Preview Tool

Cisco Bug: CSCtb28137 - Need ability to detect tone played before recorded announcements

Last Modified

Feb 04, 2017

Products (1)

  • Cisco 2800 Series Integrated Services Routers

Known Affected Releases


Description (partial)


IOS Gateway does not detect non-standard tones played by the Service provider when the called number is invalid. 


This problem was observed when the Cisco dialer placed a call to an invalid cell phone number 
(not in service / disconnected) across a IOS T1 CAS Gateway configured for SIT Tone detection.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.