Does this same delta in volume exist if you perform a packet capture of the RTP streams and play it back?
If this is native to the RTP, and not being imposed by QM somehow, then you need to investigate your PSTN circuit. If it is a T1 PRI you can start with adjusting the input gain command on the router. The value is in db so 'input gain 3' would double the input volume.
You should span the phone's switchport. The RTP traffic is not forwarded to the QM server unless you are doing SPAN-based recording. The RTP is usually captured by the attached PC and encrypted before being forwarded to the QM server.
I am facing the same problem here on a AQM 8.5.1, and Calabrio support team says this is not an issue with AQM.
The problem is that it happens very sporadically, so it's very hard to troubleshoot.
I have installed a packet sniffer on the agent's PC, and also enabled the recording on UCCX server for this particular user. We are analyzing every call recorded for this user in AQM and waiting to get the problem.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
endpoints and other SIP related issues. Even though these traces are in
clear text, these texts can be gibberish unless you understand fully
what they mean. This document attempts to br...
Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
questions and it will render the proper jabber-config.xml file for you
to copy/paste. There is built in logic to verif...
CUCM Database Replication is an area in which Cisco customers and
partners have asked for more in-depth training in being able to properly
assess a replication problem and potentially resolve an issue without
involving TAC. This document discusses the bas...