Craig Guy wrote: > Hi Jac, > > No problem, I had originally spoken to Readytechnology and asked if he had a > version for OpenPBX and IPP 5. He replied that he was holding out for > someone to fund a codec based on IPP5, and there is certainly nothing wrong > with that position. I replied that if ZettaServe did develop an IPP5 codec > we would send him a copy of our code, which we will do shortly. I ported > his IPP 4.1 to OpenPBX, but was then unable to determine from the Intel > website if licenses for IPP 4.1 were still available. I then looked at > porting his codec to IPP5 but it was determined that we were better off > starting from scratch, which we did. We then also took the opportunity to > see if the timer changes in OpenPBX would allow the support of annex b which > in fact they do. The diff file for OpenPBX enables support of annex b - > further details regarding the diff file are available at the ZettaServe page > at http://www.zettaserve.com/default.asp?catid=78. Again, I believe that > annex b support is significant as I have seen documentation implying that it > can triple the amount of calls per given bandwidth - see > http://www.connect802.com/voip_bandwidth.php and calculate for g729 with and > without VAD enabled. > That tripling is the marketing department talking :-)
Most people will see some improvement, but you need many concurrent calls to see a big improvement in the peak bandwidth - which is the sizing factor for your pipe. So, it is only heavy users that see a big benefit. Its statistical, so you need lots of concurrent calls before they are statistically very unlikely to all be talking at once. Regards, Steve _______________________________________________ Callweaver-dev mailing list [email protected] http://lists.callweaver.org/mailman/listinfo/callweaver-dev
