Has any one had a user complain about a call where bits of the person at the other end repeats itself... I have one user who said he has had a few calls where the person's voice has repeated several times but the other person was not repeating... Could this be some form of Jitter?
We occasionally have calls that start distorting briefly and/or retransmitting portions of the conversation from the non-ip side. Since UDP doesn't retransmit lost packets, I am at a loss of how this could occur.
I have had this problem. We use IP phone and it calls across the wan to an h.323 gw to fxs port. The IP phone will hear sometimes the other party repeat. I have a tac case open and they found that some of the timestamps are missing. Example: timestamps go 1,2,3,20,21,22,23. 4-19 are missing. The buffer starts to buffer and then fills. When it gets full it has to send to the packets. This has created delay as well for us. I was able to send a sniffer trace off the phone to tac. They could then listen to the call and heard the repeat. They think they found the issue for us. It has to do with having caller-id enabled on the fxs ports? I still have this case open trying to get a resolution. Our workaround is turn caller-id off. You may try that if this applies to your config. I still do not understand why the call repeats.
Would it be possible for you to post the case number. I am working on a similar problem with my local SE and it might help if he can talk to the TAC engineer working on the case. Our problem involves FXO ports connected to the PSTN and the IP phone user will hear the far end voice repeated for about 1 second at various points during the call.
Can you provide more information about the local setup where this problem is happening?
I experienced something similar. I had a 3640 router where there were a high number of errors occurring on the Ethernet interface in full-duplex mode. This produced a variety of problems for Voice traffic, most notably during periods of high traffic through the router. In one instance, the majority of calls inbound to a particular user produced an echo (repeat) of the IP phone user's voice as much as two seconds later.
The LAN infrastructure consists of 3524-PWR switched with 1000BaseT uplinks to a 3550 that is doing the routing for all the VLANs. The site is relatively small, under 40 phones and maybe that many workstations. The 3660 is connected to a port on one of the 3524s. The port is 100Mb/full duplex and there are no errors or collisions on the port. Thanks
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 ...
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