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Cisco Bug: CSCul59525 - SIP calls are not cleared properly on ASR CUBE

Last Modified

Apr 25, 2020

Products (17)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ME 3600X-24TS-M Switch
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
  • Cisco ME 3600X-24CX-M Switch
  • Cisco 7600 Series Route Switch Processor 720 with 10 Gigabit Ethernet Uplinks
  • Cisco ME 3600X-24FS-M Switch
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Known Affected Releases


Description (partial)

ASR1K cube running Cisco IOS Release XE3.8S, many hung calls are seen over a period of one week.  There are three different symptoms of hung call legs. 
Example 1: One of the call leg is in stuck state
Example 2: Both the call legs are active and connected and stuck for more than week
Example 3: Both call legs are stuck in disconnect state but one of the call is connecting and other leg is in active state.


VzB ---sip----CUBE------sip------SME Cluster-----sip------Admin04 cluster---------IP Phones
                                                                     |                                     |
                                                                     |                                     ----------------sip trunk to fax server
                                                                     | ------------------SIP trunk to Unity connection vm

Though the reason for this issue is unknown, it is very random in nature. Hung calls are seen for a normal sip to sip calls going to IP phone, or calls that routes to unity connection voicemail and also stuck fax calls.
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