Hi, Can you track the call with one-way audio. That could be a big deal if there are alot of servers in your asterisk farm. If you can trace which asterisk server it happens and verify its sip settings "externip" - also "rtp set debug on" for a brief time interval can tell you the story. Yes router can be an issue where Inbound network traffic is ACL restricted and outbound traffic from server is almost never ACL-ed - so that can be one case. Up till here I'm assuming that SDPs are all well negotiated between phones and servers.
Now, > The phones work properly without audio issues for 10-15 minutes, then one > way-audio happens Do you see any re-INVITES exchanging between the phones and maybe both the A & B parties trying to directly communicate with each other !!? Do you've any CISCO PIX/ASAthingie in your network ? Maybe it times-out/expires the connection stream due to inactivity !? These are few things I could think of troubleshooting such an issue. Maybe some other hints or details from you can help focus in one particular area. Regards, Sammy On Thu, Mar 29, 2012 at 5:23 AM, Matt Hamilton <[email protected]>wrote: > We are using Opensips as a load balancer/dispatcher for Asterisk servers. > All these servers are in a DMZ and have public IPs. SIP traffic goes thru > Opensips, but RTP is between Asterisk servers and UACs. > > All the UACs are behind NAT, and there are two kinds based on nat_uac_test > (in our case set to 18): > > 1. The ones for which flag 2 (the "received" test) applies (address in Via > is compared against source IP address of signaling). These are mostly > behind firewalls, and source and via ports are the same - 5060. > > 2. The ones for which flag 16 applies (if the source port is different > from the port in Via). These phones are directly connected to a Cisco > router thru a switch. > > > We are having intermittent one-way audio problems for the clients in 2 in > an environment where a client puts a call on hold and the other one picks > up. The phones work properly without audio issues for 10-15 minutes, then > one way-audio happens. We can't find anything out of the ordinary in the > SDP fields; all the IPs seem to be correct. > > BTW, phones in 1 above work fine (all the time), and all the phones are > exactly the same (for both 1 and 2 - same brand, firmware, configuration). > > Has anyone experienced such intermittent one-way audio issues? Can the > router cause this somehow (which is configured by our provider)? > > Thanks a lot, > Matt > > _______________________________________________ > Users mailing list > [email protected] > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > >
_______________________________________________ Users mailing list [email protected] http://lists.opensips.org/cgi-bin/mailman/listinfo/users
