Call arrives to our IPCC. ICM script puts user to the IVR. IVR script executes (user makes selection from the voice menu).
Then call will transfer to an agent.
Suddenly call drops and agent's software enters "reserved" state and freeze in it.
May the thin 2 MB channel between CCM cluster and IPCC (ICM, IVR, etc) cause this issue?
Average RTT is 37 ms. QoS for VoIP UDP data stream and TCP session control was implemented on a thin channel.
Does CCM and IVR mark DSCP