nik600 wrote: > Hi to all > in a scenario where: > > - the bandwith is shared with other traffic (HTTP,VPN,ecc) > - the PBX is on a remote VPN peer > - due to many reasons Qos is not usable > > There is a IAX trunk between 2 Asterisk 1.4 i've tried different > codecs (ulaw,alaw,gsm) but the main problem still remain the same: too > many voice packet get lost. > > The main problem is surely on the network, but the strange thing is > that on the same network there is an H323 trunk from an Alcatel and a > Cisco CCM (using g711 codec) and in that case the voice isn't so bad! > > i've tried to enable jitterbuffer but i can't notice some difference. > I think if you have packet loss, a jitterbuffer would make no difference.. SOmething like PLC (packet loss concealment maybe ?) come to mind ?
Have you tried ILBC ? or SPEEX ? G.711 should be resilient, but I understand iLBC and Speex both have some tricks to handle PLC. Also, GIPS had some kind of magic sauce they offered (code-wise) to offer PLC to vendors ?? > Is there something else that i can do? > > Thanks to all > _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
