Preview Tool

Cisco Bug: CSCul84925 - T38-Page data is not being sent by TDM gateway to terminating fax device

Last Modified

May 22, 2018

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Inbound fax failure.  The terminating side does not see the page data arrive and as a result the terminating fax machine tears down the call indicating that the fax had failed.

When faxes come in and utilize DSP for analog to digital conversion (Analog, TDM, etc.) page data is seen to arriving at the gateway (from the perspective of a PCM capture) after the CFR is sent by the terminating fax device.  The page data is not being packetized by the DSP and sent by the gateway to the terminating fax device.  This results in the terminating fax device tearing down the call.
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.