Cisco 8961 Administration Manual page 225

Features, Templates, Services, and User Setup
port 5060
port range 49152 to 53247
port range 53248 to 65535
Step 5 Click Save.
Step 6 Click Apply Config.
TLS Session Resumption Timer
TLS Session resumption enables a TLS session to resume without repeating the entire TLS authentication
process. It can significantly reduce the time taken for TLS connection to exchange data.
Although Cisco Unified IP Phones 8961, 9951, and 9971 support TLS sessions, all TLS sessions do not support
TLS resumption. The following list describes the different sessions and TLS resumption support:
• TLS session for SIP signaling: supports resumption
• HTTPs client: supports resumption
• CAPF: supports resumption
• TVS: supports resumption
• EAP-TLS: does not support resumption
• EAP-FAST: does not support resumption
• VPN client: does not support resumption
For more information, see the Cisco Unified Communications Manager Administration Guide.
Set up audio and video port range
Audio and video traffic can be sent to different RTP port ranges in order to improve Quality of Service (QoS).
The following fields control the port ranges in the Cisco Unified Communications Manager Administration:
• Audio ports
• Video ports
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used for SIP over UDP transport
used for local ephemeral ports
used for the VxC single tunnel VPN feature
◦ Start Media Port (default: 16384)
◦ Stop Media Port (default:32766)
Cisco Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager 10.0
TLS Session Resumption Timer
(SIP)
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