Is this one-way or two-way sattilite?
On 4/27/06, Henry Coleman [VoIP-PBX.ca] <[EMAIL PROTECTED]> wrote: > Thanks Dave, yeh the voice did sound "bursty " but if it does > packetise the packets it doesnt do it consistantly. > every now and then a whole sentence will come through "as clear as a bell". > I wonder if making the call half duplex (push to talk) would be any > better ? > > Thanks again > > Henry > > > > > Dave Donovan wrote: > > > Hi Henry, > > > > Bandwidth isn't your only (or even primary) concern with satellite > > systems. You have to look at the latency. You could have high and > > variable latency in one or both directions depending on the type of > > service you're using. I spoke with a satellite provider several > > months ago and they advised me that they reduce header overhead by > > bunching packets up and sending them in big bursts. That's really > > going to affect the quality of your voice and I don't think there's > > much that a codec change will do. > > > > I'd run a ping for a few minutes and see what happens. Also consider > > that this will give you round-trip time and the latency may be very > > different if upstream is terrestrial (land line or whatever) and > > downstream is satellite. I'm not saying 'give up', just 'watch out'. > > > > Also, I remember seeing a thread along these lines a few months ago. > > I think there were a number of pretty intelligent responses. You > > might want to check the archives to get the benefit of other people's > > knowledge/experience. > > > > I'd be interested in knowing how you make out with it. Good Luck. > > > > Dave > > > > On 4/27/06, Henry Coleman [VoIP-PBX.ca] <[EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]>> wrote: > > > > Hi all, I am attempting to set up a SIP phone service to my > > cottage near > > Bancroft this involves using a friends satellite > > internet connection and some kind of wireless bridge. > > We've just tried a SIP x-lite softphone which he installed on his PC. > > > > The results are mixed. > > > > He can hear me fine (presumably because his download speed is fast > > enough) but his voice is broken up, > > every two or three words get cut out making it very difficult to > > understand. > > Does any one out there know if we can use a narrow band codec or > > make some > > adjustments to SIP to handle this problem. > > This is the only viable solution as the cottage is 6 km from the > > nearest > > phone line and > > is not within range of any cell tower (even with a 3 watt analogue > > phone and yaggi antenna). > > Hope someone can help. > > > > Henry > > > > > > > > -- > > Henry L.Coleman [ VoIP-PBX ] Tel.1 866 415-5355 Ext.301 > > > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]> > > For additional commands, e-mail: [EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]> > > > > > > > > > > -- > > David Donovan > > Consultant > > Fulcrum Solutions > > > -- > Henry L.Coleman [ VoIP-PBX ] Tel.1 866 415-5355 Ext.301 > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Andrew Tarzwell [EMAIL PROTECTED] ....eNd TrANsmISsIoN....
