Cisco Security Advisory – Multiple voice-related vulnerabilities have been identified in Cisco IOS software, one of which is also shared with Cisco Unified Communications Manager. These vulnerabilities only affect devices running Cisco IOS that have voice services enabled. The only exception is the vulnerability documented as Cisco bug ID CSCsi80102, which also exists on Cisco Unified Communications Manager.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/58384/cisco-sa-20070808-IOS-voice.txt
Source: https://packetstormsecurity.com/files/58384/Cisco-Security-Advisory-20070808-IOS-voice.html