>>>>> "John" == John Todd <[EMAIL PROTECTED]> writes: John> For what it's worth, I have noticed the same problem, but I think John> the problem is in IAX2, since my long-haul portions of the John> diagram were over IAX2, while my SIP clients are almost always John> sitting on the same LAN as the Asterisk server.
I have noticed these problems both in this kind of setup and in a SIP call to a remote Asterisk server. John> What codec were you testing with over IAX2? GSM. --J. >> [I have sent a message about SIP problems via gmane, but it seems >> the list is gatewayed one-way only...] >> >> The message was: >> >> I've been trying to use Asterisk as a SIP->PSTN gateway. It runs >> fine when the SIP client is on the local network and there is not >> packet loss. But now I've tried running a remote client (halfway >> around the globe) -- this works great until some packets get >> lost. After that it seems that either my client (linphone) or >> Asterisk doesn't want to resynchronize -- what gets played back is >> all voice packets as they have been received. This creates an >> increasing lag in the conversation and the only way I've found to >> fix it is to disconnect and reconnect again. >> >> Is anyone else seeing this? Is it linphone's fault, or is it >> expected behavior? >> >> Now, I have tried running another * on "my" side of the link. The >> setup then becomes: >> >> linphone -> * -> internet (IAX2) -> * -> PSTN (or echo). >> >> I'm testing with the echo application (GSM used everywhere) and I'm >> getting the same thing: everything seems to work, but sooner or >> later there is an audio pause and the delay grows. It never gets >> back to normal. I've had it grow to as much as 10s. >> >> What makes it even more surprising is the network performance. I've >> had ping running in the background, same TOS settings, 10 packets >> per second. It shows that my RTT is (min/avg/max/mdev) >> 220/229/287/8.85 with 0% loss! That's a pretty good network. So >> where do the pauses and delays come from? >> >> --J. _______________________________________________ Asterisk-Users >> mailing list [EMAIL PROTECTED] >> http://lists.digium.com/mailman/listinfo/asterisk-users John> _______________________________________________ Asterisk-Users John> mailing list [EMAIL PROTECTED] John> http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users