Jitter is what your describing, it's a bad thing. http://en.wikipedia.org/wiki/Jitter
While VoIP may work (third party > 128ms echo cancellers, etc) most support organization won't go outside ITU-T G.114 recommendations. I've done Cisco 7940 phones deployed in the Gulf of Mexico on a oil platform using Callmanager based in US in 2003. The company controlled the satellite and prioritized voice, ping was 600ms. Worked well except the local calls were to Venezula which was too expensive per minute from US. Two phones ran up more than $1000US in 30 days. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Tom Moore Sent: Tuesday, July 22, 2008 11:40 AM To: 'Asterisk Users Mailing List - Non-Commercial Discussion' Subject: Re: [asterisk-users] issue with high latency Not true. Voip is done over satellite every day and those ping times are at least 540 and upwards of in the 700's depending on the technology used. The key here is keeping the latency stable. If the packet flow fluctuates too much in latency this is when a problem arises. Tom -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Steven Howes Sent: Tuesday, July 22, 2008 10:02 AM To: Asterisk Users Mailing List - Non-Commercial Discussion Subject: Re: [asterisk-users] issue with high latency On 22 Jul 2008, at 14:36, Nhadie wrote: > Pinging my.sipserver.com [202.203.204.205] with 32 bytes of data: > > Reply from 202.203.204.205: bytes=32 time=250ms TTL=56 > Reply from 202.203.204.205: bytes=32 time=250ms TTL=56 > Reply from 202.203.204.205: bytes=32 time=651ms TTL=56 Never going to work with that latency. I would say anything over 150 is probably pushing it. S _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 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 _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 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 ----------------------------------------- Disclaimer: This e-mail communication and any attachments may contain confidential and privileged information and is for use by the designated addressee(s) named above only. If you are not the intended addressee, you are hereby notified that you have received this communication in error and that any use or reproduction of this email or its contents is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and deleting it from your computer. Thank you. _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 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