Cisco ASA 5512-X Configuration Guide

CHAPTER
14-1
Cisco ASA Series Firewall CLI Configuration Guide
14
Inspection for Voice and Video Protocols
The following topics explain application inspection for voice and video protocols. For basic information
on why you need to use inspection for certain protocols, and the overall methods for applying inspection,
see Getting Started with Application Layer Protocol Inspection, page 12-1.
• CTIQBE Inspection, page 14-1
• H.323 Inspection, page 14-3
• MGCP Inspection, page 14-12
• RTSP Inspection, page 14-17
• SIP Inspection, page 14-22
• Skinny (SCCP) Inspection, page 14-30
• History for Voice and Video Protocol Inspection, page 14-35
CTIQBE Inspection
CTIQBE protocol inspection supports NAT, PAT, and bidirectional NAT. This enables Cisco IP
SoftPhone and other Cisco TAPI/JTAPI applications to work successfully with Cisco CallManager for
call setup across the ASA.
TAPI and JTAPI are used by many Cisco VoIP applications. CTIQBE is used by Cisco TSP to
communicate with Cisco CallManager.
For information on enabling CTIQBE inspection, see Configure Application Layer Protocol Inspection,
page 12-9.
• Limitations for CTIQBE Inspection, page 14-1
• Verifying and Monitoring CTIQBE Inspection, page 14-2
Limitations for CTIQBE Inspection
Stateful failover of CTIQBE calls is not supported.
The following summarizes special considerations when using CTIQBE application inspection in specific
scenarios:
• If two Cisco IP SoftPhones are registered with different Cisco CallManagers, which are connected
to different interfaces of the ASA, calls between these two phones fail.

Cisco ASA 5512-X Specifications

General

Brand	Cisco
Model	ASA 5512-X
Category	Firewall
Language	English