The user can change the sound card, but not the plugin device.
Plugin device used: for capture --> plug:surround40 --> better sound quality
			playback --> plug:dmix
Dmtf working
Still no ringtones

++ Sound improvements on capture

The server sends the list of the sound card it founds on the system to the GTk without
checking it is a capture or a playback device
TODO: improve the list sent ( must add abstraction device plug, default, etc..)
TODO: improve sound quality for capture

Not implemented yet: ringtones, dtmf

#### Recommended play devices names (alsa-project.org)
#### http://www.alsa-project.org/main/index.php/DeviceNames
Device: #default --> capture : too much noise
		     playback : glitchs
		     dmix
	#plug:front  -->  playback almost perfect
		         capture :bad audio (noise noise noise !!!)
 		         dmix not enabled
 	#plug:rear  -->  doesn't exist on my sound card (Error: unknown PCM device)
	#plug:center_lfe --> idem
	#plug:side  --> idem

If there is multiple sound cards on your system, you can select the one you prefer like that:
  plug:front:0 select the card 0, 0 refers to the number in /proc/asound/cards.
  plug:front:Intel with the name of the card
My /proc/asound/cards:
0 [Intel          ]: HDA-Intel - HDA Intel
                      HDA Intel at 0xfdff4000 irq 23

##### Device names not recommmended (alsa-project.org)
These devices maps directly to the driver devices and doesn't handle an abstraction
	plughw -->  playback almost perfect
		    capture : noise plus weird behaviour
                    dmix not enabled
        hw  -->     playback : not audible ( maybe no resampling ?? no format conversion ??)
		    capture : XRUN mode
	            dmix not enabled

OpenAL and portaudio

Seg fault on the server on call

But size of the frames to work on

The codecs are loaded at the initialization of the rtp session and destroyed at the end.
GSM audio quality is far better now. Because the dynamic library had to load at every 20ms the libgsm, it introduced a delay at each frame

Bug correction.
Remove alaw header from git repository.
Add GPL license in ulaw.cpp

!!!!!!!!!!!  Must have libspeex1 and libspeex1-dev installed