I have a 3825 router acting as an E1 gateway. This is under Call Manager control using MGCP. The RTP packetization is configured for 10mS. Using a G.729 codec. My customers are complaining of "choppy/robotic" voice intermittently. When I analyse the RTP stream from the gateway I notice that the RTP payload changes from 20 bytes to 2.Am I correct to assume that the RTP payload should remain constant.
On the phones I see it set for 20. If I trace the call on CM and look at the MGCP CRCX message that has the p=20. What I don't get is that the packet size has to be a mutliple of the codec sample which has a minimum value of 10ms so the twenty value is just two samples per packet, so how come I get an RTP payload of 2 bytes? May raise a TAC. Thanks
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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 ...