Firewall ports needed to open between CUCM and TC endpoints

[VCsupport17]

Hi,

What are the needed ports to open to be able to register TC endpoints (SX series) to CUCM and discover other services?

Thanks,

Sy

[Manish Gogna]

Hi Sy,

Please check "Table 6 Signaling, Media, and Other Communication Between Phones and Cisco Unified Communications Manager" section of the following link

http://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/port/10_0_1/CUCM_BK_T537717B_00_tcp-port-usage-guide-100/CUCM_BK_T537717B_00_tcp-port-usage-guide-100_chapter_01.html

Manish

[Venkatesh Perumal]

You have to open the HTTP/HTTPS ports as well as the Trust Verification Service (TVS) ports which include 2445/TCP.

[VCsupport17]

Hi, 

Should I define the ports in both direction?

SX endpoints ---> CUCM 

CUCM ----> SX endpoints 

Thanks.

[Manish Gogna]

Hi,

Yes, it appears from the documentation that you should open them both ways "While virtually all protocols are bidirectional, directionality from the session originator perspective is presumed. In some cases, the administrator can manually change the default port numbers, though Cisco does not recommend this as a best practice."

Manish