...company's phone network using a denial of service attack. IOS software configured for the IOS Telephony Service, CallmanagerExpress or Survivable Remote Site Telephony phone systems are affected. System protects against threats to web apps...
http://www.computerweekly.com/Articles/2005/01/31/208027/in-brief.htm
...using a combination of Cisco CallManagerExpress and Cisco Unity Express...has an instance of the Cisco CallManagerExpress (CCME) software. The IP...routers CCME-36 Cisco CallManagerExpress license for 36 users AIM...
http://www.cisco.citynet.net/ciscowhitepaper.pdf