Re: [asterisk-users] One Way Audio

Thu, 10 Mar 2011 06:29:41 -0800 

Also it could be the routing issue as well.

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On Mar 9, 2011, at 7:43 PM, Duncan Turnbull <[email protected]> wrote:
So that suggests audio is flowing as follows in a unidirectional manner 


199.173.66.22.53102 > 74.204.4.5.11732  IP 74.204.4.5.11732 > 
209.216.2.203.60362
Somewhere near the end this pops up which is slightly different, I am guessing 74.204.4.5 is your asterisk box
19:18:36.389548 IP 74.204.4.5.11732 > 174.133.195.194.18364: UDP, length 172
I am not sure why this is happening or if its still part of the same conversation
Overall it looks a bit like the asterisk box thinks it needs to send rtp to a different location than perhaps its meant to i.e. its asymmetric - you can check the sdp in the sip invite to see where media is expected to be sent to
There is no rtp coming back from 209.216.2.203 so possibly this is device that isn't meant to be part of the conversation and either doesn't exist or is not expecting anything and thus not responding
What are the addresses of the devices in this conversation? so that you can match the traffic to device 

Cheers Duncan

On 10/03/2011, at 1:20 PM, Tim King wrote:


It looks like this:
19:18:34.782016 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.789527 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.802064 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.809757 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.821855 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.829598 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.842015 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.849764 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.861902 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.869568 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.881882 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.889739 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.901882 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.909612 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.921984 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.929664 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.941855 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.949589 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.962003 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.969592 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:34.981851 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:34.989543 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.002006 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.009973 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.022008 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.029539 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.042071 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.049561 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.062008 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.069612 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.081986 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.089519 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.101918 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.109722 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.122021 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.129590 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.141878 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.149709 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.161886 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.169561 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.181879 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.189710 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.201965 IP 199.173.66.22.53103 > 74.204.4.5.11733: UDP, length 60 19:18:35.201974 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.209552 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.221898 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.229625 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.241894 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.249566 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.261999 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.269701 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.281873 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.289521 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.301898 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.309599 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.322057 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.329595 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.341889 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.349555 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.361905 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.369599 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.381961 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.389534 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.401947 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.409753 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.421901 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.429605 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.441889 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.449714 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.462001 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.469738 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.481970 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.489713 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.501916 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.509584 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.521932 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.529633 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.541882 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.549514 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.561905 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.569629 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.581945 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.589535 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.601933 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.609748 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.621928 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.629542 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.641918 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.649552 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.662041 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.669660 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.681932 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.689593 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.702007 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.709739 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.721927 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.729584 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.741928 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.749724 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.761954 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.769703 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.782063 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.789751 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.802062 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.809632 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.821945 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.829662 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.842021 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.849555 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.862007 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.869574 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.881959 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.889585 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.902030 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.909697 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.922073 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.929518 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.941925 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.949511 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.962033 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.969638 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:35.982057 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:35.989576 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.002025 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.009782 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.021935 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.029591 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.041944 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.049761 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.061939 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.069719 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.082035 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.089685 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.102040 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.109568 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.122062 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.129698 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.142063 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.149589 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.162024 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.169637 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.181959 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.189543 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.202018 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.202027 IP 199.173.66.22.53103 > 74.204.4.5.11733: UDP, length 60 19:18:36.209751 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.222036 IP 199.173.66.22.53102 > 74.204.4.5.11732: UDP, length 172 19:18:36.229544 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.249522 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.269699 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.289586 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.309528 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.329544 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.349672 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.369715 IP 74.204.4.5.11732 > 209.216.2.203.60362: UDP, length 172 19:18:36.389548 IP 74.204.4.5.11732 > 174.133.195.194.18364: UDP, length 172 19:18:36.409578 IP 74.204.4.5.11732 > 174.133.195.194.18364: UDP, length 172 19:18:36.429550 IP 74.204.4.5.11732 > 174.133.195.194.18364: UDP, length 172
On Wed, Mar 9, 2011 at 7:01 PM, Duncan Turnbull <[email protected] > wrote: Can you do a tcpdump to look at the rtp streams on your box and check they are both generating and aiming at the right places 

IAX will have no issue with NAT/firewall but SIP / RTP can.

tcpdump -nn udp and portrange 10000-20000
(pick your portrange if its operating on something else)
Should show you mad lines of rtp going backwards and forwards (like below) when there is a conversation in place. If you can see it being sent from the asterisk box but not heard by the client then either try a different client, or something is blocking the return leg to your client
13:00:21.309139 IP 192.168.63.83.16450 > 192.168.63.30.13902: UDP, length 172 13:00:21.328703 IP 192.168.63.83.16450 > 192.168.63.30.13902: UDP, length 172 13:00:21.348572 IP 192.168.63.83.16450 > 192.168.63.30.13902: UDP, length 172 13:00:21.369096 IP 192.168.63.83.16450 > 192.168.63.30.13902: UDP, length 172 13:00:21.388572 IP 192.168.63.83.16450 > 192.168.63.30.13902: UDP, length 172 

Cheers Duncan

On 10/03/2011, at 12:26 PM, Tim King wrote:
Thank you I have also tried those settings. The main thing is coming from my voip provider all I am doing is bridging the calls to two other devices (1 trixbox and 1 digium aa50) via IAX trunks. Both devices are answering with an IVR and when I call in I can not hear the IVR. However if I call directly to a SIP client the person answering the SIP phone can hear me but I can not hear them at all. Its definately not a NAT issue which is what makes it even more confusing. When the call is in place a sip show channels shows me both lefs of the call and they are both using either alaw or ulaw so it should not be a codec translation issue either.
On Wed, Mar 9, 2011 at 6:19 PM, Satish Patel <[email protected]> wrote: 




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