We have integrated our CUCM 8.0 with Third-Party callcenter solution over SIP trunk. We are facing intermittent one way audio for the calls made from Third-party client, which is installed on the agent PC, to the PSTN.
Third-partyClient on PC > SIP Trunk > CUCM > Voice Gateway > PSTN
From the packet capture we can see that for the non-working calls the RTP coming from the Voice Gateway and for working call RTP coming from the CUCM (Snapshot from packet capture attached).
But we know for the SIP call flow, once the initial signalling is done between the servers (Here CUCM and Third-party server) the RTP streams will be send only between the end-points. Can any one brief me what's happening here. Appreciate your response.
CUCM Pub - 10.203.1.20
CUCM Sub1 - 10.203.1.8
Voice Gateway - 10.203.1.105
Third-party server - 10.203.1.40
Packet capture can be downloaded from the dropbox link : https://www.dropbox.com/s/hu7w7no7qg8wqqi/Logs_20April2014.rar
The reason for this could be that a software MTP is getting allocated for a working call, so the RTP is passing through the server to which the MTP is registered. You can check the MTP usage through RTMT for working calls to confirm this.
The short answer is that you don't.... That isn't entirely true while at
the same time it kind of is, but for the most part you don't configure
the softkeys. You enable or disable them via TCL. Here is the long
answer. Be sure to read the whole thing or e...
Topology: IP Phone > Switches > Microsoft NPS setup to forward 802.1x
proxy to > ISE 2.1 patch 3 Authentication: EAP-TLS using Cisco MIC SANs
Phone Models 802.1X support? 802.1x flavor Addtl Comment EAP-MD5 EAP-TLS
Cisco 3905 Y Y N Cisco 6911 Y Y N Cisco ...
This document describe how DST changes and how time changes are
implemented in DST. Daylight Saving Time (DST) is the practice of
setting the clocks forward 1 hour from standard time during the summer
months, and back again in the fall, in order to make b...