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Cisco Bug: CSCtd31084 - Cannot disable GSM-AMR CODEC on MGCP gateway when using iLBC

Last Modified

Jan 28, 2017

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)

Symptoms: GSM-AMR CODEC cannot be disabled on a Cisco MGCP gateway when using 
 iLBC. The CODEC will be selected regardless and then rejected due to lack of 
 Conditions: This symptom is observed under the following conditions:
 -iLBC is in use
 -GSM-AMR is not licensed for use
 -GSM-AMR is in SDP
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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  • Known Fixed Releases
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