210-060 · Question #29
Which port is the default port for SCCP call signaling on Cisco Unified Communications Manager?
The correct answer is A. 2000. SCCP (Skinny Call Control Protocol) uses TCP port 2000 by default for unencrypted call signaling between Cisco IP phones and Cisco Unified Communications Manager.
Question
Which port is the default port for SCCP call signaling on Cisco Unified Communications Manager?
Options
- A2000
- B2443
- C5060
- D5061
How the community answered
(30 responses)- A90% (27)
- B3% (1)
- C7% (2)
Why each option
SCCP (Skinny Call Control Protocol) uses TCP port 2000 by default for unencrypted call signaling between Cisco IP phones and Cisco Unified Communications Manager.
TCP port 2000 is the well-known default port for SCCP call signaling; Cisco IP phones open a persistent TCP connection to CUCM on this port at registration time and use it throughout the call lifecycle to exchange call control messages such as RegisterMessage, KeyPadButtonMessage, and CallStateMessage.
Port 2443 is the default port for encrypted SCCP signaling over TLS (SCCP/TLS), not for the standard unencrypted SCCP connection.
Port 5060 is the default transport port for SIP (Session Initiation Protocol), which is a separate VoIP signaling protocol unrelated to SCCP.
Port 5061 is used for SIP over TLS for encrypted SIP signaling and has no relation to SCCP.
Concept tested: SCCP default TCP signaling port on CUCM
Source: https://www.cisco.com/c/en/us/support/docs/voice-unified-communications/unified-communications-manager-callmanager/19093-ports-uc-apps.html
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