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Cisco VoIP UDP Port Numbers

kylseverson
Level 1
Level 1

‎04-09-2003 01:26 PM - edited ‎03-12-2019 11:24 PM

I am trying to classify Cisco VoIP for QoS and I cannot find the UDP port numbers. Can anybody point me in the right direction?

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Chester Rieman
Cisco Employee
Cisco Employee

‎04-09-2003 01:29 PM

For RTP traffic, they are UDP 16376-32767, TCP 1720 for H323.

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kylseverson
Level 1
Level 1
In response to Chester Rieman

‎04-09-2003 01:31 PM

Thank you, do you have a URL to an official VoIP design document?

fiqbal
Level 1
Level 1
In response to kylseverson

‎04-11-2003 06:34 PM

DHCP UDP

67/68

HTTP TCP

80

RTP UDP

16384-32767

TAPI/JTAPI TCP

2748

Cisco Softphone Directry Lookup TCP

389/8404

Cisco Skinny TCP / Ethernet Phone Port

2000

Digital Port

2001

Analog Port

2002

MGCP Listen Port

2427

MGCP Keep-alive Port

2428

HIDS Management TCP

5000

ricurdy
Level 1
Level 1
In response to Chester Rieman

‎04-14-2003 02:51 PM

How does Callmanager assign the udp ports during call setup? We want to restrict CCM to a small number of ports for firewall securioty reasons. Is this possible? Please respond to curdyr@nationwide.com also. Thanks!

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