled H.323 Trunk  
H.323 H.225/ICT   TCP 1024-4999     CallManager Gatekeeper Controlled H.323 Trunks CallManager 3.3
H.323 H.245   TCP 1024-4999 TCP 1024-4999   CallManager H.323 Gateways / Anonymous Device / H.323 Trunks  
H.323 H.245   TCP 11000-65535     IOS H.323 Gateways. Cisco Conference Connection  
SCCP   TCP 2000     Skinny Clients (IP Phones)  
Skinny Gateway (Analogue)   TCP 2001     Analogue Skinny Gateway Obsolete
Skinny Gateway (Digital)   TCP 2002     Digital Skinny Gateway Obsolete
MGCP Control   UDP 2427     MGCP Gateway Control  
MGCP Backhaul   TCP 2428     MGCP Gateways Backhaul  
RTS Serv     2500      
Cisco Extended Service   TCP 2551     Active / Backup Determination  
Cisco Extended Service   TCP 2552     DB Change Notification  
RIS Data Collector   TCP 2555     Inter RIS communication  
RIS Data Collector   TCP 2556     Used by clients (IIS) to communicate with RIS  
CTI/QBE   TCP 2748     TAPI/JTAPI Applications Connects with CTI Manager. Used by IVR, CCC, PA, Cisco Softphone, CRS, ICD, IPCC, IPMA, Attendant Console and any other application that utilizes the TAPI or J/TAPI plugin / TSP.
IPMA Service   TCP 2912     IPMA Assistant Console  
Media Streaming Application   UDP 3001     Change Notification  
SCCP   TCP 3224     Media Resources Conference Bridges / Xcoders
MS Terminal Services   TCP 3389     Windows Terminal Services  
Entercept HID Agent       TCP 5000 Host Intrusion Detection Console  
CallManager SIP   TCP/UDP 5060   TCP 5060 SIP Trunk Default Port Can use TCP 1024 - 65535
VNC http helper   TCP 580x       Remote Control
VNC Display   TCP 690x     Virtual Network Computer Display Remote Control
CallManager Change Notification   TCP 7727     CallManager Change Notification. Cisco database layer monitor, Cisco TFTP, Cisco IP media streaming, Cisco TCD, Cisco MOH RealTime Change Notification
IPMA Service   TCP 8001     IP Manager Assistant Change Notification
ICCS   TCP 8002   TCP 8002 CallManagers in the same cluster Intra Cluster Communication
CTIM   TCP 8003        
Cisco Tomcat   TCP 8007     Web Requests  
Cisco Tomcat   TCP 8009     Web Requests  
Cisco Tomcat   TCP 8111     IIS, Web Requests to IPMA worker thread  
Cisco Tomcat   TCP 8222     IIS, Web Requests to EM application worker thread  
Cisco Tomcat   TCP 8333     IIS, Web Requests to WebDialer application worker thread  
DC Directory   TCP 8404     Embedded Directory Services Used for Directory services. Application Authentication / configuration. SoftPhone Directory. User Directory
Cisco Tomcat   TCP 8444     IIS, Web Requests to EM Service worker thread  
Cisco Tomcat   TCP 8555     IIS, Web Requests to Apache SOAP worker thread  
Cisco Tomcat   TCP 8998     Web Requests  
Cisco Tomcat   TCP 9007     IIS, Web Requests to CAR worker thread  
RTP UDP 16384-32767     UDP 16384-32767 Voice Media IP IVR Media. CCC IVR Media, Cisco SoftPhone, Media Streaming Application
Cisco SNMP Trap Agent   UDP 61441     Cisco Alarm Interface Receives some SNMP alarm in XML format.

Other AVVID Products

For Cisco Unity, refer to the Cisco Unity and Quality of Service (QoS) paper that describes any additional ports used (primarily between Microsoft Exchange and Cisco Unity) that are not listed in the table in this document. The actual Cisco Unity voice ports are registered via the TAPI service provider (TSP) using the Skinny protocol (TCP port 2000).

Related Information

Updated: Mar 05, 2008
Document ID: 43881