ADPCM != G.726 they are a little bit different. codec_adpcm.c and codec_g726.c
bkw > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of Benjamin on Asterisk Mailing Lists > Sent: Tuesday, September 07, 2004 10:24 PM > To: Lyle Giese > Cc: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [Asterisk-Users] iaxy vs sipura > > On Tue, 7 Sep 2004 15:40:00 -0500, Lyle Giese <[EMAIL PROTECTED]> > wrote: > > Hmmm, I thought 56k modems were 56k outbound only and maxs at 33k > inbound > > or did the standard change again when I wasn't looking? > > > > And besides when did you get better than 28.8 through a hotel PBX? >33k > > with a 56k modem in the real world is not that common. > > Don't mix up the content of different posts. > > In one post, I explained how I used IAX and ILBC successfully on a sub > 20k dialup link in Egypt (that was not a hotel but an office, BTW) and > in a different paragraph I mentioned hotels in foreign countries as > one of many locations where things can go funny. > > In another post, I responded to a question whether or not it might be > possible to use an IAXy on a 33k or 56k dialup connection. There was > no mentioning of any hotels and I did say that I have not used an IAXy > myself. My comment that the IAXy *should* work on a 56k link was based > on the fact that it supports ADPCM and if you check out the specs of > most DSPs which do ADPCM you will find that they do 16, 24, 32 and 40 > kbps, although the ITU ADPCM recommendation (G.726) talks about 32 > kbps. Which chip the IAXy uses and which modes that chip supports, I > guess only Digium can tell you. If you want to be absolutely sure, > then you may just want to try it out. > > In fact, I think it would be very welcome if somebody with actual > experience testing the IAXy on the road posted some feedback here. > There is nothing that beats testing in the field. > > rgds > benjk > > -- > Sunrise Telephone Systems, 9F Shibuya Daikyo Bldg., 1-13-5 Shibuya, > Tokyo, Japan. > > NB: Spam filters in place. Messages unrelated to the * mailing lists > may get trashed. > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
