Am 22.06.2020 um 21:30 schrieb Michael Maier: > Did you check to prevent transcoding?
could you explain what do you mean and how to check it? >> On the Gateway (Banana PI), where the Asterisk server also runs, the >> load is about 0.50 during calls and it has a Gbps LAN. > > What's running on this device on parallel? What about other network > traffic - not necessarily to the internet interface? On the BananaPI? Nothing other PPP, Bind, NTP, Firewall (iptables) and Asterisk. >> I can't believe, the problem is here... > > That's irrelevant. You have to ensure, that the driver doesn't have any > problems. Reducing the queue sizes of the interface may help. I don't understand what you mean... > - Are you using NAT or is asterisk running on the device which runs the > ppp-interface? Asterisk runs on PPP interface > - What's the modem you are using? What about the wiring between APL and > modem? Is it done correctly? [2] Zyxel VMG1312B30A. It works correctly and using the Internet (upload and download) is not a problem > - Did you configure prioritization for the up-stream regarding RTP and > SIP? This is done with the tc tool. Yes > - Did you correctly configure tos? For Deutsche Telekom you may use > tos=0xb8 (pjsip). You have to verify it with Wireshark with your traces. > You have to set it to the same value as the packages which are received > from their server. I use SIP, not PJSIP... Do I have to do that, too? Which value? > - You have to use the DNS of Deutsche Telekom which they provide during > the ppp-login because they usually provide optimal sip servers for you > (regarding distance). You're RTT of ping (18 ms) is pretty bad. I'm > having here 5 ms to the primary server (Telekom provides 3). See > > dig +noall +answer _sip._udp.tel.t-online.de SRV > > e.g. (don't know the hostname for the business infrastructure) I have a forwarding to the DNS servers of Telekom configured in my bind, since the Gateway has to manage the internal domains, too... Regarding the ping time: wich line do you have? I have a DSL 50Mbps. Maybe your times are better due to a faster line? What is your opinion about the tests I did today with the friend and his phone as VoIP-peer? Thanks Luca Bertoncello (lucab...@lucabert.de) -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- Check out the new Asterisk community forum at: https://community.asterisk.org/ New to Asterisk? Start here: https://wiki.asterisk.org/wiki/display/AST/Getting+Started asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users