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Cisco Bug: CSCum09273 - Call disconnect due to "supervisory disconnect anytone" command

Last Modified

Mar 25, 2020

Products (106)

  • Cisco IOS
  • Cisco 861W Integrated Services Router
  • Cisco VG224 Analog Voice Gateway
  • Cisco VG204 Analog Voice Gateway
  • Cisco 886VA-CUBE Integrated Services Router
  • Cisco 888W Integrated Services Router
  • Cisco AS5400XM Universal Gateway
  • Cisco 1812 Integrated Services Router
  • Cisco 1905 Serial Integrated Services Router
  • Cisco 2951 Integrated Services Router
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Known Affected Releases

15.1(4)M5

Description (partial)

Symptom:
Post IOS upgrade from 151-3.T1 to 151-4.M5 or later, calls through FXO ports are disconnecting always if "supervisory disconnect anytone" command is present in the FXO Voice-port. If we remove the command, calls would work without any issues. However, in 151-3.T1 calls would work fine with "supervisory disconnect anytone" command present in the voice-port.

Conditions:
The issue is observed in IOS versions from 151-4.M5 with "supervisory disconnect anytone" command present in the FXO Voice-port
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Bug Details Include

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