It could be that the PCAP resolution is 10 ms. The phones don't have a real-time clock... But 50 ms is definitively not okay.
CS -----Ursprüngliche Nachricht----- Von: Tim Panton [mailto:t...@westhawk.co.uk] Gesendet: Dienstag, 19. Mai 2009 13:46 An: Asterisk Users Mailing List - Non-Commercial Discussion; Christian Stredicke Betreff: Re: [asterisk-users] Rusting Snoms? Christian, thanks, I'd never run pcap in a phone before - cool. The trace shows jitter - but in a weird way. some of the packets have delta's of > 20 ms but always a multiple of 10 so 50 and 30 occur, as do 10 and 0. Is that normal ? Tim. On 9 May 2009, at 11:04, Christian Stredicke wrote: > Because the phone is a digital system, I would suspect that it is a > problem with the switch. Run a quick PCAP trace to see where the > jitter comes from. Depending on the firmware version, you can do > that from the web interface. > > CS > > -----Ursprüngliche Nachricht----- > Von: asterisk-users-boun...@lists.digium.com > [mailto:asterisk-users-boun...@lists.digium.com > ] Im Auftrag von Tim Panton > Gesendet: Samstag, 9. Mai 2009 11:46 > An: Asterisk Users Mailing List - Non-Commercial Discussion > Betreff: [asterisk-users] Rusting Snoms? > > This is a bit off topic, because I 'think' it isn't an Asterisk > problem. > However I'm not sure and anyhow I'm hoping someone may recognize the > symptom. > > We moved offices a month ago. Our trusty SNOM190s (all between 3 and > 5 years old) were packed up for the move, then unpacked a couple of > weeks later. > > On unpacking them and connecting them to the new network, several of > them didn't work well. The symptom is that outgoing RTP audio is > garbled - like the packets are pulsed. Inbound is fine. This isn't > true for all of the phones, just some of them. (The all run the same > SNOM firmware) > > To be fair, they are on a new network, so it could be the cables or > new 1Gb switches, except that the problem moves with the phone if > you relocate it from one desk to another. > > I've tried a fresh asterisk install, but that didn't help either. > > So I am forced to conclude that something went 'bad' in those > (old) phones while they were switched off. Has anyone got any clues > for me? > > Thanks! > > Tim. > > Tim Panton - Web/VoIP consultant and implementor www.westhawk.co.uk > > > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users Tim Panton - Web/VoIP consultant and implementor www.westhawk.co.uk _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users