SIP Conference facility

Hi All

Interesting forum this! My story is this, I plan to setup a non profit conference facility for about 15 users(if I can get that on my ADSL). I had in mind using ASTLinux and using the conference facilities available. My only problem is , that I am unable to source a Voip provider doing multiple Channels on one Local DDI. I am also assuming that ASTLinux does G729 as it Asterisk under the hood. Does anyone have any ideas?

Thanks

Hi Welcome to voipuser

Ok from the top.

you wont be able to run a conference for 15 users on a ADSL line even with G729.

Astlinux should support G729 you just need to buy the licences for the number you need @ $10 each.

Many providers will provide multiple channels, what most do is aggregate channels so you buy 8 DDIs and that gives you 16 channels.

this is my experience here in the USA when it comes to multi-line DID's. if you go to any of the major suppliers you get 2 channels; additional channels are very expensive($25/each or so compared with $2-3 for the first 2). in this case you save a lot of money if your callers do not mind dialing separate numbers. there are also some vendors that give away DID's free charge(they can do this because they are in rural parts of the country were interconnection are more expensive; so they earn a considerable amount when the numbers are called) these free vendors to my knowledge allow give unlimited channels. also skype is known to allow an unlimited number of simultaneous calls on its skypein service(but skype is very bandwidth heavy)