2009/10/16 Ishfaq Malik <i...@pack-net.co.uk>: > > Brent Davidson wrote: >> We have several offices running Asterisk version 1.4.20.1, and OSLEC >> with Rhino R4FXO-EC and one running a Digium TDM800P card for interface >> to analog lines. All offices are running Snom 300 phones. Phones all >> have static addresses and are on the same physical network as the server. >> >> The problem we are having is that every so often we get someone calling >> in where we can hear their voice, but they can't hear us. If we >> immediately call them back everything is fine. The problem affects all >> offices and also happens when making sip to sip calls from one snom 300 >> to another. >> >> In addition we periodically have calls that drop off in the middle of a >> conversation like the connection was lost. I haven't been able to >> replicate any of these problems and the people that are having them >> can't seem to keep track of when they occur so I can go back and look in >> the logs. >> >> I suspect that both problems may be related though. Possibly a >> registration issue? Any ideas are welcome. >> >> > Hi > > For the sporadic one way audio, check that the codec list in the snom > phones is the same as set by the server. The codec list is in the RTP > tab of the identities. > > Hope that helps > > Ish >
Also check that your DNS servers are working and can resolve everything. I saw an issue similar to what you describe when a snom300 could not resolve its NTP server address. I cannot explain it, but sorting out DNS sorted out the communication issue. Regards, Steve _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2009 - October 13 - 15 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users