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Cisco Bug: CSCte92821 - ISDN call fails for 56kbps on Dialer Interface

Last Modified

Jan 28, 2017

Products (73)

  • Cisco IOS
  • Cisco 2951 Integrated Services Router
  • Cisco 892W Integrated Services Router
  • Cisco 881SRSTW Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco AS5400XM Universal Gateway
  • Cisco 1803 Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco VG204 Analog Voice Gateway
  • Cisco 861W Integrated Services Router
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Known Affected Releases

12.4(24)T3 15.0(1)M1.10 15.1(0.26)T 15.1(1)T 15.1(1.2)PI13d 15.1(1.4)T

Description (partial)

When a call is placed on Dialer interfaces with speed 56kbps.

All the B-channels will get busy, then there will be no free dialer to place a new call.
This is introduced after the commit of CSCtd51715.
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Bug Details Include

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