From mitch, 5 Years ago, written in FreeSWITCH.
  1. so with opus it seems FS tries to negotiate a rate that is not supported and drops the call, any easy way to stop this?
  2.  
  3. 2017-02-23 11:07:39.638528 [DEBUG] switch_core_media.c:2983 Changing Codec from opus@20ms@48000hz to opus@120ms@48000hz
  4. 2017-02-23 11:07:39.679057 [WARNING] switch_core_codec.c:721 Codec opus Exists but not at the desired implementation. 48000hz 120ms 1ch
  5. 2017-02-23 11:07:39.679057 [ERR] switch_core_media.c:3020 Can't load codec?
  6. 2017-02-23 11:07:39.679057 [NOTICE] switch_core_media.c:3021 Hangup sofia/softphone/9998 [CS_EXCHANGE_MEDIA] [INCOMPATIBLE_DESTINATION]