I am in a great trouble regarding the Cisco
All the things working normally and from last week end users told me that after one or 02 minutes from start of call, one side cannot hear the other side.
After 01 or 02 minutes voice call becomes one way.
We are using combination of FXS and E&M
I have checked enough bandwidth is available for the voice calls , also QoS has been implemented.
Could some one help me to resolve this trouble.