I have an issue with voice quality in calls. When yo call the call is established correctly, but after 2 or 3 seconds, the voice quality degrades until it is almost impossible to hear something. The call is never droped.
I'm new in VoIP troubleshooting, soif somebody can guide me trough this problema I have. Also, in the Data network I start to configure QoS. In switches I'm configuring mls qos trust dscp. But in routers this command is not available. Does the routers will forwards packet and keep the EF mark attached to it?
thanks a lot and regards....