One way speech ,*****ing sound and silent speech

[luganomu]

Hello Experts

Recently we moved two e******* BSCs EVO BSC type from e******* CS core to Huawei CS core after this exercise customer started to experience below issue

Oneway speech
Silent speech
mute calls
Terribly sound
destorted audio quality

What is possible causes of this problem

BR

[SHIVAM]

Hi Luganomu,

Seems Transcoder/CIC Related Issue as it is used between BSC to MSC. Please get it checked.