Thread: Configuring Action Voip on Nokia N900
View Single Post
sergiori is offline sergiori
2011-04-24 , 11:41
Posts: 3 | Thanked: 0 times | Joined on Apr 2011
#17
Originally Posted by sharuz2000 View Post
Dear Rohid Thanks for your information. i have completed done as you said. but still i have voice problem when ever i make call from action voip i can hear their voice, but they cant hear my voice. and i couldnt find where i want enter codecs in nokia n900 . iam really frustated. earler i used N97 there is lot of supporting software like mobile voip & Nimbuzz i can made call from n97 crysytal clear voip call but n 900 not support anything. i think i wasting my money . please let me know what is solution for that?? how can i setup audio codec in n900? or is there any other supporting software?
The n900 is a great phone with very good sound quality, you just have to use the right codec depending on your connection.
For 2.5G, or 3G networks the best codec for the n900 is ilbc, the reason ilbc is not used very much on phones, is very cpu intensive, however the n900 works fine with this codec.

What you need to do is use a service provider that supports the codec ilbc, very few do that, most support g729 which is ok, but not the best for cellular networks due to the packet loss, and extremely few support the gsm codec.

Codec selection is critical for good voice quality under bad networks, if the network was perfect you would always use g711u or g771a.

ilbc uses almost the same bandwith as g729, however it works better than g729 when there is packet loss on the network, in a good network they are both very similar.

if you need to use ilbc code for your n900 check out www.vpn3000.com, there are no monthly fees and to try it out is free of charge.