CUCM 10.5 Encrypted control and media

[vipersl65]

When a CUCM is encrypted;

1) It uses TLS for signaling and can fallback to TCP, correct?

2)for UDP it uses SRTP , correct?

3)any doc showing the encrypted ports uses?

thanks

[George Thomas · Accepted solution]

Correct, TLS fallbacks to TCP in mixed mode.

Voice uses SRTP if the Phone security profile is set for SRTP (Encrypted).

Here is the port list:

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

[vipersl65]

thanks George.  Now, for the SRTP ports, can they be the same as the RTP ports?  Reason I asked is we are already allowing the RTP ports and wondering if I have to create another firewall rules just for SRTP

thanks

[George Thomas · Accepted solution]

RTP and SRTP uses the same port range.

[vipersl65]

thanks